TEST
ACTION
APPLICABILITY
6
Turn ignition switch to the lock position
Disconnect the Transmission Control Relay
Note: Check connectors - Clean/repair as necessary.
Measure the resistance between the Ground circuit in the relay connector and
ground.
Is the resistance above 5.0 ohms?
45RFE AUTO
TRANS
Yes
→
Repair the open Ground circuit
Perform 45RFE TRANSMISSION VERIFICATION TEST - VER
1.
No
→
Go To
7
7
Turn ignition switch to the lock position
Disconnect the TCM harness connector.
Remove the Transmission Control Relay
Note: Check connectors - Clean/repair as necessary.
Measure the resistance between the Transmission Control Relay Output circuit and
ground.
Is the resistance below 5.0 ohms?
45RFE AUTO
TRANS
Yes
→
Repair the Transmission Relay Output shorted to ground
Perform 45RFE TRANSMISSION VERIFICATION TEST - VER
1.
No
→
Go To
8
8
Turn ignition off to the lock position.
Disconnect the TCM harness connector.
Remove the Transmission Control Relay from the PDC.
Note: Check connectors - Clean/repair as necessary.
Measure the resistance between the Transmission Relay Control circuit and ground.
Is the resistance below 5.0 ohms?
45RFE AUTO
TRANS
Yes
→
Repair the Transmission Relay Control circuit shorted to ground
Perform 45RFE TRANSMISSION VERIFICATION TEST - VER
1.
No
→
Go To
9
9
Turn ignition switch to the lock position
Disconnect the TCM harness connector.
Remove the Transmission Control Relay
Note: Check connectors - Clean/repair as necessary.
Connect a jumper wire between the Fused B(+) circuit and the Transmission Control
Relay Output circuit in the relay commector.
Measure the voltage of the Transmission Control Relay Output circuit in the TCM
connector.
Is the voltage above 10.0 volts?
45RFE AUTO
TRANS
Yes
→
Replace the Transmission Control Relay
Perform 45RFE TRANSMISSION VERIFICATION TEST - VER
1.
No
→
Go To
10
159
TRANSMISSION
P1768-RELAY OUTPUT ALWAYS OFF —
Continued