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P1775-SOLENOID SWITCH VALVE LATCHED IN TCC POSITION —
Continued
TEST
9
Turn the ignition off to the lock position.
Disconnect the Transmission Solenoid/Pressure Switch Assembly harness connector.
Remove the Transmission Control Relay.
Connect a jumper wire between the Fused B+ circuit and the Transmission Control
Relay Output circuit.
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.
Disconnect the PCM C4 harness connector.
Using a 12-volt test light connected to ground, check all three Transmission Control
Relay Output circuits in the appropriate terminals of special tool #8815.
NOTE: The test light must illuminate brightly. Compare the brightness to
that of a direct connection to the battery.
Does the test light illuminate brightly on all three output circuits?
Yes → Repair the Transmission Control Relay Output circuit for an
→ Go To 10
No
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.
Repair
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 , 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?
Yes → Disassemble and inspect the Valve Body per the Service Informa-
→ Test Complete.
No
ACTION
open.
Perform 41TE (NGC) TRANSMISSION VERIFICATION TEST -
VER 1.
Replace the Powertrain Control Module per the Service Informa-
tion. WITH THE DRBIII
REPROGRAM PINION FACTOR.
Perform 41TE (NGC) TRANSMISSION VERIFICATION TEST -
VER 1.
tion and repair or replace as necessary. If no problems are found
in the Valve Body, replace the Transmission Solenoid Pressure
Switch Assembly.
Perform 41TE (NGC) TRANSMISSION VERIFICATION TEST -
VER 1.
TRANSMISSION - NGC
PERFORM QUICK LEARN AND
143
APPLICABILITY
All
All
All
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