Integrated Control Unit (Without Daytime and Dim-Dip Light) — Input Test (Wiper System / Light-on Warning System)

16-83spec table

Wiper system connector layout differs Except KY model vs KY model only. Light-on Warning System table applies to Except KY model. [ ] = RHD.

Wiper System:

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 [G201, G401])
2	BLU/WHT1 and BLU/WHT2	Wiper switch OFF or INT and wiper blades in park position.	Check for continuity between the BLU/WHT1 and BLU/WHT2 terminals: should be continuity.	• Faulty wiper switch. • Faulty wiper motor. • An open in the wire.
3	GRN	Ignition switch ON and wiper switch INT.	Check for voltage to ground: should be battery voltage.	• Blown No. 13 (15A) fuse. • Faulty wiper switch. • 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 [G201, G401])

TerminalBLU/WHT1 and BLU/WHT2

Test conditionWiper switch OFF or INT and wiper blades in park position.

Test: desired resultCheck for continuity between the BLU/WHT1 and BLU/WHT2 terminals: should be continuity.

Possible cause (if result is not obtained)• Faulty wiper switch. • Faulty wiper motor. • An open in the wire.

TerminalGRN

Test conditionIgnition switch ON and wiper switch INT.

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

Possible cause (if result is not obtained)• Blown No. 13 (15A) fuse. • Faulty wiper switch. • 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 (G301, G401 [G201, G401]). • An open in the wire.
2	A	Lighting switch ON.	Check for voltage to ground: should be battery voltage.	• Blown No. 8 (10A) fuse. • Faulty lighting switch. • An open in the wire.
3	M	Ignition switch ON.	Check for voltage to ground: should be battery voltage.	• Blown No.1 (10A) fuse. • An open in the wire.
4	GRN/RED	Passenger door open.	Check for continuity to ground: should be continuity. NOTE: Before testing remove No.12 (15A) fuse.	• Faulty passenger door switch. • An open in the wire.
5	GRN/BLU	Driver door open.	Check for continuity to ground: should be continuity.	• Faulty driver door switch. • 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 [G201, G401]). • An open in the wire.

TerminalA

Test conditionLighting switch ON.

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

Possible cause (if result is not obtained)• Blown No. 8 (10A) fuse. • Faulty lighting switch. • An open in the wire.

TerminalM

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.

TerminalGRN/RED

Test conditionPassenger door open.

Test: desired resultCheck for continuity to ground: should be continuity. NOTE: Before testing remove No.12 (15A) fuse.

Possible cause (if result is not obtained)• Faulty passenger door switch. • An open in the wire.

TerminalGRN/BLU

Test conditionDriver door open.

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

Possible cause (if result is not obtained)• Faulty driver door switch. • An open in the wire.

[ ]: RHD (cont'd)