Illustration 45 Schematic for Lamp

172

TM 9-2320-312-24-2

Troubleshooting Section

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Illustration 45

Schematic for Lamp

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Illustration 46

Terminal locations for ECM

Test Step 1. Inspect Electrical Connectors

Refer to Illustration 46.

and Wiring.

C. Check the ECM connector (allen head screw) for

the proper torque of 6.0 Nm (55 lb in).

A. Thoroughly inspect ECM vehicle harness

connector J1/P1, the firewall bulkhead connector,

D. Check the harness and wiring for abrasion and

and the check engine lamp (terminal 28). Refer

pinch points from the battery to the ECM.

to Troubleshooting, "Electrical Connectors -

Inspect" for details.

B. Perform a 45 N (10 lb) pull test on each of the

wires in the ECM connector that are associated

with the check engine lamp.