One Touch Down Relay Inspection

Remove the one touch down relay.

Inspect for continuity between the one touch down relay terminals using an ohmmeter.

Fig 1: Inspecting One Touch Down Relay

Courtesy of MAZDA MOTORS CORP.

Inspection (no voltage applied)

INSPECTION CHART

Circuit to test	Connect ohmmeter to terminals	A good relay will indicate
Coil	1 and 2	63-102Ω
Contact	3 and 4	Closed circuit
Contact	3 and 5	Open circuit
Coil - Contact	1 and 3	Open circuit
	1 and 4	Open circuit
	1 and 5	Open circuit

Component testing procedure (voltage applied)

Disconnect the ohmmeter; connect pins 2 and 3 to 12V DC power and pin 1 to ground. Measure voltage between pin 5 and pin 1. If the voltage is 12V, continue with the test. If not, replace the relay. Disconnect power from pin 2 and measure voltage between pin 4 and pin 1. If the voltage is 12V, the relay is OK. If not, replace the relay.

If not as specified, replace the one touch down relay.