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Autodata - Diagnostic Trouble Codes Fault locations and probable causes - 2004 edition

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I<br />

Engine managemenUtransrnission I $Iz4 .)<br />

10<br />

20<br />

30<br />

50<br />

60<br />

90<br />

Ill<br />

112<br />

Cylinder 1, low<br />

Cylinder 2, low<br />

Cylinder 3, low<br />

I Cylinder 4, low<br />

Cylinder 5, low<br />

Cylinder 6, low<br />

Cylinder balance test OK<br />

Systems OK<br />

Intake air temperature (IAT) sensor - voltage low<br />

I Probable cause<br />

Cylinder compression, ignition<br />

components, injector<br />

Cylinder compression, ignition<br />

components, injector<br />

Cylinder compression, ignition<br />

components, injector<br />

Cylinder compression, ignition<br />

components, injector<br />

Cylinder compression, ignition<br />

components, injector<br />

11 3 I Intake air temperature (IAT) sensor - voltage high I Wiring, IAT sensor, ECM<br />

114<br />

116<br />

Intake air temperature (IAT) sensor - range<br />

Engine coolant temperature (ECT) sensor - range<br />

Cylinder compression, ignition<br />

components, injector<br />

117 I Engine coolant temperature (ECT) sensor - voltage low I Wiring, ECT sensor, ECM<br />

118 I Engine coolant temperature (ECT) sensor - voltage high I Wiring, ECT sensor, ECM<br />

121<br />

122<br />

Throttle position (TP) switchlsensor - range<br />

Throttle position (TP) switchlsensor - voltage low<br />

-<br />

-<br />

Wiring, IAT sensor, ECM<br />

IAT sensor<br />

ECT sensor<br />

123 I Throttle position (TP) switchlsensor - voltage high I Wiring, TP switchlsensor, ECM<br />

124 I Throttle position (TP) switchlsensor - voltage high I Wiring, TP switchlsensor, ECM<br />

125 I Throttle position (TP) switchlsensor - voltage low 1 Wiring, TP switchlsensor, ECM<br />

Mass air flow (MAF) sensorlmanifold absolute pressure (MAP)<br />

sensor - no signal change during throttle 'blip'<br />

TP switchlsensor<br />

Wiring, TP switchlsensor, ECM<br />

Mass air flow (MAF) sensorlmanifold<br />

absolute pressure (MAP) sensor<br />

136 I Heated oxygen sensor (H02S) 2, bank 2 - weak mixture I Wiring, H02S, ECM<br />

137 I Heated oxygen sensor (H02S) 2, bank 2 - rich mixture I Wiring, H02S, ECM<br />

139<br />

144<br />

Heated oxygen sensor (H02S) 2, bank 2 - weak/rich mixture<br />

Heated oxygen sensor (H02S) 1, bank 1 - weak/rich mixture<br />

Wiring, H02S, ECM<br />

Wiring, H02S, ECM<br />

157 I Mass air flow (MAF) sensor - voltage low ( Wiring, MAF sensor, ECM<br />

158 I Mass air flow (MAF) sensor - voltage high I Wiring, MAF sensor, ECM<br />

159<br />

167<br />

Mass air flow (MAF) sensor - range<br />

Wiring, MAF sensor, ECM<br />

Throttle position (TP) switchlsensor - no signal change during TP switchlsensor<br />

throttle 'blip'<br />

Heated oxygen sensor (H02S) 1, bank 1 - adaptive limit reached Fuel pressure, wiring, air leaks, injectors,<br />

I ECM<br />

172 I Heated oxyqen sensor (H02S) 1, bank 1 - weak mixture I Wiring, H02S, ECM<br />

173 I Heated oxygen sensor (H02S) 1, bank 1 - rich mixture I Wiring, H02S, ECM<br />

Heated oxygen sensor (H02S) 2, bank 2 - adaptive limit reached Fuel pressure, wiring, air leaks, injectors,<br />

I ECM<br />

174 I Heated oxygen sensor (H02S) I Wiring, H02S, ECM<br />

176 I Heated oxygen sensor (H02S) 2, bank 2 - weak mixture I Wiring, H02S, ECM

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