My 1997 plymouth breeze
is shooting codes
12 46 43 55,
what do they mean?
OBD Code 12 - No Distributor Reference Pulse (Diagnostic Test Active)
The Engine Control Module-ECM uses the distributor reference pulse to calculate the engine speed. On
newer engines, the Crank Shaft Position Sensor performs this function.
Symptoms:
Common Problems:
OBD Code 46 - Pass-Key II System Error - Circuit out of Frequency Range
The ECM receives a signal from the Pass-Key module. When the correct signal is
received, the ECM will allow the engine to start and run. Please review
the RepairPal article on the GM Pass-Key Anti-theft systems for more information.
Symptoms:
Common Problems:
OBD Code 43 - Knock Sensor error
The ECM receives a signal from the Knock Sensor based on the amount of engine ping detected. The ECM uses information from this sensor to help calculate fuel delivery and spark timing.
Symptoms:
Common Problems:
OBD Code 55 - End Test.
Hope ehit help (remember comment and rated this).
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