Iveco Error Tree User Manual

Name: Iveco Error Tree
Brand: Iveco
SKU: 4536922
Rating: 4.4 (41 reviews)

4.4 (41)

Failure tree

IVECO

1328 754 105

Subject to technical changes

Copyright by ZF

This documentation is protected by copyright. Any reproduction and dissemination in whatever form – also in adapted, paraphrased or extracted form – in particular as a reprint, photomechanical or electronic reproduction or involving storage in data-processing equipment or data networks without approval by the holder of the copyright is prohibited.

Printed in Germany

ZF Friedrichshafen AG

Competence Contents LKS-T / Editing MC-C

Edition: 2004-02

SW31_13e

1328 754 105

Abbreviations - Contents

Abbreviation	Meaning
ABS	Anti-locking system
ADVP	Digital output power supply (+)
alpha_fp	Accelerator pedal position (value in %)
AL	Insufficient air (air deficiency)
ASR	Anti-slip control
aux_stat_zbr	CAN message
BN	Vehicle power supply
Buka	Terminal tester
CAN	Controller Area Network (CAN)
ECU	Electronic control unit (Transmission control)
EDC	Electronic-diesel-control (EDC) (engine electronics)

Eol_Parameter	End of line (entry of vehicle parameter e.g. rear axle ratio)

ERC1_DR	CAN message
EST	Electronic control (e.g. Intarder control EST 48)
FFR	Vehicle controller
Fzg	Vehicle
GA	Gate
GB	Transmission brake
GV	Splitter group
GVL	Splitter group, low
GVS	Splitter group, high
GP	Range change group (planetary group)
GPL	Range change group, low
GPS	Range change group, high
GS	Transmission actuator
HG	Main transmission
i_HA	Rear axle ratio
i.O	OK
Ink	Incremental (step)
Kitas	Active output speed sensor for speedo
K1	Constant 1
K2	Constant 2
KM	Short circuit to earth/ground
KP	Short circuit to positive
KS	Clutch actuator
m_dd_edc	Calculated EDC injection rate (driver's request)
m_mbr	Current engine brake torque
m_mot_akt	Current injection quantity for EDC engine
m_sekret	Secondary retarder brake torque from CAN message ERC1 taken from
	Intarder (Driveline Retarder)

n_mot	Engine speed (rpm)
n_sek	Transmission output shaft speed
OEM	Original equipment manufacturer
PTO	Power-take-off
TC1_FT	CAN message
UFB	Faultfinding, rectification
v_cc_set	Cruise control set requested speed
Valeo	Clutch manufacturer
VM	Supply ground
WSI	Wheel speed information (CAN message)
z_Fbr	Foot brake signal
z_kd	Kickdown signal
z_low_idle	Idling switch signal
z_ret_rück	Intarder down-shifting request

ZF Friedrichshafen AG
LKS-T	ZF-ASTRONIC_1328_754_105

Error number

ZF	IVECO

2	2 - A
3	2 - A
4	2 - A
5	2 - A
6	2 - A
7	2 - A
8	2 - A
9	2 - A
10	2 - A
11	B
12	C
13	E
14	E
17	11
18	12
19	13
20	14
21	15
22	16
25	19
26	1A
27	1B
28	1C
29	1D
30	1E
31	1F
32	20
33	21
34	22 - 2A
35	22 - 2A
36	22 - 2A
37	22 - 2A
38	22 - 2A
39	22 - 2A
40	22 - 2A
41	22 - 2A
42	22 - 2A
43	2B
44	2C
45	2D
46	2E
49	31
50	32
51	33
52	34
53	35
54	36
59	3B
60	3C
61	3D
62	3E
63	3F

ZF Friedrichshafen AG	ZF-ASTRONIC_1328_754_105
LKS-T 2004-01

Error number

ZF	IVECO

64	40
65
66	42 - 4A
67	42 - 4A
68	42 - 4A
69	42 - 4A
70	42 - 4A
71	42 - 4A
72	42 - 4A
73	42 - 4A
74	42 - 4A
75	4B
76	4C
77	4D
78	4E
81	51
82	52
83	53
84	54
85	55
86	56
89	59
90	59
91	5B
92	5C
93	5D
94	5E
95	5F
96	60
97	61
98	62
99	63
100	64
101	65
102	66
103	67
104	68
105	69
107	6B
108	6C
110	6E
113	71
114	72
117	75
118	76
119	77
120	78
121	79
122	7A
123	7B
124	7C
126	7E

