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P0755-2/4 SOLENOID 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 between ground and the 2/4 Solenoid Control circuit.
Is the resistance below 5.0 ohms?
Yes → Repair the 2/4 Solenoid Control circuit for a short to ground.
→ 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.
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 in the Transmission Control Relay connector.
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 2/4 Solenoid Control circuit.
Is the voltage above 0.5 volts?
Yes → Repair the 2/4 Solenoid Control circuit for a short to voltage.
→ Go To 9
No
9
Turn the ignition off to the lock position.
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 in the Transmission Control Relay connector.
Using a 12-volt test light connected to ground, check the Transmission Control Relay
Output circuit in the Solenoid/Pressure Switch Assembly harness connector.
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?
Yes → Go To 10
→ Repair the Transmission Control Relay Output circuit for an
No
Continued
ACTION
Perform 41TE (NGC) TRANSMISSION VERIFICATION TEST -
VER 1.
Perform 41TE (NGC) TRANSMISSION VERIFICATION TEST -
VER 1.
open. If the fuse is open make sure to check for a short to ground.
Perform 41TE (NGC) TRANSMISSION VERIFICATION TEST -
VER 1.
TRANSMISSION - NGC
79
APPLICABILITY
All
All
All
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