TEST
ACTION
APPLICABILITY
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.
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.
Connect a jumper wire between the Fused B+ circuit and Transmission Control Relay
Output circuit at the Transmission Control Relay connector.
Ignition on, engine not running.
Measure the voltage of the L/R Pressure Switch Sense circuit.
Is the voltage above 0.5 volt?
All
Yes
→ Repair the L/R Pressure Switch Sense circuit for a short to
voltage.
Perform 40/41TE (NGC) TRANSMISSION VERIFICATION
TEST - VER 1.
No
→ Go To 10
10
Using the schematics as a guide, inspect the wiring and connectors. Repair as
necessary. Pay particular attention to all power and ground circuits.
If there are no possible causes remaining, view repair.
All
Repair
Replace the Powertrain Control Module per the Service Informa-
tion. WITH THE DRBIII
t PERFORM QUICK LEARN AND
REPROGRAM PINION FACTOR.
Perform 40/41TE (NGC) TRANSMISSION VERIFICATION
TEST - VER 1.
11
The conditions necessary to set this DTC are not present at this time.
Test Drive and verify if the transmission is launching in 2nd gear and/or no TCC
engagement.
With the DRBIII
t, check the EATX EVENT DATA to help identify the conditions in
which the DTC was set.
Are there 2nd gear launches and/or no TCC engagement?
All
Yes
→ Disassemble and inspect the Valve Body per the Service Informa-
tion Inspect the Solenoid Switch Valve for sticking in its bore and
repair or replace as necessary.
Perform 40/41TE (NGC) TRANSMISSION VERIFICATION
TEST - VER 1.
No
→ Test Complete.
164
TRANSMISSION - NGC
P1776-SOLENOID SWITCH VALVE LATCHED IN LR POSITION —
Continued