Internal Fault. Permanent Fault

Internal fault. Permanent fault

Checking the control module




- Ignition off.
- Disconnect the speed sensor according to Replacing vehicle speed sensor (VSS) .
- Wait at least 120 seconds.
- Connect the speed sensor according to Replacing vehicle speed sensor (VSS) .
- Ignition on.
The EEPROM in the control module stores diagnostic trouble codes (DTC), diagnostic trouble code (DTC) counters and frozen values. If the memory circuit is malfunctioning then no information can be read from it. To check the condition of the memory it is necessary to simulate a fault. This stores a diagnostic trouble code (DTC). The memory can then be checked by reading off the diagnostic trouble code (DTC) information.
Read off the diagnostic trouble code (DTC) counter.









Is it possible to read off the diagnostic trouble code (DTC) counter?

Yes - Fault-tracing information

No - Replacing component

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Replacing component
The control module has an internal fault.

Caution! A new control module is delivered without software. The control module must be programmed in order to function after replacement.

For further information about programming and replacing the control module, see Replacing the gearbox control module (TCM) .





Continue - Fault-tracing information

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Fault-tracing information




Information

Fault-tracing information
In case of this defect, troubleshooting is not followed by verification.
The information can be displayed again or the fault-tracing for this fault can be interrupted.

Do you want to view the information again?

Yes - Attempt New Test

No - FAULT FOUND

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Attempt New Test - Checking the control module

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