Test A
PINPOINT TEST A: SPEED CONTROL IS INOPERATIVETest A1-A2:
Test A3-A5:
Test A6-A7:
Normal Operation
The powertrain control module (PCM) sends a signal through circuit 7-PG24 (YE/BU) to the speed control switches which passes through the clockspring. The return signal is sent through circuit 31S-PG1 (BK/BU) and the clockspring.
Possible Causes
- circuit 7-PG24 (YE/BU) open, shorted to power or shorted to ground
- circuit 31S-PG1 (BK/BU) open, shorted to power or shorted to ground
- clockspring
- PCM
- speed control switch