TEST
ACTION
APPLICABILITY
3
Turn the ignition off.
Disconnect the applicable Body Control Module harness connector.
Disconnect the Multifunction Switch harness connector.
Measure the resistance of the High Beam Switch MUX circuit from the Body Control
Module connector to the Multifunction Switch harness connector.
Is the resistance above 5.0 ohms?
All
Yes
→ Repair the High Beam Switch MUX circuit for an open.
Perform BODY VERIFICATION TEST - VER 1.
No
→ Go To 4
4
Turn the ignition off.
Disconnect the applicable Body Control Module harness connector.
Disconnect the Multifunction Switch harness connector.
Measure the resistance of the Multifunction Switch MUX Return circuit from the
Body Control Module connector to the Multifunction Switch harness connector.
Is the resistance above 5.0 ohms?
All
Yes
→ Repair the Multifunction Switch MUX Return circuit for an open.
Perform BODY VERIFICATION TEST - VER 1.
No
→ Replace the Body Control Module.
Perform BODY VERIFICATION TEST - VER 1.
577
EXTERIOR LIGHTING
HIGH BEAM SWITCH INPUT OPEN —
Continued