TEST
ACTION
APPLICABILITY
2
With the DRBIII
t, check for other Transmission DTCs
Is the DTC P0841 present also?
All
Yes
→ Refer to the Transmission category and perform the appropriate
symptom.
Perform 41TE TRANSMISSION VERIFICATION TEST - VER 1.
No
→ Go To 3
3
With the DRBIII
t, Check the STARTS SINCE SET counter for P1776.
NOTE: This counter only applies to the last DTC set.
Is the STARTS SINCE SET counter 2 or less?
All
Yes
→ Go To 4
No
→ Go To 10
4
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 FWD Adapter Cable
kit, Miller tool #8333-1A.
Ignition on, engine not running.
On the Transmission Simulator select L/R on the Pressure Switch selector switch.
With the DRBIII
t, monitor the L/R Pressure Switch state while pressing the
Pressure Switch Test button on the Transmission Simulator.
Did the Pressure Switch state change from OPEN to CLOSED when the test button
was pressed?
All
Yes
→ Inspect the Solenoid Switch Valve in the Valve Body per the
Service Information and repair or replace as necessary. If no
problems are found in Valve Body, replace the Transmission
Solenoid/Pressure Switch Assembly per the Service Information.
Perform 41TE TRANSMISSION VERIFICATION TEST - VER 1.
No
→ Go To 5
5
Turn the ignition off to the lock position.
Disconnect the TCM harness connector.
Disconnect the Transmission Solenoid/Pressure Switch Assembly harness connector.
Note: Check connectors - Clean/repair as necessary.
Measure the resistance of the L/R Pressure Switch Sense circuit from the TCM
harness connector to the Transmission Solenoid/Pressure Switch Assembly harness
connector.
Is the resistance above 5.0 ohms?
All
Yes
→ Repair the L/R Pressure Switch Sense circuit for an open.
Perform 41TE TRANSMISSION VERIFICATION TEST - VER 1.
No
→ Go To 6
143
TRANSMISSION - EATX
P1776-SOLENOID SWITCH VALVE LATCHED IN LR POSITION —
Continued