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TRANSMISSION - NGC
P0841-LR PRESSURE SWITCH SENSE CIRCUIT —
TEST
7
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 L/R Pressure Switch Sense circuit from the appropriate
terminal of special tool #8815 to the Transmission Solenoid/Pressure Switch Assem-
bly harness connector.
Is the resistance above 5.0 ohms?
Yes → Repair the L/R Pressure Switch Sense circuit for an open.
→ Go To 8
No
8
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 between ground and the L/R Pressure Switch Sense circuit.
Is the resistance below 5.0 ohms?
Yes → Repair the L/R Pressure Switch Sense circuit for a short to
→ Go To 9
No
9
Turn the ignition off to the lock position.
Disconnect the PCM harness connector.
Disconnect the Transmission Solenoid/Pressure Switch Assembly harness connector.
Remove the Transmission Control Relay.
Note: Check connectors - Clean/repair as necessary.
Connect a jumper wire between the Fused B+ circuit and Transmission Control Relay
Output circuit.
Ignition on, engine not running.
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 voltage of the L/R Pressure Switch Sense circuit.
Is the voltage above 0.5 volts?
Yes → Repair the L/R Pressure Switch Sense circuit for a short to
→ Go To 10
No
ACTION
Perform 41TE (NGC) TRANSMISSION VERIFICATION TEST -
VER 1.
ground.
Perform 41TE (NGC) TRANSMISSION VERIFICATION TEST -
VER 1.
voltage.
Perform 41TE (NGC) TRANSMISSION VERIFICATION TEST -
VER 1.
240
Continued
APPLICABILITY
All
All
All
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