Axiom 2WD V6-3.5L (2002)
58X Reference PCM Input
The powertrain control module (PCM) uses this signal from the crankshaft position (CKP) sensor to calculate engine RPM and crankshaft position at all
engine speeds.The PCM also uses the pulses on this circuit to initiate injector pulses.If the PCM receives no pulses on this circuit, DTC P0337 will set.
The engine will not start and run without using the 58X reference signal.
PCM Service Precautions
The PCM is designed to withstand normal current draws associated with vehicle operation.Avoid overloading any circuit.When testing for opens and
shorts, do not ground or apply voltage to any of the PCM"s circuits unless instructed to do so.These circuits should only be tested using digital voltmeter
J 39200.The PCM should remain connected to the PCM or to a recommended breakout box.
Reprogramming the PCM
Reprogramming of the PCM is done without removing it from the vehicle . This provides a flexible and cost-effective method of making changes in
software calibrations.
Refer to the latest Techline information on reprogramming or flashing procedures.
