TEST
ACTION
APPLICABILITY
6
Turn ignition switch to the lock position
Disconnect the TCM harness connector.
Disconnect the Output Speed Sensor harness connector.
Note: Check connectors - Clean/repair as necessary.
Measure the resistance of the Speed Sensor Ground circuit from the TCM connector
to the Output Speed Sensor connector.
Is the resistance above 5.0 ohms?
45RFE AUTO
TRANS
Yes
→
Repair open Speed Sensor Ground circuit
Perform 45RFE TRANSMISSION VERIFICATION TEST - VER
1.
No
→
Go To
7
7
Turn ignition switch to the lock position.
Disconnect the Transmission Control Module (TCM) connector.
Disconnect the Output Speed Sensor connector.
Note: Check connectors - Clean/repair as necessary.
Measure the resistance between the Output Speed Sensor Signal circuit and ground.
Is the resistance Below 5.0 ohms?
45RFE AUTO
TRANS
Yes
→
Repair Output Speed Sensor Signal circuit short to ground.
Perform 45RFE TRANSMISSION VERIFICATION TEST - VER
1.
No
→
Go To
8
8
Turn ignition switch to the lock position.
Disconnect the TCM harness connector.
Disconnect the Output Speed Sensor connector.
Note: Check connectors - Clean/repair as necessary.
Measure the resistance between the Speed Sensor Ground circuit and ground.
Is the resistance Below 5.0 ohms?
45RFE AUTO
TRANS
Yes
→
Repair Speed Sensor Ground circuit short to ground.
Perform 45RFE TRANSMISSION VERIFICATION TEST - VER
1.
No
→
Go To
9
9
Turn the ignition switch to the lock position.
Disconnect the TCM harness connector.
Remove the Transmission Control Relay
Note: Check connectors - Clean/repair as necessary.
Place a jumper wire between the fused B(+) and Transmission Relay Output circuits
in the Transmission Control Relay connector.
Turn ignition on.
Measure the voltage of the Output Speed Sensor Signal circuit in the TCM connector.
Is the voltage above 3.0 volts?
45RFE AUTO
TRANS
Yes
→
Repair Output Speed Sensor Signal circuit short to voltage.
Perform 45RFE TRANSMISSION VERIFICATION TEST - VER
1.
No
→
Go To
10
47
TRANSMISSION
P0720-OUTPUT SPEED SENSOR ERROR —
Continued