ZF Friedrichshafen AG	ZF-ASTRONIC_1328_754_105
LKS-T 2004-01

Error number

ZF	IVECO

127	7F
128	80
129	81
130	82
131	83
132	84
133	85
134	86
135	87
136	88
137	89
138	8A
139	8B
140	8C
141	8D
142	8E
143	8F
144	90
145	91
146	92
147	93
148	94
149	95
150	96
151	97
152	98
153	99
154	9A
155	9B
156	9C
157	9D
158	9E
159	9F
160	A0
163	A3
164	A4
165	A5
166	A6
168	A8
169	A9
170	AA
171	AB
174	AE
175	AF
177	B1
178	B2
179	B3
180	B4
181	B5
182	B6
183	B7
184	B8

ZF Friedrichshafen AG	ZF-ASTRONIC_1328_754_105
LKS-T 2004-01

Error number

ZF	IVECO

188	BC
190	BE
191	BF
192	C0
193	C1
194	C2
197	C5
199	C7
226	E2
227	E3

ZF Friedrichshafen AG	ZF-ASTRONIC_1328_754_105
LKS-T 2004-01

Error number

IVECO	ZF
11	17
12	18
13	19
14	20
15	21
16	22
19	25
20	32
21	33
31	49
32	50
33	51
34	52
35	53
36	54
40	64
51	81
52	82
53	83
54	84
55	85
56	86
59	89
59	90
60	96
61	97
62	98
63	99
64	100
65	101
66	102
67	103
68	104
69	105
71	113
72	114
75	117
76	118
77	119
78	120
79	121
80	128
81	129
82	130
83	131
84	132
85	133
86	134
87	135
88	136
89	137
90	144
91	145
92	146

ZF Friedrichshafen AG	ZF-ASTRONIC_1328_754_105
LKS-T 2004-01

Error number

IVECO	ZF
93	147
94	148
95	149
96	150
97	151
98	152
99	153
AA	170
1A	26
1B	27
1C	28
1D	29
1E	30
1F	31
2 - A	2
2 - A	3
2 - A	4
2 - A	5
2 - A	6
2 - A	7
2 - A	8
2 - A	9
2 - A	10
22 - 2A	34
22 - 2A	35
22 - 2A	36
22 - 2A	37
22 - 2A	38
22 - 2A	39
22 - 2A	40
22 - 2A	41
22 - 2A	42
2B	43
2C	44
2D	45
2E	46
3B	59
3C	60
3D	61
3E	62
3F	63
42 - 4A	66
42 - 4A	67
42 - 4A	68
42 - 4A	69
42 - 4A	70
42 - 4A	71
42 - 4A	72
42 - 4A	73
42 - 4A	74
4B	75
4C	76
4D	77
4E	78

ZF Friedrichshafen AG	ZF-ASTRONIC_1328_754_105
LKS-T 2004-01

Error number

IVECO	ZF
5B	91
5C	92
5D	93
5E	94
5F	95
6B	107
6C	108
6E	110
7A	122
7B	123
7C	124
7E	126
7F	127
8A	138
8B	139
8C	140
8D	141
8E	142
8F	143
9A	154
9B	155
9C	156
9D	157
9E	158
9F	159
A0	160
A3	163
A4	164
A5	165
A6	166
A8	168
A9	169
AB	171
AE	174
AF	175
B	11
B1	177
B2	178
B3	179
B4	180
B5	181
B6	182
B7	183
B8	184
BC	188
BE	190
BF	191
C	12
C0	192
C1	193
C2	194
C5	197
C7	199
E	13

ZF Friedrichshafen AG	ZF-ASTRONIC_1328_754_105
LKS-T 2004-01

Error number

IVECO	ZF
E	14
E2	226
E3	227

ZF Friedrichshafen AG	ZF-ASTRONIC_1328_754_105
LKS-T 2004-01

Iveco error number:	2 – A, 22 – 2A, 42 – 4A
Iveco error number:	2 – A, 22 – 2A, 42 – 4A
Error display:	In vehicle display:	Error 2 – A
		Error 22 – 2A
		Error 42 – 4A
	MobiDig/ Testman:	Error 02		– 10
		Error	34	– 42
		Error	66	– 74

Error description: Error 02 – 10: Short circuit to ground at output to valve Y2 – Y10. Error 34 - 42: Interruption at output to valve Y2 – Y10.

Error 66 -74: Short circuit to plus (+) at output to valve Y2 – Y10

Error detection: By ECU hardware, if output is activated.

