Pinpoint Test E: The Flash-To-Pass Feature Is Inoperative

Headlamps

Pinpoint Tests

Pinpoint Test E: The Flash-To-Pass Feature Is Inoperative

Normal Operation

The Steering Column Control Module (SCCM) monitors input from the multifunction switch. When the multifunction switch is placed in the FLASH-TO-PASS position, the SCCM sends a message to the Body Control Module (BCM) over the High Speed Controller Area Network (HS-CAN), indicating a flash-to-pass request. The BCM then provides voltage to the high beams.

This pinpoint test is intended to diagnose the following:

- Multifunction switch
- SCCM

PINPOINT TEST E: THE FLASH-TO-PASS FEATURE IS INOPERATIVE

NOTICE: Use the correct probe adapter(s) when making measurements. Failure to use the correct probe adapter(s) may damage the connector.

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E1 VERIFY THE HIGH BEAM HEADLAMP OPERATION

- Ignition ON.
- Place the headlamp switch in the HEADLAMPS ON position and activate the high beams.
- Do the high beam headlamps illuminate?

Yes
INSTALL a new multifunction switch. REFER to Steering Column Switches Steering Column Multifunction Switch. TEST the system for normal operation. If the concern still exists, INSTALL a new SCCM. REFER to Steering Column Switches Service and Repair. TEST the system for normal operation.

No
GO to Pinpoint Test B. Pinpoint Test B: One or Both High Beams are Inoperative

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