Pinpoint Tests AA: The Daytime Running Lamps (DRL) Indicator Is Never/Always On

Instrumentation, Message Center and Warning Chimes

Pinpoint Tests

Pinpoint Test AA: The Daytime Running Lamps (DRL) Indicator Is Never/Always On

Normal Operation

When the Daytime Running Lamps (DRL) is on, the Smart Junction Box (SJB) sends a message over the communication network to the Instrument Cluster (IC) to illuminate the DRL indicator.

This pinpoint test is intended to diagnose the following:

- SJB
- IC



PINPOINT TEST AA: THE DRL INDICATOR IS NEVER/ALWAYS ON

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AA1 CHECK THE DRL OPERATION


- Check the operation of the DRL.
- Does the DRL operate correctly?

Yes
GO to AA2.

No
REFER to Daytime Running Lamp. Testing and Inspection

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AA2 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 all warning lamps (ALL_LAMP) active command on and off while monitoring the DRL indicator.
- Does the DRL indicator illuminate when commanded on, and turn off when commanded off?

Yes
INSTALL a new SJB. 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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