System response: The automatic shift unit is deactivated. If the error occurs during shifting, the selected gear remains engaged, depending on the driving condition, or the ECU tries to shift to an equivalent gear. If both options are not possible, the main transmission (HG) shifts into neutral. Engagement of selected substitute gears during standstill and driving is possible.

Short-circuited shift valve outputs are deactivated. Error present during ignition on, engine start impossible.

Follow-up error possible, ZF error number: 155 (9B), 152 (98) , 150 (96) 148 (94), 144 (90), 136 (88). If 2 errors do occur, then, the system is not available!

Error rectification:

Completely replace		Alternative solution
transmission actuator (in acc.
transmission actuator (in acc.
with rep. manual)
with rep. manual)


		Disassemble transmission
		actuator
		(upper-lower section)


		Replace transmission actuator
		lower section

ZF Friedrichshafen AG	ZF-ASTRONIC_1328_754_105_02, 34, 66
LKS-T 2004-01

Iveco error number:	B, 2B, 4B

Error display:	In vehicle display:	B, 2B, 4B
	MobiDig/ Testman:	11, 43, 75
Error description:	Error 11: Short circuit to plus (+) at output to warning buzzer.
	Error 43: Interruption at output to warning buzzer.
	Error 74: Short circuit to ground at output to warning buzzer.
Error detection:	By ECU hardware, by error 11 if output is activated and by error 43/75, if
	output is not activated.
System response:	In case of error 11, the warning buzzer is permanently active, and by error
	43/75 the warning buzzer cannot be controlled.

Error rectification:

Check output ADM pin 12 on Iveco range selector

Conduct measurements with warning buzzer connected

Conduct measurements without warning buzzer connected

Further errors related to the Iveco range selector (PTO, rear light, ZF CAN)

Check vehicle-end wiring (Iveco)!

Check warning buzzer!

ZF Friedrichshafen AG

LKS-T 2004-01

In case of vehicles with MUX (multiplex unit) ZF check is impossible! OEM task

Ignition off: Disconnect plug pin 12 from range selector. Resistance measurement line 12 to ground: as is


Approx. <			> 100 KOhm
1 KOhm			Check/Replace
Check/Replace			range selector
wiring harness,
warning buzzer.

Ignition off: Disconnect plug pin 12 from range selector. Resistance measurement line 12 to ground. AS IS:


> 1 MOhm			< 1 MOhm
Lines OK			Check/Replace
Check/Replace			wiring harness,
range selector			warning buzzer.

Notice:

Range selector and wiring

Display ZF scope of delivery

ZF-ASTRONIC_1328_754_005_11, 43, 75

Iveco error number:	C, 2C, 4C
Iveco error number:	C, 2C, 4C
Error display:	In vehicle display:	C, 2C, 4C
	MobiDig/ Testman:	12, 44, 76
Error description:	Error 12: Short circuit to ground at output to rear light relay
	Error 44: Interruption at output to rear light relay
	Error 76: Short circuit to plus (+) at output to rear light relay
Error detection:	By ECU hardware, if output is activated.
System response:	ECU output is deactivating. Rear light does not function anymore.
	No further system restrictions.

Error rectification:

Vehicle with MUX

Further errors related to the Iveco range selector (PTO, warning buzzer, ZF CAN)

Check output ADM pin 5 on Iveco range selector

Output ADM pin 5 on Iveco range selector defective (resistance measurement approx. 330 Ohm).

ZF check impossible!

Replace range selector

Check vehicle-end wiring!

ZF Friedrichshafen AG	ZF_ASTRONIC_1328_754_105_12, 44, 76
LKS-T 2004-01

Iveco error number:	D, E
Iveco error number:	D, E
Error display:	In vehicle display:	D, E
	MobiDig/ Testman:	13, 14
Error description:	Error 13: Short circuit to ground at output to PTO 1.
	Error 14: Short circuit to ground at output to PTO 2.
Error detection:	By ECU hardware, if output is activated.
System response:	During travel, gear shifts are blocked. If the vehicle is at a standstill, the
	clutch opens and a shift is automatically made to neutral. Other gear shifts
	not possible.

Error rectification:

Vehicle with MUX

Further errors related to the Iveco range selector (PTO, warning buzzer, ZF CAN)

PTO 1: Output ADM pin 13. PTO 2: Output ADM pin 4.

Check at range selector!

Pin 4 and/or pin 13 on range selector defective (resistance measurement approx.

