Pinpoint Test V: The Speed Control Indicator Is Never/Always On

Instrumentation, Message Center and Warning Chimes

Pinpoint Test V: The Speed Control Indicator Is Never/Always On

Normal Operation

The Instrument Cluster (IC) receives the speed control data from the PCM over the High Speed Controller Area Network (HS-CAN). When the speed control is engaged, the PCM provides a signal to the IC to illuminate the speed control indicator.

This pinpoint test is intended to diagnose the following:

- Speed control system
- PCM
- IC



PINPOINT TEST V: THE SPEED CONTROL INDICATOR IS NEVER/ALWAYS ON

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V1 CHECK THE SPEED CONTROL OPERATION


- Verify the speed control operates.
- Does the speed control operate correctly?

Yes
GO to V2.

No
REFER to Cruise Control.

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V2 CARRY OUT THE IC INDICATOR LAMP ACTIVE COMMAND USING THE SCAN TOOL


- Ignition ON.
- Enter the following diagnostic mode on the scan tool: IC DataLogger.
- Select the IC speed control indicator (SC_SET) active command on and off. Observe the speed control indicator.
- Does the speed control indicator illuminate when selected on, and turn off when selected off?

Yes
INSTALL a new PCM. TEST the system for normal operation.

No
INSTALL a new IC. REFER to Instrument Cluster (IC) Instrument Cluster (IC). TEST the system for normal operation.

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