Operation CHARM: Car repair manuals for everyone.

Test A

PINPOINT TEST A: THE ENGINE DOES NOT CRANK OR RELAY CLICKS


Test A1-A3:






Test A4-A6:






Test A7-A9:






Test A10-A11:






Test A12-A13:






Normal Operation
Under normal operation the PDB supplies constant power to the starter relay on circuit 1050 (LG/VT) through fuse 12 (50A). When the key is placed in the START position, with the vehicle in PARK or NEUTRAL, the TR sensor provides power on circuit 33 (WT/PK) and the PCM provides ground on circuit 461 (OR). The coil of the relay is energized and sends power to the starter motor on circuit 113 (YE/LB).