330 Ohm).

Check relay PTO 1 and/or PTO 2

ZF check impossible!

Replace range selector

Replace relay PTO 1 and/or PTO 2!

Check vehicle-end wiring!

ZF Friedrichshafen AG	ZF-ASTRONIC_1328_754_105_13, 14
LKS-T 2004-01

Iveco error number:	11, 31, 51

Error display:	In vehicle display:		11, 31, 51
	MobiDig/ Testman:		17, 49, 81
Error description:	Error 17	Short circuit to ground at output to valve Y1 (GB).
	Error 49	Interruption at output to valve Y1 (GB).
	Error 81	Short circuit to plus (+) at output to valve Y1 (GB).
Error detection:	By ECU hardware, if output is activated.
System response:	During travel, upshifts are handled just as downshifts. Input speed is
	synchronized by engine speed.
	Upshifts are inhibited if target speed is smaller than engine idling speed.
	Prolonged shift time. Stationary: Prolonged teach-in time. Prolonged shift
	time when shifting out of neutral. Prolonged shift time out of PTO mode.
	The automatic shift unit is deactivated. Driving in manual mode possible.
	In case of ZF error 81 (51), gear shifts are inhibited. Shifting into starting
	gears and driving off is possible.
	Follow-up error possible: ZF error number 155 (9B).

Error rectification:

Replace transmission actuator		Alternative solution
(in acc. with rep. manual)
(in acc. with rep. manual)

Disassemble transmission actuator

(upper-lower section)

Replace transmission actuator lower section

ZF Friedrichshafen AG	ZF-ASTRONIC_1328_754_105_17, 49, 81
LKS-T 2004-01

Iveco error number:	12, 32, 52

Error display:	In vehicle display:	12, 32, 52
	MobiDig/ Testman:	18, 50, 82
Error description:	Error 18: Short circuit to ground		Y17 valve clutch slowly opening.
	Error 50: Interruption.		Y17 valve clutch slowly opening.
	Error 82: Short circuit to plus (+)		Y17 valve clutch slowly opening.
Error detection:	By ECU hardware, if output is activated.
System response:	ECU output is deactivating. Two valves are responsible for opening and two
	valves are responsible for closing (fast, slow). If one Close/Open valve fails,
	this function is adopted by the other Close/Open valve. Reduced comfort
	when maneuvering and starting. If both closing and opening valve fail, the
	system is not available. The automatic shift unit is deactivated. Driving in
	manual mode possible.
	In case of error 82 gear shifting is completely inhibited. The system is not
	available. If the error occurs during travel, attempts are made to keep the
	clutch engaged. As soon as the vehicle comes to a standstill and the clutch
	opens, the system automatically shifts to neutral.

Error rectification:

Measurements at cable connector to

Ignition OFF

transmission actuator or in terminal tester.

Disconnect clutch actuator from

Resistance measurement Y17 valve clutch

transmission actuator and connect it to

slowly opening: Pin 9 (A) to Pin 16/17 (J)

terminal tester.

Bypass ground

Short circuit

to plus (+)

Short circuit

Interruption

to ground

Disconnect clutch actuator.

Ignition on

- Abort diagnosis and new start.

AS IS approx.

AS IS > 22 Ohm

Read out the error memory.

< 10 Ohm or

Replace clutch

0 Ohm

actuator

Replace clutch

Error interruption in error

actuator

memory

Replace clutch actuator

AS IS approx.

10 -20 Ohm

10 -22 Ohm

Error short circuit to plus (+) in

Contact ZF

the error memory

Replace transmission actuator

Note

Correct value = 15.6 Ohm. However, to take proper account of temperature-related factors and measurement errors and/or measurement conditions, ensure system stays within the above-mentioned tolerance limits!

ZF Friedrichshafen AG	ZF-ASTRONIC_1328_754_105_018,50,82
LKS-T 2003-06-25

Iveco error number:	13, 33, 53

Error display:	In vehicle display:	13, 33, 53
	MobiDig/ Testman:	19, 51, 83
Error description:	Error 19: Short circuit to ground Y15 valve clutch slowly closing.
	Error 51: Interruption Y15 valve clutch slowly closing.
	Error 83: Short circuit to plus (+) Y15 valve clutch slowly closing.
Error detection:	By ECU hardware, if output is activated.
System response:	ECU output is deactivating. Two valves are responsible for opening and two
	valves are responsible for closing (fast, slow). If one Close/Open valve fails,
	this function is adopted by the other Close/Open valve. Reduced comfort
	when maneuvering and starting. If both closing and opening valve fail, the
	system is not available. The automatic shift unit is deactivated. Driving in
	manual mode possible.
	In case of error 83 gear shifting is completely inhibited. The system is not
	available. If the error occurs during travel, attempts are made to keep the
	clutch engaged. As soon as the vehicle comes to a standstill and the clutch
	opens, the system automatically shifts to neutral.

