Mazda 626 1997 User Manual

mazda :: Mazda 626 ES V6-2.5L DOHC (1997)

> Relays and Modules > Relays and Modules - Accessories and Optional Equipment > Central Control Module > Component Information > Locations > I-5a

Connector Locations

> Relays and Modules > Relays and Modules - Accessories and Optional Equipment > Central Control Module > Component Information > Locations > I-5a > Page 8

Connector Locations

> Relays and Modules > Relays and Modules - Accessories and Optional Equipment > Central Control Module > Component Information > Diagrams > Diagram Information and Instructions

Central Control Module: Diagram Information and Instructions

Wiring Color Code

.............................................................................................................................................................................................................................Color Code

Blue....................................................................................................................................................................................................................................... LBlack.................................................................................................................................................................................................................................... BBrown................................................................................................................................................................................................................................ BRDark Blue........................................................................................................................................................................................................................... DLDark Green........................................................................................................................................................................................................................ DGGreen.................................................................................................................................................................................................................................... GGray................................................................................................................................................................................................................................... GYLight Blue.......................................................................................................................................................................................................................... LBLight Green........................................................................................................................................................................................................................ LGNatural.................................................................................................................................................................................................................................. NOrange.................................................................................................................................................................................................................................. OPink....................................................................................................................................................................................................................................... PRed....................................................................................................................................................................................................................................... RPurple................................................................................................................................................................................................................................. PUSky Blue ............................................................................................................................................................................................................................ SBTan........................................................................................................................................................................................................................................ TWhite................................................................................................................................................................................................................................... WYellow.................................................................................................................................................................................................................................. YViolet.................................................................................................................................................................................................................................... V

Ground Points

> Relays and Modules > Relays and Modules - Accessories and Optional Equipment > Central Control Module > Component Information > Diagrams > Diagram Information

and Instructions > Page 11

626 ES V6-2.5L DOHC (1997)

> Relays and Modules > Relays and Modules - Accessories and Optional Equipment > Central Control Module > Component Information > Diagrams > Diagram Information

and Instructions > Page 12

626 ES V6-2.5L DOHC (1997)

Ground Points

^ This shows ground points of the harness.

System Circuit Diagram/Connector Diagram

System Circuit Diagram/Connector Diagram (Part 1 Of 2)

> Relays and Modules > Relays and Modules - Accessories and Optional Equipment > Central Control Module > Component Information > Diagrams > Diagram Information

and Instructions > Page 13

626 ES V6-2.5L DOHC (1997)

> Relays and Modules > Relays and Modules - Accessories and Optional Equipment > Central Control Module > Component Information > Diagrams > Diagram Information

and Instructions > Page 14

626 ES V6-2.5L DOHC (1997)

System Circuit Diagram/Connector Diagram (Part 2 Of 2)

^

OFF

These diagrams show the circuits for each system, from the power supply to the ground. The power supply side is on the upper part of the image,the ground side on the lower part. The diagrams describe circuits with the ignition switch .The explanation of the various points is shown in the images.

Routing Diagram

Routing Diagram

^ The routing diagram shows where electrical components are on the system circuit diagram by call out line and connector symbols.

Harness Symbols

............................................................................................................................................................................................Description of Harness Symbol

> Relays and Modules > Relays and Modules - Accessories and Optional Equipment > Central Control Module > Component Information > Diagrams > Diagram Information

and Instructions > Page 15

626 ES V6-2.5L DOHC (1997)

Front Harness .................................................................................................................................................................................................................... (F)Front No.2 Harness.......................................................................................................................................................................................................... (F2)Engine Harness.................................................................................................................................................................................................................. (E)Dash Harness .................................................................................................................................................................................................................... (D)Rear Harness...................................................................................................................................................................................................................... (R)Rear No.2 Harness........................................................................................................................................................................................................... (R2)Rear A Harness............................................................................................................................................................................................................... (RA)Instrument Panel Harness ................................................................................................................................................................................................... (I)Emission Harness .......................................................................................................................................................................................................... (EM)Emission No.2 Harness................................................................................................................................................................................................. (EM2)Emission No.3 Harness................................................................................................................................................................................................. (EM3)

