Symptom Table

NOTE: Refer to Description and Operation, Intelligent Access (IA) with Push Button Start in ANTI-THEFT SYSTEM - PASSIVE ANTI-THEFT SYSTEM (PATS) article to review the procedures for achieving the various ignition states (ignition off, ignition in accessory, ignition on, ignition start) on vehicles with this feature.

SYMPTOM TABLE

Condition	Possible Sources	Action
No communication with the Headlamp Control Module 2 (HCM-2)	Fuse Wiring, terminals or connectors HCM-2	REFER to MODULE COMMUNICATIONS NETWORK article.
The low beams turn on after a 5 second delay when the headlamp switch is placed in the HEADLAMPS ON position	Wiring, terminals or connectors Headlamp switch Smart Junction Box (SJB)	GO to PINPOINT TEST E .
Both high beams are inoperative	Fuse Wiring, terminals or connectors Multifunction switch SJB	VERIFY the bulbs are OK, If OK, GO to PINPOINT TEST A .
The automatic high beam feature is inoperative	Windshield debris Fuse Wiring, terminals or connectors Automatic high beam control relay HCM-2	GO to PINPOINT TEST B .
One low beam headlamp is inoperative	Fuse Wiring, terminals or connectors Ballast High Intensity Discharge (HID) bulb Headlamp assembly SJB	VERIFY the bulb is OK, If OK, GO to PINPOINT TEST C .
One high beam headlamp is inoperative	Wiring, terminals or connectors Headlamp assembly	VERIFY the bulb is OK, If OK, GO to PINPOINT TEST D .
The low beam(s) are always on	Wiring, terminals or connectors Headlamp switch Ballast SJB	GO to PINPOINT TEST E .
The high beam(s) are always on	Wiring, terminals or connectors Automatic high beam control relay Multifunction switch HCM-2 SJB	GO to PINPOINT TEST F .
The flash-to-pass feature is inoperative	Wiring, terminals or connectors Multifunction switch SJB	GO to PINPOINT TEST G .