Possible Causes

CAUTION:

Use the Flex Probe Kit for all test connections to prevent damage to the wiring terminals. Do not use standard multimeter probes.

PINPOINT TEST 4 CHART - NO POWER IN START

PINPOINT TEST 4		NO POWER IN START
STEP	INSPECTION		ACTION
1	CHECK THE STARTER OPERATION Key in START position. Does the starter motor engage?	Yes	Go to next step.
1		No	Install a new ignition switch. See IGNITION SWITCH . Test the system for normal operation.
2	CHECK THE VOLTAGE TO THE IGNITION SWITCH Key OFF. Disconnect: Ignition switch C-250 Measure the voltage between ground and: - ignition switch C-250 pin 2, circuit (Y), harness side. - ignition switch C-250 pin 9, circuit (Y), harness side. Are the voltages greater than 10 volts?	Yes	Go to next step.
2		No	Verify battery junction box (BJB) fuse 9 (40A) is OK. If OK, repair circuit (Y) for an open. Test the system for normal operation.
3	CHECK THE IGNITION SWITCH Carry out the ignition switch component test. See Mazda truck wiring diagrams Is the ignition switch OK ?	Yes	Repair circuit (R/LB) or circuit (LG/V) for an open. Test the system for normal operation.
3		No	Install a new ignition switch. See IGNITION SWITCH . Test the system for normal operation.