Door No.1 Harness....................................................................................................................................................................................................... (DR1)Door No.2 Harness ...................................................................................................................................................................................................... (DR2)Door No.3 Harness ...................................................................................................................................................................................................... (DR3)Door No.4 Harness ...................................................................................................................................................................................................... (DR4)Floor Harness .................................................................................................................................................................................................................. (FR)Interior Light Harness ..................................................................................................................................................................................................... (IN)A/C Harness ................................................................................................................................................................................................................... (AC)

> Relays and Modules > Relays and Modules - Accessories and Optional Equipment > Central Control Module > Component Information > Diagrams > Diagram Information

and Instructions > Page 16

626 ES V6-2.5L DOHC (1997)

Symbols (Part 1 Of 2)

> Relays and Modules > Relays and Modules - Accessories and Optional Equipment > Central Control Module > Component Information > Diagrams > Diagram Information

and Instructions > Page 17

626 ES V6-2.5L DOHC (1997)

Symbols (Part 2 Of 2)

Logic Symbols

> Relays and Modules > Relays and Modules - Accessories and Optional Equipment > Central Control Module > Component Information > Diagrams > Diagram Information and Instructions > Page 18

Central Control Module: Connector Views

> Relays and Modules > Relays and Modules - Accessories and Optional Equipment > Central Control Module > Component Information > Diagrams > Diagram Information

and Instructions > Page 19

626 ES V6-2.5L DOHC (1997)

Central Processing Unit (CPU), Theft Deterrent System- Connectors

Central Processing Unit (CPU), Theft-Deterrent System- Connectors

> Relays and Modules > Relays and Modules - Accessories and Optional Equipment > Central Control Module > Component Information > Diagrams > Diagram Information and Instructions > Page 20

Central Control Module: Electrical Diagrams

> Relays and Modules > Relays and Modules - Accessories and Optional Equipment > Central Control Module > Component Information > Diagrams > Diagram Information

and Instructions > Page 21

626 ES V6-2.5L DOHC (1997)

Central Processing Unit (CPU), Theft Deterrent System

Central Processing Unit (CPU), Theft-Deterrent System

> Relays and Modules > Relays and Modules - Accessories and Optional Equipment > General Module > Component Information > Locations

> Relays and Modules > Relays and Modules - Accessories and Optional Equipment > General Module > Component Information > Locations > Page 25

General Module: Description and Operation

^ The CPU is attached to the joint box near the driver's feet.
^ A microcomputer is used by the CPU to control all electrical component functions, thus increasing reliability.

> Relays and Modules > Relays and Modules - Accessories and Optional Equipment > General Module > Component Information > Locations > Page 26

General Module: Testing and Inspection

Inspection

Connector A

1. Remove the CPU from the joint box.2. Measure the voltage at the CPU terminals from the joint box side, referring to the terminal voltage list below.3. If not as specified, inspect the parts listed under "Inspection area" and the related wiring harnesses.4. If the parts and wiring harnesses are OK but the system still does not work properly, replace the CPU.

Connector B

1. Follow the appropriate procedure, referring to the terminal voltage list below.

Terminals 2H (MX-6 only), 2N, and 2T

1. Disconnect the CPU connector.2. Check for continuity between the terminals of the CPU connector and ground.

Terminals except 2H (MX-6 only), 2N, and 2T

1. Reconnect the CPU connector.2. Install the CPU onto the joint box.3. Measure the voltage at the CPU terminals.

> Relays and Modules > Relays and Modules - Accessories and Optional Equipment > General Module > Component Information > Locations > Page 27

626 ES V6-2.5L DOHC (1997)

2. If not as specified, inspect the parts listed under "Inspection area" and the related wiring harnesses.3. If the parts and wiring harnesses are OK but the system still does not work properly, replace the CPU.

Terminal Voltage

> Relays and Modules > Relays and Modules - Accessories and Optional Equipment > General Module > Component Information > Locations > Page 28

626 ES V6-2.5L DOHC (1997)

> Relays and Modules > Relays and Modules - Accessories and Optional Equipment > General Module > Component Information > Locations > Page 29

626 ES V6-2.5L DOHC (1997)

Terminal Voltage (1 Of 2)

Terminal Voltage (2 Of 2)

Terminal voltage list

> Relays and Modules > Relays and Modules - Accessories and Optional Equipment > General Module > Component Information > Locations > Page 30

General Module: Service and Repair

Removal/Installation

1. Disconnect the negative battery cable.2. Remove the scuff plate and front side trim.3. Remove in the order shown in the figure.4. Install in the reverse order of removal.

