FREE REPAIR MANUALS & LABOR GUIDES 1982-2013 Vehicles
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Faulty Signal - Permanent Fault




ECM-911A THROTTLE UNIT COMMUNICATION, COMMUNICATION PROBLEMS
FAULTY SIGNAL - PERMANENT FAULT

Other diagnostic trouble codes (DTCs)



Note: The role of the central electrical unit is the overall control of the communication network and a number of DTCs which indicate the fault. In case of communication problems the fault may exist in another part of the communication network.
- Ignition on
- Read diagnostic trouble codes (DTCs) in the central electrical unit

Check if there are diagnostic trouble codes (DTCs) on the communication network.

Are there diagnostic trouble codes (DTC) stored for the communications network in the central electrical unit? Fault-trace according to the diagnostic trouble codes (DTCs)
Yes - Testing Complete.
No - Continue below.


Replacing throttle unit and programming



The engine control module (ECM) has registered an internal fault in the throttle unit.

CAUTION! A new throttle unit is delivered without software. For the throttle unit to function after replacement, the throttle unit must be programmed.

For information about programming and replacing the throttle unit, Throttle Body (Electronic Throttle Module), Replacing


Fault-tracing information
Fault-tracing is not followed by verification for this fault.