TEST
ACTION
APPLICABILITY
4
Turn the ignition off.
Remove the Transmission Control Relay from the PDC.
Check connectors - Clean/repair as necessary.
Turn the ignition on.
Using a 12-volt test light connected to ground, check the Generator Source circuit in
the Transmission Control Relay connector.
Does the test light illuminate brightly?
without 45RFE
AUTO TRANS
Yes
→
Go To
5
No
→
Repair the generator source circuit for an open.
Perform TRANSMISSION VERIFICATION TEST VER - 1.
5
Turn the ignition off.
Remove the Transmission Control Relay from the PDC.
Disconnect the PCM harness connectors.
Check connectors - Clean/repair as necessary.
Measure the resistance between ground and the Generator Source circuit in the
Transmission Control Relay connector.
Is the resistance above 100 kohms?
without 45RFE
AUTO TRANS
Yes
→
Go To
6
No
→
Repair the generator source circuit for a short to ground.
Perform TRANSMISSION VERIFICATION TEST VER - 1.
6
Turn the ignition off.
Remove the Transmission Control Relay from the PDC.
Disconnect the PCM C2 harness connector.
Check connectors - Clean/repair as necessary.
Measure the resistance of the Transmission Control Relay Control circuit between
the Transmission Control Relay connector and the PCM C2 harness connector.
Is the resistance below 5.0 ohms?
without 45RFE
AUTO TRANS
Yes
→
Go To
7
No
→
Repair the transmission control relay control circuit for an open.
Perform TRANSMISSION VERIFICATION TEST VER - 1.
7
Turn the ignition off.
Remove the Transmission Control Relay from the PDC.
Disconnect the PCM C2 harness connector.
Check connectors - Clean/repair as necessary.
Measure the resistance between ground and the Transmission Control Relay Control
circuit in the Transmission Control Relay connector.
Is the resistance above 100 kohms?
without 45RFE
AUTO TRANS
Yes
→
Go To
8
No
→
Repair the transmission control relay control circuit for a short to
ground.
Perform TRANSMISSION VERIFICATION TEST VER - 1.
8
If there are no possible causes remaining, view repair.
without 45RFE
AUTO TRANS
Repair
Replace and program the Powertrain Control Module in accor-
dance with the Service Information.
Perform TRANSMISSION VERIFICATION TEST VER - 1.
393
TRANSMISSION
P1765-TRANS 12 VOLT SUPPLY RELAY CTRL CIRCUIT —
Continued