5/38371

Fault code 5/38371





Malfunction indicated
Injectors malfunctioning

Fault symptom
Poor driveablity, engine misfires.
CHECK ENGINE lamp alight.

Test procedure

Note: The fault may also be due to lack of sparking in one of the cylinders. It may therefore be necessary to carry out fault diagnosis on the ignition system.

1 With the ignition switch in the Drive position, enter command code 552 on the ISAT. Check that all injectors are working (15 Hz) by listening to them. If the injectors are working, continue fault diagnosis but be alert to the possibility of intermittent faults.

2 With the ignition switch in the Drive position, check whether battery voltage is present on pin 1 of each injector connector. If it is not, check the BU/RD lead between pin 1 of each connector and pin 87 of the main relay for continuity/shorting.

3 With the connectors unplugged, measure the resistance across the connecting pins of the injectors.

It should be 10-20 ohms.

If any of the injectors does not have this resistance, fit a new injector.

4 With the ignition switched off and the control module disconnected, check the GN/RD lead between pin 2 on each injector and pin 18 of the connector for continuity/shorting.

5 If the fault still persists, try a new control module.