Chrysler PT Cruiser 2001 Service Manual Supplement page 2845

P1768-RELAY OUTPUT ALWAYS OFF —
TEST
7 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 Control Relay Output circuit and
ground.
Is the resistance below 5.0 ohms?
Yes → Repair the Transmission Relay Output shorted to ground
→ Go To 8
No
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?
Yes → Repair the Transmission Relay Control shorted to ground
→ Go To 9
No
9 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.
Connect a jumper wire between the Fused B(+) circuit and the Transmission Control
Relay Output circuit in the relay connector.
Measure the voltage of the Transmission Control Relay Output circuit in the TCM
connector.
Is the voltage above 10.0 volts?
Yes → Replace the Transmission Control Relay
→ Go To 10
No
10 If there are no possible causes remaining, replace the TCM.
View repair options.
Repair
11 The conditions necessary to set the DTC are not present at this time. Using the
schematics as a guide, inspect the wiring and connectors specific to this circuit.
Wiggle the wires while checking for shorts and open circuits.
Were any problems found?
Yes → Repair defective wiring and/or connector as necessary.
→ Test Complete.
No
ACTION
Perform 41TE TRANSMISSION VERIFICATION TEST - VER 1.
Perform 41TE TRANSMISSION VERIFICATION TEST - VER 1.
Perform 41TE TRANSMISSION VERIFICATION TEST - VER 1.
Replace the TCM
Perform 41TE TRANSMISSION VERIFICATION TEST - VER 1.
Perform 41TE TRANSMISSION VERIFICATION TEST - VER 1.
Continued
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TRANSMISSION
APPLICABILITY
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