2. Fault-Tracing

Fault-Tracing
Faults which occur in the transmission but do not store any diagnostic trouble codes (DTC) can be fault traced by carrying out certain checks and adjusted manually.

Fault-trace in the following order:

Check The Transmission Fluid
Check the color. The color must be clear red or brown red. The color must not be pink. The oil must not be cloudy (pink and/or cloudy oil means that coolant has penetrated the transmission).

Check The Expansion Tank
Check that there is no transmission fluid in the radiator expansion tank (do not confuse it with black engine oil).

Corrective Action
The following corrective action must be taken on finding any faults in the transmission fluid:

Replace the transmission assembly. See the method in VIDA, Replacing the transmission.

Replace the radiator including the extra cooler, if installed, and the hoses for the transmission.

Clean the expansion tank. Check the expansion tank. Replace the expansion tank if necessary.

If the transmission fluid does not reveal any faults, flush and fill the transmission with new transmission fluid in the following way.

Continue: Refer to Preparations. 3. Preparations