Multi-Function Switch - Component Test

Measure the resistance between the multifunction switch terminals.

Fig 1: Identifying Multifunction Switch Terminals
Courtesy of MAZDA MOTORS CORP.

MULTIFUNCTION SWITCH TERMINALS SPECIFICATION

Function	Multifunction Switch Position	Terminals	Resistance Values
Washer	ON	590 and 993	Less than 5 Ohms
	OFF	590 and 993	Greater than 10,000 Ohms
Wiper	OFF	685 and 993	Approx. 47,000 Ohms
	INT	685 and 993	Approx. 11,000 Ohms
	LO	685 and 993	Approx. 4,000 Ohms
	HI	685 and 993	Less than 5 ohms
Wiper	OFF	685 and 590	Approx. 150,000 Ohms
	INT	685 and 590	Between 14,000 Ohms and 11,000 Ohms
	LO	685 and 590	Approx. 7,200 Ohms
	HI	685 and 590	Approx. 3,200 Ohms
Wiper	OFF	590 and 993	Approx. 100,000 Ohms
	INT	590 and 993	Between 100,000 Ohms and 3,200 Ohms
	LO	590 and 993	Approx. 3,200 Ohms
	HI	590 and 993	Approx. 3,200 Ohms
Stoplamp Input	Center (No Turn) Position	511 and 9, 511 and 5	Less Than 5 Ohms
Hazard	ON	385 and 5, 385 and 3, 385 and 9	Less than 5 Ohms
	OFF	385 and 5, 385 and 3, 385 and 9	Greater than 10,000 Ohms
Left Turn Signal	Place the Multifunction Switch in the Left Turn Position	44 and 3, 44 and 9	Less than 5 Ohms
Right Turn Signal	Place the Multifunction Switch in the Right Turn Position	44 and 5, 44 and 2	Less than 5 Ohms
High Beam	Place the Multifunction Switch in the High Beam Position	15 and 12	Less than 5 Ohms
Low Beam	Place the Multifunction Switch in the Low Beam Position	15 and 507	Less than 5 Ohms
Flash-To-Pass	Hold the Multifunction Switch in the Flash-To-Pass Position	196 and 12, 15 and 507	Less than 5 Ohms

If the resistances are as specified, the multifunction switch is OK. Return the multifunction switch to the vehicle. Test the system for normal operation. If the resistances are not as specified, Replace the multifunction switch. See MULTI-FUNCTION SWITCH REMOVAL/INSTALLATION . Test the system for normal operation.