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Test A: DTC P1565 - The Speed Control Command Switches High/Out of Range

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


A1-A2:






A2-A5:






A5-A7:






A7 Continued:






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) short to voltage
- circuit 848 (DG/OG) open
- clockspring
- PCM
- speed control switch
- horn switch wiring harness