RAM 2500 Truck 4WD L6-6.7L DSL Turbo VIN A (2007)
Cruise Control Switch: Description and Operation
Description
DESCRIPTION
Two separate switch pods operate the speed control system. The steering-wheel-mounted switches use multiplexed circuits to provide inputs to the PCM
(to the ECM for diesel) for ON, OFF, RESUME, ACCELERATE, SET, DECEL and CANCEL modes. Refer to the Owner's Manual for speed control
switch functions and setting procedures.
The individual switches cannot be repaired. If one switch fails, the entire switch module must be replaced.
Depending on engine control computer (JTEC having a 3- plug connector or NGC having a 4- plug connector), 2 types of switches are used. Both types
of switches are internally and externally different. The switch used with the NGC system has an attached pigtail lead. The switch used with the JTEC
system does not have an attached pigtail lead.