> Relays and Modules > Relays and Modules - Accessories and Optional Equipment > Ignition Shut Down Relay (For Antitheft) > Component Information > Testing and Inspection

Ignition Shut Down Relay (For Antitheft): Testing and Inspection
Inspection

1. Remove the starter cut relay.

Terminal Identification

Reference

2. Apply battery positive voltage and check for continuity between the terminals of the starter cut relay.3. If not as specified, replace the starter cut relay.

> Relays and Modules > Relays and Modules - Body and Frame > Power Door Lock Control Module > Component Information > Testing and Inspection

Power Door Lock Control Module: Testing and Inspection
Inspection

1. Measure the voltage at the terminals of the door lock timer unit as indicated below.2. If not as specified, replace the door lock timer unit.

Without keyless entry system

With keyless entry system

> Relays and Modules > Relays and Modules - Body and Frame > Sunroof / Moonroof Relay > Component Information > Testing and Inspection

Sunroof / Moonroof Relay: Testing and Inspection
Inspection

1. Disconnect the sunroof relay connector.

Terminal Identification

Reference

2. Apply battery positive voltage and check for continuity between the relay terminals.3. If not as specified, replace the sunroof relay.

> Relays and Modules > Relays and Modules - Body and Frame > Trunk / Liftgate Relay > Component Information > Testing and Inspection

Trunk / Liftgate Relay: Testing and Inspection

Terminal Identification

Reference

Inspection

1. Remove the trunk lid opener relay. 2. Apply battery voltage and check for continuity between the relay terminals.3. If not as specified, replace the trunk lid opener relay.

> Relays and Modules > Relays and Modules - Body and Frame > Trunk / Liftgate Relay > Component Information > Testing and Inspection > Page 44

Trunk / Liftgate Relay: Service and Repair

Removal / Installation

1. Disconnect the negative battery cable.2. Remove the trunk side trim.3. Remove as shown in the figure.4. Install in the reverse order of removal.

> Relays and Modules > Relays and Modules - Brakes and Traction Control > ABS Main Relay > Component Information > Specifications

ABS Main Relay: Specifications
TIGHTENING SPECIFICATIONS

Mounting Bolt ................................................................................................................................................................... 6.9-9.8 Nm (61-86.7 inch. lbs.)

> Relays and Modules > Relays and Modules - Brakes and Traction Control > ABS Main Relay > Component Information > Testing and Inspection > Fail-Safe Relay

ABS Main Relay: Testing and InspectionFail-Safe Relay

1. Measure the resistance between terminals C and D of the ABS relay connector.
^

Resistance: .60-100 ohms

2. Check for continuity between terminals A and E and between B and E.

- There is continuity between A and E.

- There is no continuity between band E.

3. Apply 12 V between terminals D and C. Check for continuity between terminals A and E and between B and E.

- There is continuity between B and E.

- There is no continuity between A and E.

> Relays and Modules > Relays and Modules - Brakes and Traction Control > ABS Main Relay > Component Information > Testing and Inspection > Fail-Safe Relay > Page 51

ABS Main Relay: Testing and InspectionMotor Relay

1. Measure the resistance between terminals E and H, or between A and H of ABS relay connector.
^

Resistance: 5-9 ohms

2. Check for continuity between terminals B and F. There should not be continuity between them.3. Apply 12 V to terminals G (+) and H (-). Check for continuity between terminals B and F. There should be continuity between terminals B-F.4. If not as specified, replace the ABS relay.

> Relays and Modules > Relays and Modules - Brakes and Traction Control > ABS Main Relay > Component Information > Testing and Inspection > Fail-Safe Relay > Page 52

ABS Main Relay: Testing and InspectionFail-Safe Relay Harness

1. Turn the ignition switch OFF and disconnect the ABS control module connector (18 pin).2. Turn the ignition switch ON.3. Connect terminal 2J of the control module connector (18 pin) to a ground.4. Check the following points:
^

If the fail-safe relay in ABS relay does not click when terminal 2J is grounded.-

Check fail-safe relay

- Check harness between fail safe relay and ABS control module.

