Savana 2500 V6-4.3L VIN X (2005)
Steps 1-13
Power Mode Mismatch
POWER MODE MISMATCH
CIRCUIT DESCRIPTION
Normal vehicle class 2 communications and module operations will not begin until the system power mode has been identified. Discrete wires from
the ignition switch contacts are monitored by the power mode master (PMM) module in order to determine the correct power mode. The PMM
