Daytime Running Light System

16-89spec table

Daytime Running Light system — a market-specific variant (typically KS/Canada). Test conditions 3 and 4 reference the lighting switch position and 5 references the dimmer switch Hi position.

No.	Terminal	Test condition	Test: desired result	Possible cause (if result is not obtained)
1	BLK	Under all conditions.	Check for continuity to ground: should be continuity.	• Poor ground (G301, G401). • An open in the wire.
2	WHT	Under all conditions.	Check for voltage to ground: should be battery voltage.	• An open in the wire.
3	RED/GRN	Lighting switch (position).	Check for voltage to ground: should be battery voltage.	• Faulty lighting switch. • An open in the wire.
4	RED/YEL	Lighting switch (position).	Check for voltage to ground: should be battery voltage.	• Faulty lighting switch. • An open in the wire.
5	RED/BLU	Lighting switch (position). Dimmer switch Hi.	Check for voltage to ground: should be battery voltage.	• Blown No.5 (10A) fuse. • An open in the wire.
6	BLK/YEL	Ignition switch ON.	Check for voltage to ground: should be battery voltage.	• Blown No.16 (10A) fuse. • An open in the wire.
7	RED/BLK	Connect the WHT terminal to the RED/BLK terminal.	Front position lights, taillights and license plate lights should come on.	• Blown bulbs. • An open in the wire.
8	RED/WHT	Connect the WHT terminal to the RED/WHT terminal.	Headlights (Lo) should come on.	• Blown bulbs. • Blown No.10 (10A) or No.11 (10A) fuse. • Poor ground (G201, G301, G401).

TerminalBLK

Test conditionUnder all conditions.

Test: desired resultCheck for continuity to ground: should be continuity.

Possible cause (if result is not obtained)• Poor ground (G301, G401). • An open in the wire.

TerminalWHT

Test conditionUnder all conditions.