Error rectification:

Ignition OFF

Measurements at cable connector to

Disconnect clutch actuator from

transmission actuator or in terminal tester.

transmission actuator and connect it to

Resistance measurement Y15 valve clutch

terminal tester.

slowly closing: Pin 7 (A) to Pin 16/17 (J)

Bypass ground

Short circuit

to plus (+)

Short circuit

Interruption

to ground

Disconnect clutch actuator.

Ignition on

- Abort diagnosis and new start.

AS IS approx.

AS IS > 22 Ohm

- Read out the error memory.

< 10 Ohm or

Replace clutch

0 Ohm

actuator

Replace clutch

Error interruption in error

actuator

memory

Replace clutch actuator

AS IS approx.

10 -20 Ohm

10 - 22 Ohm

Error short circuit to plus (+) in

Contact ZF

the error memory

Replace transmission actuator

Note

ZF Friedrichshafen AG	ZF-ASTRONIC_1328_754_105_019,51,83
LKS-T 2003-06-25

Iveco error number:

14, 34, 54

Error display:

In vehicle display:

14, 34, 54

MobiDig/ Testman:

20, 52, 84

Error description:

Error 20: Short circuit to ground Y16 valve, fast opening clutch.

Error 52: Interruption.

Error 84: Short circuit to plus (+)

Error detection:

By ECU hardware, if output is activated.

System response:

ECU output is deactivating. Two valves are responsible for opening and two

valves are responsible for closing (fast, slow). If one Close/Open valve fails,

this function is adopted by the other Close/Open valve. Reduced comfort

when maneuvering and starting. If both closing and opening valve fail, the

system is not available. The automatic shift unit is deactivated. Driving in

manual mode possible.

In case of error 84 gear shifting is completely inhibited. The system is not

available. If the error occurs during travel, attempts are made to keep the

clutch engaged. As soon as the vehicle comes to a standstill and the clutch

opens, the system automatically shifts to neutral.

Error rectification:

Ignition OFF

Measurements at cable connector to

Disconnect clutch actuator from

transmission actuator or in terminal tester.

transmission actuator and connect it to

Resistance measurement Y16 valve clutch

terminal tester.

slowly closing: Pin 12 (D) to Pin 16/17 (J)

Bypass ground

Short circuit

to plus (+)

Short circuit

Interruption

to ground

Disconnect clutch actuator.

Ignition on

AS IS approx.

- Abort diagnosis and new start.

AS IS > 22 Ohm

< 10 Ohm or

- Read out the error memory.

Replace clutch

0 Ohm

actuator

Replace clutch

Error interruption in error

actuator

memory

AS IS approx.

Replace clutch actuator

10 - 20 Ohm

10 - 22 Ohm

Contact ZF

Error short circuit to plus (+) in

the error memory

Replace transmission actuator

Note

ZF Friedrichshafen AG	ZF-ASTRONIC_1328_754_105_020,52,84
LKS-T 2003-06-25

Iveco error number:	15, 35, 55

Error display:	In vehicle display:	15, 35, 55
	MobiDig/ Testman:	21, 53, 85
Error description:	Error 21: Short circuit to ground Y14 valve clutch fast closing.
	Error 53: Interruption Y14 valve clutch fast closing.
	Error 85: Short circuit to plus (+) Y14 valve clutch fast closing.
Error detection:	By ECU hardware, if output is activated.
System response:	ECU output is deactivating. Two valves are responsible for opening and two
	valves are responsible for closing (fast, slow). If one Close/Open valve fails,
	this function is adopted by the other Close/Open valve. Reduced comfort

when maneuvering and starting. If both closing and opening valve fail, the system is not available. The automatic shift unit is deactivated. Driving in manual mode possible.

In case of error 85 gear shifting is completely inhibited. The system is not available. If the error occurs during travel, attempts are made to keep the clutch engaged. As soon as the vehicle comes to a standstill and the clutch opens, the system automatically shifts to neutral.

Error rectification:

Ignition OFF

Disconnect clutch actuator from transmission actuator and connect it to terminal tester.

