Transmission Output Speed Sensor, Checking

Transmission Output Speed Sensor, Checking

Special tools, testers and auxiliary items required

• multimeter

• Wiring diagram

Requirements

• The Transmission Output Speed (RPM) Sensor (G195) fuse OK.

• The battery voltage must be at least 12.5 Volts.

• All electrical consumers must be switched off.

• The parking brake must be engaged.

• The selector lever must be in the "P" position.

• The Ground (GND) connections to transmission must be OK.

Test procedure

- Perform a preliminary check to verify the customers complaint. Refer to => [ Preliminary Check ] Preliminary Check

- Disconnect the Transmission Output Speed (RPM) Sensor (G195) electrical harness connector - 1 -.





- Check the electrical harness connector for damage, corrosion, loose or broken terminals.

- Repair any damage found to the electrical harness connector.

If the electrical harness connector is not OK:

- Repair the malfunction.

If the electrical harness connector is OK:

Checking wiring

If the manufacturers test box is being used, perform the following step.

- Install the test box.

If the manufacturers test box is not being used, perform the following step.

- Remove the Transmission Control Module (TCM) (J217). Refer to => [ Transmission Control Module, Replacing ] Service and Repair.

- Using a multimeter, check the Transmission Output Speed (RPM) Sensor (G195) electrical harness connector T 16 terminals to the Transmission Control Module (TCM) (J217) electrical harness connector terminals for an open circuit.









Specified value: 1.5 ohms Max.

If the specification was not obtained:

- Check the wiring for a short circuit to each other, Battery (+), and Ground (GND).

- If necessary, repair the faulty wiring connection.

If no malfunction is found in the wiring and the resistance was not OK:

- Replace the Transmission Output Speed (RPM) Sensor (G195). For all Automatic Transmission system removal/installation procedures and torque specifications.

If no malfunction is found in the wiring and the resistance was OK:

- Erase the DTC memory. Refer to => [ Diagnostic Mode 04 - Erase DTC Memory ] Diagnostic Mode 04 - Erase DTC Memory

- Perform a road test to verify repair.

If the DTC does not return:

Repair complete, Generate readiness code. Refer to => [ Readiness Code ] Readiness Code.

- End diagnosis.

If the DTC does return and no malfunction is detected in the wiring and the voltage supply was OK:

- Replace the Transmission Control Module (TCM) (J217). Refer to => [ Transmission Control Module, Replacing ] Service and Repair.

Final procedures

1. Check the DTC memory. Refer to => [ Diagnostic Mode 03 - Read DTC Memory ] Diagnostic Mode 03 - Read DTC Memory.

2. If necessary, erase DTC memory of the Transmission Control Module (TCM) (J217). => [ Diagnostic Mode 04 - Erase DTC Memory ] Diagnostic Mode 04 - Erase DTC Memory.

3. Generate readiness code. => [ Readiness Code ] Readiness Code.