Integrated Control Unit (Without Daytime and Dim-Dip Light) — Input Test (cont'd) (Seat Belt Reminder / Brake Warning System)

16-84spec table

Brake Warning System applies to KQ model only. Seat belt switch ground varies: 2D H/B G511, 4D G561.

Input Test (cont'd)

No.	Terminal	Test condition	Test: desired result	Possible cause (if result is not obtained)
1	G	Under all conditions.	Check for continuity to ground: should be continuity.	• Poor ground (G301, G401). • An open in the wire.
2	C and M	Ignition switch ON.	Check for voltage to ground: should be battery voltage.	• Blown No. 1 (10A) fuse. • An open in the wire.
3	RED/BLU	Driver's seat belt is not buckled.	Check for continuity to ground: should be continuity.	• Faulty seat belt switch. • Poor ground (2D H/B: G511, 4D: G561). • An open in the wire.

TerminalG

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.

TerminalC and M

Test conditionIgnition switch ON.

Test: desired resultCheck for voltage to ground: should be battery voltage.

Possible cause (if result is not obtained)• Blown No. 1 (10A) fuse. • An open in the wire.

TerminalRED/BLU

Test conditionDriver's seat belt is not buckled.

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

Possible cause (if result is not obtained)• Faulty seat belt switch. • Poor ground (2D H/B: G511, 4D: G561). • An open in the wire.

No.	Terminal	Test condition	Test: desired result	Possible cause (if result is not obtained)
1	G	Under all conditions.	Check for continuity to ground: should be continuity.	• Poor ground (G201, G401). • An open in the wire.
2	F	Ignition switch to "III" position.	Check for voltage to ground: should be battery voltage.	• Blown No.2 (10A) fuse. • An open is the wire.
3	E	Ignition switch ON, full brake fluid and parking brake DOWN.	Check for voltage to ground: should be battery voltage.	• Blown No.1 (10A) fuse. • Blown brake warning light bulb. • An open is the wire.

TerminalG

Test conditionUnder all conditions.

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

Possible cause (if result is not obtained)• Poor ground (G201, G401). • An open in the wire.

TerminalF

Test conditionIgnition switch to "III" position.

Test: desired resultCheck for voltage to ground: should be battery voltage.

Possible cause (if result is not obtained)• Blown No.2 (10A) fuse. • An open is the wire.

TerminalE

Test conditionIgnition switch ON, full brake fluid and parking brake DOWN.

Test: desired resultCheck for voltage to ground: should be battery voltage.

Possible cause (if result is not obtained)• Blown No.1 (10A) fuse. • Blown brake warning light bulb. • An open is the wire.