Chrysler Concorde 2004 Service Manual page 1281

P0871-OD PRESSURE SWITCH SENSE CIRCUIT —
TEST
2 With the DRBIII , read Transmission DTC's
Are there any Transmission Control Relay DTC's present also?
Yes → Refer to the Transmission category and perform the appropriate
No
3 With the DRBIII , Check the STARTS SINCE SET counter for P0871.
NOTE: This counter only applies to the last DTC set.
Is the STARTS SINCE SET counter 2 or less?
Yes → Go To 4
No
4 Turn the ignition off to the lock position.
Remove the Starter Relay.
CAUTION: Removal of the Starter Relay is to prevent a Transmission, NO
RESPONSE, condition and disable the starter.
Install the Transmission Simulator, Miller tool #8333 and the Electronic Transmis-
sion Adapter kit 8333-1A.
Note: Check connectors - Clean/repair as necessary.
Ignition on, engine not running.
With the Transmission Simulator turn the Pressure Switch selector to OD.
With the DRBIII , monitor the OD Pressure Switch state while pressing Pressure
Switch test button.
Did the OD Pressure Switch state change while pressing the Pressure Switch test
button?
Yes → Go To 5
No
5 If there are no possible causes remaining, view repair.
Repair
6 Turn the ignition off to the lock position.
Disconnect the PCM harness connector.
Disconnect the Transmission Solenoid/Pressure Switch Assembly harness connector.
Note: Check connectors - Clean/repair as necessary.
CAUTION: DO NOT PROBE THE PCM HARNESS CONNECTORS. PROBING
THE PCM HARNESS CONNECTORS WILL DAMAGE THE PCM TERMI-
NALS RESULTING IN POOR TERMINAL TO PIN CONNECTION. INSTALL
MILLER SPECIAL TOOL #8815 TO PERFORM DIAGNOSIS.
Measure the resistance of the OD Pressure Switch Sense circuit from the appropriate
terminal of special tool #8815 and the Transmission Solenoid/Pressure Switch
Assembly harness connector.
Is the resistance above 5.0 ohms?
Yes → Repair the OD Pressure Switch Sense circuit for an open.
No
ACTION
symptom.
Perform 42LE (NGC) TRANSMISSION VERIFICATION TEST -
VER 1.
→ Go To 3
→ Go To 11
→ Go To 6
Replace the Solenoid/Pressure Switch Assembly per the Service
Information.
Perform 42LE (NGC) TRANSMISSION VERIFICATION TEST -
VER 1.
Perform 42LE (NGC) TRANSMISSION VERIFICATION TEST -
VER 1.
→ Go To 7
TRANSMISSION - NGC
121
Continued
APPLICABILITY
All
All
All
All
All