TEST
ACTION
APPLICABILITY
2
Ignition on, engine not running.
With the DRBIII
t, erase DTCs.
With the DRBIII
t, perform the Solenoid Test
With the DRBIII
t, read DTCs.
Did the DTC, Mod Press SOLENOID CIRCUIT, reset?
All
Yes
→ Go To 3
No
→ Go To 7
3
Turn the ignition off to the lock position.
Disconnect the Transmission Control Module C2 harness connector.
Disconnect the Transmission Solenoid Assembly harness connector
Note: Check connectors - Clean/repair as necessary.
Measure the resistance of the Mod. Press Solenoid Control circuit from the TCM C2
harness connector to the Transmission Solenoid Assembly harness connector.
Is the resistance above 5.0 ohms?
All
Yes
→ Repair the Mod. Press Solenoid Control circuit for an open.
Perform NAG1 TRANSMISSION VERIFICATION TEST - VER 1.
No
→ Go To 4
4
Turn the ignition off to the lock position.
Disconnect the Transmission Control Module C2 harness connector.
Disconnect the Transmission Solenoid Assembly harness connector.
Note: Check connectors - Clean/repair as necessary.
Measure the resistance between ground and the Mod. Press Solenoid Control circuit.
Is the resistance below 5.0 ohms?
All
Yes
→ Repair the Mod. Press Solenoid Control circuit for a short to
ground.
Perform NAG1 TRANSMISSION VERIFICATION TEST - VER 1.
No
→ Go To 5
5
Turn the ignition off to the lock position.
Disconnect the Transmission Control Module C2 harness connector.
Disconnect the Transmission Solenoid Assembly harness connector.
Note: Check connectors - Clean/repair as necessary.
Measure the resistance of the Mod Press Solenoid Control circuit to all other circuits
in the Transmission Solenoid Assembly harness connector.
Is the resistance below 5.0 ohms between any other circuit?
All
Yes
→ Repair the Mod. Press Solenoid Control circuit for a short to other
circuits.
Perform NAG1 TRANSMISSION VERIFICATION TEST - VER 1.
No
→ Go To 6
85
TRANSMISSION - NAG1
MODULATING PRESSURE SOLENOID CIRCUIT —
Continued