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Trouble Godes - diagramas.diagram...

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Engine management<br />

General information<br />

Refer to the front of this manual for general test conditions,<br />

terminology, detailed descriptions of wiring faults and a<br />

general trouble shooter for electrical and mechanical faults.<br />

Accessing - +2001<br />

The engine control module (ECM) fault memory can only be<br />

accessed using diagnostic equipment connected to the data<br />

link connector (DLC).<br />

<strong>Trouble</strong> code identification<br />

EOBD<br />

type<br />

PO<br />

PI192<br />

PI 193<br />

PI 195<br />

PI196<br />

Fault location<br />

Refer to EOBD trouble code table<br />

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

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

Heated oxygen sensor (H02S) 1, bank 1 - slow<br />

response<br />

Heated oxygen sensor (H02S) 2, bank 1 - slow<br />

response<br />

Model: Voyager 2,4/3,3/3,8 Grand Voyager 2,4/3,3/3,8<br />

Year: 1999-02<br />

Engine code: EDZ, EGA, EGM, EGH<br />

System: SBEC Ill<br />

Accessing - 2001 +<br />

Within 5 seconds switch ignition ON-OFF-ON-OFF-ON.<br />

Odometer will display trouble codes.<br />

If no trouble codes are stored in ECM, odometer will display<br />

'P1684' and 'done' or only 'done'.<br />

The engine control module (ECM) fault memory can also be<br />

accessed using diagnostic equipment connected to the data<br />

link connector (DLC).<br />

Erasing<br />

The engine control module (ECM) fault memory can only be<br />

erased using diagnostic equipment connected to the data<br />

link connector (DLC).<br />

PI281 Engine temperature low for long period Wiring, engine cooling system, coolant thermostat,<br />

ECT sensor<br />

PI282 [ Fuel pump relay I Wiring open circuitlshort circuit, fuel pump relay<br />

Compressed natural gas pressure sensor -<br />

pressure high<br />

Probable cause<br />

-<br />

Wiring, IAT sensor<br />

Wiring, IAT sensor<br />

Heating inoperative, wiring, H02S<br />

Heating inoperative, wiring, H02S<br />

Compressed natural gas system, wiring, compressed<br />

natural gas pressure sensor

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