Transmission Output RPM Sensor, Checking

Requirements 

• The battery voltage must be at least 12.5 V.
• 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 sequence 

• Disconnect the electrical connector in the - direction of the arrow  - and remove it from the Transmission Control Module (TCM) J217.
• Observe safety precautions.
• Check the electrical harness connector for contact corrosion and ingress of water.

If the electrical harness connector is not OK:

• Repair the malfunction.

If the electrical harness connector is OK:

• Check the wiring according to the wiring diagram:

If no malfunctions are found in the wiring:

• Replace the Mechatronic unit in the transmission. Refer to 38 - AUTOMATIC TRANSMISSION - GEARS, HYDRAULIC CONTROLS .

• Assembly is performed in the reverse of the removal.

1. Check the DTC memory.
2. If necessary, erase DTC memory of the Transmission Control Module (TCM) J217. Refer to Diagnostic Mode 04 - Reset/Delete Diagnostic Data .
3. Generate readiness code. Refer to Readiness Code .