^

If Warning light illuminates after grounding terminal 2J.-

Check fail-safe relay.

^

If terminal 1D of ABS control module connector does not indicate 12V.-

Check fail-safe relay.

- Check harness between fail safe relay and ABS hydraulic unit.

> Relays and Modules > Relays and Modules - Brakes and Traction Control > ABS Main Relay > Component Information > Testing and Inspection > Fail-Safe Relay > Page 53

ABS Main Relay: Testing and InspectionMotor Relay Harness

1. Inspect the fail-safe relay.2. Turn the ignition switch OFF and disconnect the ABS control module connector (18 pin).3. Turn the ignition switch ON.4. Connect terminal 2J to a ground.5. Connect terminal 2H to a ground.6. Check the following points:

CAUTION:

Allowing the ABS motor to operate for more than two seconds will cause it to overheat and become damaged. When checking theABS motor and its related equipment, do not allow the ABS motor to operate for more than two seconds.
^

Motor relay in ABS relay does not click when terminals are relay and ABS control module grounded -

Check harness between motor

- Check motor relay

^

ABS motor does not operate -

Check motor relay

- Check harness between motor relay and ABS motor Check fuse

7. If not as specified, replace the ABS relay.

> Relays and Modules > Relays and Modules - Brakes and Traction Control > ABS Main Relay > Component Information > Testing and Inspection > Page 54

ABS Main Relay: Service and Repair

REPLACEMENT

1. Disconnect the negative battery cable.2. Remove in the order shown in the figure.3. Install in the reverse order of removal.4. Connect the negative battery cable and verify that the diagnostic trouble codes have been canceled. See: Brakes and Traction Control/Antilock
Brakes / Traction Control Systems/Testing and Inspection

> Relays and Modules > Relays and Modules - Brakes and Traction Control > Electronic Brake Control Module > Component Information > Specifications

Electronic Brake Control Module: Specifications
TIGHTENING SPECIFICATIONS

Mounting Nuts ........................................................................................................................................................................................ 11 Nm (8 ft. lbs.)

> Relays and Modules > Relays and Modules - Brakes and Traction Control > Electronic Brake Control Module > Component Information > Specifications > Page 58

Electronic Brake Control Module: Diagrams

> Relays and Modules > Relays and Modules - Brakes and Traction Control > Electronic Brake Control Module > Component Information > Specifications > Page 59

626 ES V6-2.5L DOHC (1997)

> Relays and Modules > Relays and Modules - Brakes and Traction Control > Electronic Brake Control Module > Component Information > Testing and Inspection > Motor Harness at Control Module Check

Electronic Brake Control Module: Testing and InspectionMotor Harness at Control Module Check

1. Turn the ignition switch OFF, and disconnect the ABS control module connector (12 pin).2. Measure the resistance between 1L terminal of the control module connector and ground.
^

Resistance: .1 ohm max

3. If not as specified, check the wiring harness between the ABS motor and the control module for open or short circuit and check the ABS motor.
See: Brakes and Traction Control/Antilock Brakes / Traction Control Systems/Hydraulic Control Assembly - Antilock Brakes/Testing andInspection

> Relays and Modules > Relays and Modules - Brakes and Traction Control > Electronic Brake Control Module > Component Information > Testing and Inspection > Motor Harness at Control Module Check > Page 62

Electronic Brake Control Module: Testing and InspectionSolenoid Valve Harness at Control Module Check

1. Turn the ignition switch OFF.2. Measure the resistance between a ground and the following terminals at the ABS control module connector (12 pin).
^

Terminal:1A, Right rear1B, Left front1C, Right front1D, Left rear

^

Resistance: .2-5 ohms

3. If not as specified, check the wiring harness between the ABS hydraulic unit connector (8 pin) and the ABS control module for open or short
circuit.

> Relays and Modules > Relays and Modules - Brakes and Traction Control > Electronic Brake Control Module > Component Information > Testing and Inspection > Page 63

Electronic Brake Control Module: Service and Repair

REPLACEMENT

1. Disconnect the negative battery cable.2. Remove in the order shown in the figure.3. Install in the reverse order of removal.4. Connect the negative battery cable and verify that the diagnostic trouble codes have been canceled. See: Brakes and Traction Control/Antilock
Brakes / Traction Control Systems/Testing and Inspection

> Relays and Modules > Relays and Modules - Cooling System > Radiator Cooling Fan Motor Relay > Component Information > Description and Operation

Radiator Cooling Fan Motor Relay: Description and Operation
COOLING FAN RELAY

Supplies/cuts off battery power to cooling fan.^

Normal open type.

