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

Headlamps

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 (Steering Column Control Module) 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 (Body Control Module) then provides voltage to the high beams.

This pinpoint test is intended to diagnose the following:

- Multifunction switch

- SCCM (Steering Column Control Module)

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.

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. TEST the system for normal operation.

If the concern still exists, INSTALL a new SCCM (Steering Column Control Module). TEST the system for normal operation.
No
GO to Pinpoint Test B. Pinpoint Test B: One Or Both High Beams are Inoperative