Test A

PINPOINT TEST A: DTC P1565-THE SPEED CONTROL COMMAND SWITCHES HIGH/OUT OF RANGE

Test A1-A3:

Test A4-A5:

Test A6-A7:

Normal Operation
Under normal operation the powertrain control module (PCM) sends a signal, through circuit 151 (LB/BK) to the speed control switches which passes through the clockspring. The return signal is sent through circuit 848 (DG/OG) and the clockspring.

Possible Causes
- circuit 151 (LB/BK) open, shorted to power or shorted to ground
- circuit 848 (DG/OG) open, shorted to power or shorted to ground
- clockspring
- PCM
- speed control switches