TEST
ACTION
APPLICABILITY
12
Turn the ignition off.
Disconnect the Transmission Solenoid Assembly harness connector.
Disconnect the PCM C1 harness connector.
Check connectors - Clean/repair as necessary.
Measure the resistance of the Sensor Ground circuit between the Transmission
Solenoid Assembly harness connector and the PCM C1 harness connector.
Is the resistance below 5.0 ohms?
without 45RFE
AUTO TRANS
Yes
→
Go To
13
No
→
Repair the Sensor Ground circuit for an open.
Perform TRANSMISSION VERIFICATION TEST VER - 1.
13
Turn the ignition off.
NOTE: All harness connectors must be connected before proceeding.
Place the vehicle on a hoist that will allow all 4 wheels to rotate freely.
Connect a 700 kPa (100 PSI) transmission pressure gauge to the accumulator test
port.
Start the engine.
Allow the transmission to reach normal operating temperature.
Check the transmission line pressure by performing the Hydraulic Pressure Test in
the Service Information.
Was the transmission line pressure within specification?
without 45RFE
AUTO TRANS
Yes
→
Go To
14
No
→
Repair the transmission line pressure as necessary. Refer to the
Service Information for repair procedures.
Perform TRANSMISSION VERIFICATION TEST VER - 1.
14
Turn the ignition off.
Place the vehicle on a hoist that will allow all 4 wheels to rotate freely.
Connect a 700 kPa (100 PSI) transmission pressure gauge to the governor pressure
test port.
Start the engine.
Allow the transmission to reach normal operating temperature.
WARNING: Ensure all 4 wheels do not touch the ground.
Place the gear selector lever in Low (1).
Compare the DRB Governor Pressure Sensor reading with the pressure gauge
reading while slowly increasing vehicle speed to 40 km/h (25 MPH).
Does the DRB governor pressure reading match the pressure gauge reading at all
speeds?
without 45RFE
AUTO TRANS
Yes
→
Go To
15
No
→
Go To
16
208
DRIVEABILITY - DIESEL
P1756-GOV PRESS NOT EQUAL TO TARGET @ 15-20 PSI —
Continued