Measurements at cable connector to transmission actuator or in terminal tester. Resistance measurement Y14 valve clutch slowly closing: Pin 8 (B) to pin 16/17 (J)

Bypass ground

Short circuit to ground

AS IS approx.

<10 Ohm or

0 Ohm

Replace clutch actuator

AS IS approx. 10 - 20 Ohm Contact ZF

Interruption

AS IS > 22 Ohm Replace clutch actuator

AS IS approx. 10 - 22 Ohm Contact ZF

Short circuit to plus (+)

-Disconnect clutch actuator.

-Ignition on

-Abort diagnosis and new start.

-Read out the error memory.

Error interruption in error memory

Replace clutch actuator

Error short circuit to plus (+) in the error memory

Replace transmission actuator

Note

ZF Friedrichshafen AG	ZF-ASTRONIC_1328_754_105_021,53,85 ZF-
LKS-T 2003-06-25

Iveco error number:	16, 36, 56
Iveco error number:	16, 36, 56
Error display:	In vehicle display:	16, 36, 56
	MobiDig/ Testman	22, 54, 86
Error description:	Error 22: Short circuit to ground at ADVP output.
	Error 54: Interruption at ADVP output.
	Error 86: Short circuit to plus (+) at ADVP output.
Error detection:	By ECU hardware.
System response:	Error 22, 54: During driving, gear shifts are inhibited.
	The clutch opens as soon as the vehicle comes to a standstill. When vehicle

stops, neutral position is automatically engaged. Other gear shifts not possible. System not available.

Notice: Regardless of the location where the short circuit is produced (whether at the n_ab1 sensor, range selector, on the GS (transmission actuator) or at a location at the wiring harness), with the current system configuration in place, this will result in the vehicle being stranded.

Error 86: System still available.

Error rectification:

ADVP pin 11 after ignition ON: Nominal: approx. 24 V

Wiring/Range selector

Iveco-end OK

Check ZF output speed sensor, sensor 1 (transmission wiring GS (transmission actuator)– KS (clutch actuator) – sensor).

Replace transmission actuator (in acc. with rep. manual)

Repair Iveco wiring/range selector

Replace/Repair output speed sensor

Repair/Replace ZF wiring

ZF Friedrichshafen AG	ZF-ASTRONIC_1328_754_105_22, 54, 86
LKS-T 2004-01

Iveco error number:	19
Iveco error number:	19
Error display:	In vehicle display:	19
	MobiDig/ Testman	25
Error description:	Short circuit to ground at SD output to display.
Error detection:	Repeated reading of the signal to be transferred.
System response:	”EE“ message flashing on display. No further system responses.

Error rectification:

MUX vehicles do not use this output!

Check wiring/plug transmission actuator pin 9 at vehicle-end.

Display (position/connection)

possibly check pin 1 to pin 3!

Internal defect at transmission actuator plug

Replace vehicle-end wiring.

Replace/Repair display.

Replace transmission actuator.

ZF Friedrichshafen AG	ZF-ASTRONIC_1328_754_105_25
LKS-T 2004-01

Iveco error number:	1A
Iveco error number:	1A
Error display:	In vehicle display:	1A
	MobiDig/ Testman:	26
Error description:	CAN engine configuration timeout.
Error detection:	An error is set after the message timeout.
System response:	The substitute signals saved in the control unit are used since there are no
	CAN message signals. Reduced function possible during automatic
	operations and starting gear calculation.
	Connecting speed for downshifts may be too low.
	Poor clutch opening possible when stopping.

Error rectification:

Message is generated in the EDC.
Check whether error is saved in		Error active?	Check fuse box
EDC (timeout).		Error active?	fuses!

Further errors saved to	Error saved in	Replace EDC
transmission electronic unit?	EDC?	(OEM)
transmission electronic unit?	EDC?	(OEM)
e.g. error 33/113/178


	Check EDC and/or
	Check EDC and/or	Error not saved
	engine speed	Error not saved
	engine speed	in EDC
	signal (OEM)	in EDC
	signal (OEM)

Software possibly old version;
program most recent version.

		EDC
		deactivation
Conduct CAN bus check as in case		relay defective?
of error 28 because this is a timeout
error!

ZF Friedrichshafen AG	ZF-ASTRONIC_1328_754_105_26
LKS-T 2004-01

Iveco error number:	1B
Iveco error number:	1B
Error display:	In vehicle display:	1B
	MobiDig/ Testman:	27
Error description:	Signal error engine configuration message.
Error detection:	No signal or signal defective.
System response:	The substitute signals saved in the control unit are used since there are no
	CAN message signals. Reduced function possible during automatic
	operations and starting gear calculation.

