TEST
ACTION
APPLICABILITY
2
Turn the ignition off to the lock position.
Remove the Starter Relay.
CAUTION: Removal of the Starter Relay is to prevent a Transmission, NO
RESPONSE, condition and disable the starter.
Install the Transmission Simulator, Miller tool #8333 and the Electronic Transmis-
sion Adapter kit, Miller tool #8333-1A.
Ignition on, engine not running.
Using the Transmission Simulator, set the selector switch to the 3000/1250 position.
Turn the Input/Output switch to ON.
With the DRBIII
t, read the Input and Output Speed Sensor RPM.
Does the Input Speed read 3000 RPM and the Output Speed read 1250 RPM within
50 RPM?
All
Yes
→ Go To 3
No
→ Go To 4
3
The conditions necessary to set this DTC are not present at this time.
Using the schematics as a guide, inspect the wiring and connectors specific to this
circuit.
Wiggle the wiring while checking for shorted and open circuits.
With the DRBIII
t, check the EATX EVENT DATA to help identify the conditions in
which the DTC was set.
Were there any problems found?
All
Yes
→ Repair as necessary.
Perform 41TE TRANSMISSION VERIFICATION TEST - VER 1.
No
→ Test Complete.
4
Turn the ignition off to the lock position.
Disconnect the TCM harness connector.
Disconnect the TRS harness connector.
Note: Check connectors - Clean/repair as necessary.
Measure the resistance of the Input Speed Sensor Ground circuit from the TCM
harness connector to the Speed Sensor harness connector.
Is the resistance above 5.0 ohms?
All
Yes
→ Repair the Speed Sensor Ground circuit for an open or high
resistance.
Perform 41TE TRANSMISSION VERIFICATION TEST - VER 1.
No
→ Go To 5
5
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 Transmission Control Module per the Service Infor-
mation. WITH THE DRBIII
t PERFORM QUICK LEARN AND
REPROGRAM PINION FACTOR.
Perform 41TE TRANSMISSION VERIFICATION TEST - VER 1.
151
TRANSMISSION - EATX
P1794-SPEED SENSOR GROUND ERROR —
Continued