Backup Lamps Come On While Shifter Is Not In Reverse Position - Chrysler PT Cruiser 2001 Service Manual Supplement

TRANSMISSION
Symptom:
*BACKUP LAMPS COME ON WHILE SHIFTER IS NOT IN REVERSE
POSITION
BACK-UP LAMP SUPPLY CIRCUIT SHORT TO VOLTAGE
TRANSMISSION RANGE SENSOR (BACKUP LIGHTS ALWAYS ON)
TRANSMISSION RANGE SENSOR (INT BU LTS)
TEST
1 Ignition on, engine not running.
Firmly apply brakes.
Place the shift lever in the position which causes the Backup Lamps to come on at the
wrong time.
Do the Backup Lamps come while the shifter is not in Reverse?
Yes → Go To 2
→ Go To 4
No
2 Ignition on, engine not running.
Place the shift lever in the position (not reverse) that causes the Backup Lamps to
come on when they should NOT be on.
Disconnect the transmission TRS connector.
Note: This will cause a DTC P-0705 and possibly other DTC's to be stored in
the TCM. They must be erased before returning the vehicle to the customer.
Did the Backup Lamps go out when the connector was disconnected?
Yes → Go To 3
→ Repair Back-up Lamp Supply circuit short to voltage.
No
3 If there are no possible causes remaining, replace the TRS.
View repair options.
Repair
4 Turn ignition off to the lock position.
CAUTION: Remove the Starter Relay from the PDC. This will prevent the
vehicle from being started in gear.
Install Transmission simulator (Miller tool #8333) and the FWD Adapter Cable
kit.(Miller tool #8333-1).
Ignition on, engine not running.
Note: Check connectors - Clean/repair as necessary.
Wiggle the wire harness while observing the back-up lamps.
Did the backup lamps come on while the wires were being wiggled?
Yes → Repair Back-up Lamp Supply circuit short to voltage.
→ Go To 5
No
POSSIBLE CAUSES
ACTION
Perform 41TE TRANSMISSION VERIFICATION TEST - VER 1.
Replace Transmission Range Sensor.
Perform 41TE TRANSMISSION VERIFICATION TEST - VER 1.
Perform 41TE TRANSMISSION VERIFICATION TEST - VER 1.
150
APPLICABILITY
All
All
All
All