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P0841-LR 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
→ Go To 3
No
3
With the DRBIII , check for other Transmission DTC's.
Is the DTC P0944 present also?
Yes → Refer to the Transmission category and perform the appropriate
→ Go To 4
No
4
With the DRBIII , Check the STARTS SINCE SET counter for P0841.
NOTE: This counter only applies to the last DTC set.
Is the STARTS SINCE SET counter 2 or less?
Yes → Go To 5
→ Go To 12
No
5
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 L/R.
With the DRBIII , monitor the L/R Pressure Switch state while pressing the
Pressure Switch Test button on the Transmission Simulator.
Did the L/R Pressure Switch state change?
Yes → Go To 6
→ Go To 7
No
6
If there are no possible causes remaining, view repair.
Repair
ACTION
symptom.
Perform 41TE (NGC) TRANSMISSION VERIFICATION TEST -
VER 1.
symptom.
Perform 41TE (NGC) TRANSMISSION VERIFICATION TEST -
VER 1.
Replace the Transmission Solenoid/Pressure Switch Assembly per
the Service Information.
Perform 41TE (NGC) TRANSMISSION VERIFICATION TEST -
VER 1.
TRANSMISSION - NGC
89
Continued
APPLICABILITY
All
All
All
All
All
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