Test Step 8. Inspect Electrical Connectors and Wiring for the 2-Wire Float Sensor

194

TM 9-2320-312-24-2

Troubleshooting Section

Test Step 8. Inspect Electrical Connectors

and Wiring for the 2-Wire Float Sensor

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Illustration 57

Schematic for 2-wire float sensor

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Illustration 58

Terminal locations for ECM connector P1 (2-wire float sensor)

P1/J1:26 coolant level input

A. Thoroughly inspect ECM vehicle harness

connector J1/P1, the connector for the

P1/J1:5 AP sensor/switch sensor common

coolant level sensor and the terminals for the

coolant level sensor in the connectors. Refer

to Troubleshooting, "Electrical Connectors -

Refer to Illustration 58.

Inspect" for details.

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

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

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

wires in the ECM connector that are associated

with the following connections:

D. Check the harness and wiring for abrasion and

pinch points from the sensor to the ECM.