Connecting speed for downshifts may be too low.

Poor clutch opening possible when stopping.

Error rectification:

Message is generated in the EDC.

Check whether error is saved in

EDC (timeout).


Further errors saved to	Error saved in	Error not saved
transmission electronic unit?	EDC?	in EDC!
e.g. error 27, 31
e.g. error 27, 31


	Check EDC and/or	EDC
	engine speed	deactivation
	signal (OEM)	relay defective?


		Replace EDC
		(OEM)
Software possibly old version;
Software possibly old version;
program most recent version.

CAN bus check as in the case of error 28 because this is a timeout error!

ZF Friedrichshafen AG	ZF-ASTRONIC_1328_754_105_27
LKS-T 2004-01

ZF-ASTRONIC_1328_754_105_28

Iveco error number:	1C
Iveco error number:	1C
Error display:	In vehicle display:	1C
	MobiDig/ Testman	28
Error description:	Signal error "current driveline retarder torque percentage“
Error detection:	No signal or signal defective.
System response:	The automatic unit fails. Therefore, the drive resistance of the starting gear
	cannot be calculated. If vehicle comes to a standstill, mid-starting gear is
	selected. No other functional restrictions.

Error rectification:

Ignition off!

Connect terminal tester between transmission actuator (GS) and vehicle wiring.

CAN H	Pin 8 to GS
CAN L	Pin 12 to GS
CAN H+	Pin 14 from GS
CAN L+	Pin 13 from GS

Further CAN errors present (183, 184, etc.)?

Further Intarder errors (e.g. 27, 29)?

Check/Replace Intarder

electronics.

Ignition off!

CAN bus test with digital multimeter

Resistance measurement between CAN H and CAN L - ignition off!

Nominal:	60 Ohm
AS IS:	approx. 0 Ohm	Short circuit from CAN H to
		CAN L
AS IS:	approx. 120 Ohm	Connection to one terminator
		damaged.
AS IS: high ohm reading		CAN interrupted and/or both
		terminators damaged/not connected.

Start vehicle again.

ZF Friedrichshafen AG

LKS-T 2004-01

ZF-ASTRONIC_1328_754_105_29

Iveco error number:	1D
Iveco error number:	1D
Error display:	In vehicle display:	1D
	MobiDig/ Testman	29
Error description:	Signal error: "Engine cooling performance increase".
Error detection:	No signal or signal defective.
System response:	No downshift requests are issued by the Intarder so to increase the engine

speed for improving cooling performance!

Error rectification:

Ignition off!

Connect terminal tester between transmission actuator (GS) and

vehicle wiring.
CAN H	Pin 8 to GS
CAN L	Pin 12 to GS
CAN H+	Pin 14 from GS
CAN L+	Pin 13 from GS

Further CAN errors present (183, 184, etc.)?

Further Intarder errors (e.g. 27, 28)?

Check/Replace Intarder

electronics.

Ignition off!

CAN bus test with digital multimeter

Resistance measurement between CAN H and CAN L - ignition off!

Nominal:	60	Ohm
AS IS: approx.	0	Ohm	Short circuit from CAN H to
			CAN L
AS IS: approx.	120	Ohm	Connection to one terminator
			damaged.
AS IS: high ohm reading			CAN interrupted and/or both
			terminators damaged/not connected.

Start vehicle again.

ZF Friedrichshafen AG

LKS-T 2004-01

ZF-ASTRONIC_1328_754_105_30

Iveco error number:	1E
Iveco error number:	1E
Error display:	In vehicle display:	1E
	MobiDig/ Testman	30
Error description:	Signal error: "Driveline retarder configuration".
Error detection:	No signal or signal defective.
System response:	The automatic shift unit is deactivated. If vehicle comes to a standstill, mid-

starting gear is selected. No other functional restrictions.

Error rectification:

Ignition off!

Connect terminal tester between transmission actuator (GS) and

vehicle wiring.
CAN H	Pin 8 to GS
CAN L	Pin 12 to GS
CAN H+	Pin 14 from GS
CAN L+	Pin 13 from GS

Further CAN errors present (183, 184, etc.)?

Further Intarder errors (e.g. 27, 28)?

Check/Replace Intarder

electronics.

Ignition off!

CAN bus test with digital multimeter

Resistance measurement between CAN H and CAN L - ignition off!

