Test A
PINPOINT TEST A: THE SPEED CONTROL IS INOPERATIVETest A1:
Test A2-A3:
Test A4-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-PG24 (BK/OG) and the clockspring.
Possible Causes
- circuit 7-PG24 (YE/BU) open, shorted to power or shorted to ground
- circuit 31S-PG24 (BK/OG) open, shorted to power or shorted to ground
- clockspring
- PCM
- speed control switch