Test Step 1. Inspect Electrical Connectors and Wiring -807640450

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TM 9-2320-312-24-2

Troubleshooting Section

D. Check the harness and the wiring for abrasion

and pinch points from the battery to the ECM.

Then, check from the ignition key switch to the

ECM.

Refer to Illustration 104 for terminal locations

for the ECM.

Expected Result:

All connectors, pins, and sockets are completely

coupled and/or inserted, and the harness and

wiring should be free of corrosion, abrasion or pinch

points.

Results:

OK Proceed to Test Step 2.

Not OK

Repair: Repair the wiring and connectors or

replace the wiring or the connectors. Ensure that

all of the seals are properly connected. Verify that

the repair eliminates the problem.

STOP.

Test Step 2. Check the Switch Circuit for

the ECM

g00890806

Illustration 104

Terminal locations for ECM connector P1

Test Step 1. Inspect Electrical Connectors

and Wiring

A. Thoroughly inspect the ECM vehicle harness

connector J1/P1, the connectors, and the firewall

bulkhead connectors. Refer 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 torque limit switch.

The wires are on the following terminals:

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Illustration 105

P1:7

A. Turn the ignition key switch to the OFF position.

P1:18

B. Install a 140-2266 Cable breakout T to the ECM

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

vehicle harness connector J1/P1.

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

C. Fabricate a jumper wire 100 mm (4 inch) long.

Crimp a Deutsch pin to both ends of the wire.