^ Actuated by PCM cooling fan control signal.

> Relays and Modules > Relays and Modules - Cooling System > Radiator Cooling Fan Motor Relay > Component Information > Description and Operation > Page 68

Radiator Cooling Fan Motor Relay: Testing and Inspection

COOLING FAN RELAY REMOVAL

1. Disconnect the negative battery cable.2. Remove the cooling fan relay from the place shown in the figure.

COOLING FAN RELAY INSPECTION

1. Check continuity of the cooling fan relay as shown.

2. Apply battery positive voltage between terminals B and D.Check for continuity between terminals A and C.3. If not as specified, replace the cooling fan relay.

> Relays and Modules > Relays and Modules - Cooling System > Radiator Cooling Fan Motor Relay > Component Information > Description and Operation > Page 69

Radiator Cooling Fan Motor Relay: Service and Repair

COOLING FAN RELAY REMOVAL

1. Disconnect the negative battery cable.2. Remove the cooling fan relay from the place shown in the figure.

> Relays and Modules > Relays and Modules - Cruise Control > Cruise Control Module > Component Information > Testing and Inspection

Cruise Control Module: Testing and Inspection

Inspection

1. Pull out the cruise control module with the cruise control module connector connected. 2. Measure the voltage at the cruise control module terminals as indicated.3. If not as specified, inspect the parts listed under "Inspection area" and the related wiring harnesses.4. If the parts and wiring harnesses are OK but the system still does not work properly, replace the cruise control module.

> Relays and Modules > Relays and Modules - Cruise Control > Cruise Control Module > Component Information > Testing and Inspection > Page 74

626 ES V6-2.5L DOHC (1997)

Part 1 Of 2

Part 2 Of 2

Terminal voltage list

> Relays and Modules > Relays and Modules - Cruise Control > Cruise Control Module > Component Information > Testing and Inspection > Page 75

Cruise Control Module: Service and Repair

Removal / Installation

1. Remove in the order shown in the figure.2. Install in the reverse order of removal.3. After installing the cruise control module, verify that the cruise set indicator light in the instrument cluster illuminates when the ignition switch and
cruise control main switch are on.

> Relays and Modules > Relays and Modules - HVAC > Blower Motor Relay > Component Information > Locations > Component Locations

Blower Motor Relay

> Relays and Modules > Relays and Modules - HVAC > Blower Motor Relay > Component Information > Locations > Component Locations > Page 81

Heating & A/C Connectors

> Relays and Modules > Relays and Modules - HVAC > Blower Motor Relay > Component Information > Locations > Page 82

Blower Motor Relay: Testing and Inspection
Inspection

Blower relay

Blower Motor Relay

Blower Motor Relay Continutiy

KL engine

Blower Motor Relay

Blower Motor Relay Continuity

FS engine

1. Remove the relay.2. Connect battery positive voltage and check for continuity between the relay terminals as indicated above.3. If not as specified, replace the relay.

> Relays and Modules > Relays and Modules - HVAC > Compressor Clutch Relay > Component Information > Testing and Inspection

Compressor Clutch Relay: Testing and Inspection
A/C Relay Inspection

1. Remove the relay.

2. Connect battery positive voltage and check for continuity between the relay terminals as indicated above.

> Relays and Modules > Relays and Modules - HVAC > Condenser Fan Motor Relay, HVAC > Component Information > Description and Operation

Condenser Fan Motor Relay: Description and Operation
CONDENSER FAN RELAY

Supplies/cuts off battery power to condenser fan.-

Normal open type.

- Actuated by PCM condenser fan control signal.

> Relays and Modules > Relays and Modules - HVAC > Condenser Fan Motor Relay, HVAC > Component Information > Description and Operation > Page 89

Condenser Fan Motor Relay: Testing and Inspection
Inspection

1. Remove the relay.2. Connect battery positive voltage and check for continuity between the relay terminals as indicated above.

3. If not as specified, replace the relay.
Condenser tan low relay, high relay No.1 and No.2