Nominal:	60	Ohm
AS IS: approx.	0	Ohm	Short circuit from CAN H to
			CAN L
AS IS: approx.	120	Ohm	Connection to one terminator
			damaged.
AS IS: high ohm reading			CAN interrupted and/or both
			terminators damaged/not connected.

Start vehicle again.

ZF Friedrichshafen AG

LKS-T 2004-01

ZF-ASTRONIC_1328_754_105_31

Iveco error number:	1F
Iveco error number:	1F
Error display:	In vehicle display:	1F
	MobiDig/ Testman	31
Error description:	Signal error: "Present engine retarder torque percentage".
Error detection:	No signal or signal defective.
System response:	The automatic shift unit is deactivated. If vehicle comes to a standstill, mid-

starting gear is selected. No other functional restrictions. No information about the engine braking torque. If the engine brake is active, the shift quality may be reduced. It is assumed that the engine brake is not active.

Error rectification:

Ignition off!

Connect terminal tester between transmission actuator (GS) and

vehicle wiring.
CAN H	Pin 8 to GS
CAN L	Pin 12 to GS
CAN H+	Pin 14 from GS
CAN L+	Pin 13 from GS

Further CAN errors present (183, 184, etc.)?

Further Intarder errors (e.g. 27, 28)?

Check/Replace Intarder

electronics.

Ignition off!

CAN bus test with digital multimeter

Resistance measurement between CAN H and CAN L - ignition off!

Nominal:	60	Ohm
AS IS: approx.	0	Ohm	Short circuit from CAN H to
			CAN L
AS IS: approx.	120	Ohm	Connection to one terminator
			damaged.
AS IS: high ohm reading			CAN interrupted and/or both
			terminators damaged/not connected.

Start vehicle again.

ZF Friedrichshafen AG

LKS-T 2004-01

ZF-ASTRONIC_1328_754_105_32

Iveco error number:	20
Iveco error number:	20
Error display:	In vehicle display:	20
	MobiDig/ Testman	32
Error description:	Signal error: "Engine retarder configuration".
Error detection:	No signal or signal defective.
System response:	The automatic shift unit is deactivated. If vehicle comes to a standstill, mid-

starting gear is selected. No other functional restrictions.

Error rectification:

Ignition off!

Connect terminal tester between transmission actuator (GS) and vehicle wiring.

CAN H	Pin 8 to GS
CAN L	Pin 12 to GS
CAN H+	Pin 14 from GS
CAN L+	Pin 13 from GS

Further CAN errors present (183, 184, etc.)?

Further Intarder errors (e.g. 27, 28)?

Check/Replace Intarder

electronics.

Ignition off!

CAN bus test with digital multimeter

Resistance measurement between CAN H and CAN L - ignition off!

Nominal:	60	Ohm
AS IS: approx.	0	Ohm	Short circuit from CAN H to
			CAN L
AS IS: approx.	120	Ohm	Connection to one terminator
			damaged.
AS IS: high ohm reading			CAN interrupted and/or both
			terminators damaged/not connected.

Start vehicle again.

ZF Friedrichshafen AG

LKS-T 2004-01

ZF-ASTRONIC_1328_754_105_33

Iveco error number:	21
Iveco error number:	21
Error display:	In vehicle display:	21
	MobiDig/ Testman	33
Error description:	CAN timeout "Motor Retarder configuration".
Error detection:	An error is set after the message timeout.
System response:	The automatic shift unit is deactivated. If vehicle comes to a standstill, mid-
	starting gear is selected. No other functional restrictions.

Error rectification:

Ignition off!

Connect terminal tester between transmission actuator (GS) and vehicle wiring.

CAN H	Pin 8 to GS
CAN L	Pin 12 to GS
CAN H+	Pin 14 from GS
CAN L+	Pin 13 from GS

Further Intarder errors (e.g. 27, 28)?

Check/Replace Intarder

electronics.

Start vehicle again.

Check fuse box fuses!

Error active?

Further CAN errors present (26, 178, 183, 184, etc.)?

Ignition off!

CAN bus test with digital multimeter

Resistance measurement between CAN H and CAN L - ignition off!

Nominal:	60	Ohm
AS IS: approx.	0	Ohm	Short circuit from CAN H to
			CAN L
AS IS: approx.	120	Ohm	Connection to one terminator
			damaged.
AS IS: high ohm reading			CAN interrupted and/or both
			terminators damaged/not connected.

ZF Friedrichshafen AG

LKS-T 2004-01

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