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Test A: The Speed Control Is Inoperative
PINPOINT TEST A: THE SPEED CONTROL IS INOPERATIVEA1-A4:
A5-A7:
Normal Operation The powertrain control module (PCM) sends a signal through circuit 151 (LB/BK) to the speed control switch which passes through the clockspring. The return signal is sent through circuit 848 (DG/OG).
Possible Causes -
Speed control switches
-
Digital transmission range (TR) sensor
-
PCM