Trouble Code Conditions

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Trouble Code Conditions
- The transmission control module (TCM) calculates the ratio between the torque converter input speed (engine speed RPM) and the transmission speed after the torque converter. Diagnostic trouble code (DTC) AT-341 is stored if the transmission control module registers a difference of over 100 rpm between the speeds, even though the lock-up function is activated.

Substitute value(s)
- The transmission control module "Emergency mode I" program has been initiated.

Possible source(s)
- Contact resistance in terminals.
- Mechanical fault in the transmission.

Fault symptom(s)
- The combined instrument panel warning lamp flashes.
- Mechanical malfunction. Faults are usually indicated by noise or other obvious function problems.
- No lock-up function.
- No adaption of the gear slippage times at high altitude (High Altitude Compensation).
- Start fault-tracing. Slipping Or Not Engaged