Symptom:
REAR WASHER OUTPUT SHORT TO GROUND-IPM
POSSIBLE CAUSES
REAR WASHER MOTOR CONTROL CIRCUIT SHORT TO GROUND
REAR WASHER PUMP MOTOR FUNCTION
INTEGRATED POWER MODULE
INTERMITTENT WIRING AND CONNECTORS
TEST
ACTION
APPLICABILITY
1
Ignition on, engine not running.
Turn on the Rear Washer.
Does the Rear Washer Function properly?
All
Yes
→ Go To 2
No
→ Go To 3
2
Turn the ignition on.
With the DRBIII
t, erase all IPM DTCs.
Turn the ignition off.
The conditions necessary to set this DTC are not present at this time.
Using the schematics as a guide, inspect the wiring and connectors specific to this
circuit.
Wiggle the wiring while checking for shorts and open circuits.
Were there any problems found?
All
Yes
→ Repair as necessary.
Perform BODY VERIFICATION TEST - VER 1.
No
→ Test Complete.
3
Turn the ignition off to the lock position.
Disconnect the IPM C5 harness connector.
Disconnect the Rear Washer Motor harness connector.
NOTE: Check connectors - Clean/repair as necessary.
Measure the resistance between ground and the Rear Washer Motor Control circuit.
Is the resistance less than 5.0 ohms?
All
Yes
→ Repair the Rear Washer Motor Control Circuit for a short to
ground.
Perform BODY VERIFICATION TEST - VER 1.
No
→ Go To 4
4
Turn the ignition off to the lock position.
Disconnect the IPM C5 harness connector.
Connect a 20A Fused jumper wire between B+ and the Rear Washer Motor Signal
circuit in the IPM connector harness.
NOTE: An internal short in the Washer Motor may cause the fuse to open.
Does the Washer Motor function?
All
Yes
→ Test Complete.
No
→ Replace the Rear Washer Pump Motor in accordance with the
Service Information.
Perform BODY VERIFICATION TEST - VER 1.
1097
WINDSHIELD WIPER & WASHER