Chrysler PT Cruiser 2001 Service Manual Supplement page 2893

P1799-CALCULATED OIL TEMP IN USE —
TEST
6 Turn ignition off to the lock position.
Disconnect the TCM harness connector.
Disconnect the TRS 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(+) and Transmission Control Relay
Output circuits in the Transmission Control Relay connector (In PDC).
Ignition on, engine not running.
Measure the voltage of the Speed Sensor Ground circuit in the TCM connector.
Is the voltage above 3.0 volts?
Yes → Repair Speed Sensor Ground circuit short to voltage.
→ Go To 7
No
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.
Connect a jumper wire between the Fused B(+) and Transmission Control Relay
Output circuits in the Transmission Control Relay connector (In PDC).
Ignition on, engine not running.
Measure the voltage of the Trans Temp Sensor Signal circuit in the TCM connector.
Is the voltage above 8.0 volts?
Yes → Repair Trans Temp Sensor Signal circuit short to voltage.
→ Go To 8
No
8 If there are no possible causes remaining, replace the TCM.
View repair options.
Repair
9 If the temperature readings are correct with the simulator installed, the problem
must be internal.
Replace the TRS assembly.
View repair options.
Repair
10 Turn ignition off to the lock position.
Disconnect the TCM harness connector.
Disconnect the TRS harness connector.
Note: Check connectors - Clean/repair as necessary.
Measure the resistance between the Trans Temp Sensor Signal circuit and ground.
Is the resistance below 5.0 ohms?
Yes → Repair Transmission Temperature Sensor Signal circuit short to
→ Go To 11
No
ACTION
Perform 41TE TRANSMISSION VERIFICATION TEST - VER 1.
Perform 41TE TRANSMISSION VERIFICATION TEST - VER 1.
Replace the TCM.
Perform 41TE TRANSMISSION VERIFICATION TEST - VER 1.
Replace TRS assembly as required.
Perform 41TE TRANSMISSION VERIFICATION TEST - VER 1.
ground.
Perform 41TE TRANSMISSION VERIFICATION TEST - VER 1.
Continued
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TRANSMISSION
APPLICABILITY
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