ISUZU 4HK1, 4JJ1 User Manual
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Isuzu truck N-series fault codes
Diagnostic flash codes for Isuzu engines 4HK1 and 4JJ1
Fault code
Flash code
DTCs description
P0016
16
inconsistency of crankshaft position sensor's signal and camshaft.
P0045
33
P0079
38
P0080
38
P0087
225
overpressure in the fuel distribution line
P0088
118
overpressure in the fuel distribution line
P0089
151
overpressure in the fuel distribution line
P0091
247
defective gauge or sensor circuit fuel adjustment
P0092
247
defective gauge or sensor circuit fuel adjustment
P0093
227
low pressure in the fuel distribution line
P0101
92
mass air flow sensor voltage does not match the calculated value
P0102
91
mass air flow sensor voltage out of range
P0103
91
mass air flow sensor voltage out of range
P0107
32
mass air flow sensor voltage does not match the calculated value
P0108
32
mass air flow sensor voltage does not match the calculated value
P0112
22
P0113
22
P0116
23
Faulty coolant temperature sensor
P0117
23
Coolant temperature sensor out of range
P0118
23
Coolant temperature sensor out of range
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P0122
43
P0123
43
P0182
211
Fuel temperature sensor out of range
P0183
211
Fuel temperature sensor out of range
P0192
245
Fuel pressure sensor out of range
P0193
245
Fuel pressure sensor out of range
P0201
271
Injector circuit malfunction 1
P0202
271
Injector circuit malfunction 2
P0203
271
Injector circuit malfunction 3
P0204
271
Injector circuit malfunction 4
P0217
542
excess motor temperature
P0219
543
exceeding of the speed rotation of the INTERNAL-COMBUSTION
ENGINE
P0234
42
excess pressure adjuster
P0299
65
low boost pressure
P0335
15
missing crankshaft position sensor signal
P0336
15
crankshaft sensor malfunction or malfunction of the handwheel
P0340
14
no signal camshaft sensor
P0341
14
camshaft sensor malfunction or camshaft
P0380
66
ignition heater circuit out of range
P0381
66
control circuit test light candles glow out of range
P0401
93
P0404
45
P0409
44
P0426
143
P0427
48
P0428
48
P042B
145
P042C
49
P042D
49
P0477
46
Relay mountain chain brake is out of range
P0478
46
Relay mountain chain brake is out of range
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