TEST ACTION APPLICABILITY
2 With the DRBIIIt, read Transmission DTC’s
Are there any Transmission Control Relay DTC’s present also?
All
Yes → Refer to the Transmission category and perform the appropriate
symptom.
Perform 41TE (NGC) TRANSMISSION VERIFICATION TEST -
VER 1.
No → Go To 3
3 With the DRBIIIt, check for other Transmission DTC’s.
Is the DTC P0944 present also?
All
Yes → Refer to the Transmission category and perform the appropriate
symptom.
Perform 41TE (NGC) TRANSMISSION VERIFICATION TEST -
VER 1.
No → Go To 4
4 With the DRBIIIt, 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?
All
Yes → Go To 5
No → Go To 12
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 DRBIIIt, 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?
All
Yes → Go To 6
No → Go To 7
6 If there are no possible causes remaining, view repair. All
Repair
Replace the Transmission Solenoid/Pressure SwitchAssembly per
the Service Information.
Perform 41TE (NGC) TRANSMISSION VERIFICATION TEST -
VER 1.
103
TRANSMISSION - NGC
P0841-LR PRESSURE SWITCH SENSE CIRCUIT — Continued
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