Symptom:
*NO RESPONSE FROM WINDOW REGULATOR MODULE - PT27
POSSIBLE CAUSES
OPEN GROUND CIRCUIT
OPEN FUSED B+ CIRCUIT
OPEN FUSED IGNITION SWITCH OUTPUT CIRCUIT
OPEN PCI BUS CIRCUIT
WINDOW REGULATOR MODULE
TEST
ACTION
APPLICABILITY
1
Turn the ignition off.
Turn all lights off.
Disconnect the Window Regulator Module harness connector.
Using a 12-volt test light connected to 12-volts, probe each ground circuit.
Is the test light illuminated for each ground circuit?
All
Yes
→ Go To 2
No
→ Repair the ground circuit for an open.
Perform BODY VERIFICATION TEST - VER 1.
2
Turn the ignition off.
Disconnect the Window Regulator Module harness connector.
Using a 12-volt test light connected to ground, probe each Fused B+ circuit.
Did the test light illuminated for each Fused B+ circuit?
All
Yes
→ Go To 3
No
→ Check the fuses that feed the Fused B+ circuits for an open. If ok,
repair the Fused B+ circuit that did not illuminate the test light
for an open. Refer to the wiring diagrams in the service informa-
tion.
Perform BODY VERIFICATION TEST - VER 1.
3
Turn the ignition off.
Disconnect the Window Regulator Module harness connector.
Turn the ignition on.
Using a 12-volt test light connected to ground, probe the Fused Ignition Switch
Output circuit.
Is the test light illuminated?
All
Yes
→ Go To 4
No
→ Repair the Fused Ignition Switch Output circuit for an open.
Perform BODY VERIFICATION TEST - VER 1.
195
COMMUNICATION