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

Instrumentation, Message Center and Warning Chimes

Pinpoint Tests

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

Normal Operation

The speed control status information is sent to the Instrument Cluster (IC) from the PCM over the communication network.

This pinpoint test is intended to diagnose the following:

- PCM
- IC



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

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W1 CHECK THE SPEED CONTROL OPERATION


- Operate the speed control.
- Does the speed control operate correctly?

Yes
GO to W2.

No
REFER to Cruise Control.

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W2 CARRY OUT THE IC INDICATOR LAMP CONTROL 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. Command the speed control indicator on and off. Observe the speed control indicator.
- Does the speed control indicator illuminate when command on, and turn off when command off?

Yes
INSTALL a new PCM. REFER to Computers and Control Systems Information. 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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