Solenoid Valves In Valve Body, Checking

Solenoid Valves in Valve Body, Checking

This procedure is used to diagnose all Solenoid Valves in the valve body.

Special tools, testers and auxiliary items required

• Multimeter

•

• Wiring diagram

Requirements

• The Solenoid Valve fuses 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 elector lever must be in the "P" position.

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

• Ignition switched off.

Test procedure

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

Start diagnosis

- Disconnect the Solenoid Valve electrical harness connector - 2 -.





- 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 resistance

- Using a multimeter, check the Solenoid Valve terminals 1 to 2 at the Solenoid Valve electrical harness connector for resistance.









If any of the specified values are not obtained:

- Replace the faulty Solenoid Valve.

If the specified values are obtained:

Checking wiring

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

- Install the test box. Refer to => [ 68 Pin Test Box Adapter, Installing ] 68 Pin Test Box Adapter, Installing.

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

- Remove the Transmission Control Module (TCM) ( J217). => [ Transmission Control Module, Replacing ] .

- Using a multimeter, check the Solenoid Valve electrical harness connector terminals to the Transmission Control Module (TCM) (J217) electrical harness connector T68 terminals for an open circuit.









Specified value: 1.5 ohms Max.

If the specified value 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 faulty Solenoid Valve.

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

- Replace the Transmission Control Module (TCM) ( J217).

- 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 Motronic Engine Control Module (ECM) (J220). Refer to => [ Engine Control Module, Replacing ] Engine Control Module, Replacing.

- Assembly is performed in the reverse of the removal.

Final procedures

- Check the DTC memory. Refer to => [ Diagnostic Mode 03 - Read DTC Memory ] Diagnostic Mode 03 - Read DTC Memory. Refer to => [ Diagnostic Mode 04 - Erase DTC Memory ] Diagnostic Mode 04 - Erase DTC Memory

- Refer to => [ Readiness Code ] Readiness Code