Defogger & Folding Switch Circuit Test
- Turn ignition off. Disconnect defogger and folding switch harness connectors. Turn ignition on. Using a voltmeter, check voltage between ground and defogger switch connector (harness side) at terminal No. 4. See Fig 1
. Battery voltage should be present. If battery voltage is not present, heater circuit or heater element is faulty. Repair as necessary.
- Turn ignition off. Using an ohmmeter, check for continuity between folding switch harness connector terminals No. 4 and 7, between terminal No. 5 and ground, then between terminal No. 8 and ground. See Fig 2
. Continuity should be present in all checks.
- Turn ignition on. Using a voltmeter, check voltage between ground and connector terminal No. 6. Battery voltage should be present. If switch wiring circuit does not test as previously described, repair appropriate wiring circuit as necessary.
Courtesy of ISUZU MOTOR CO.
Courtesy of ISUZU MOTOR CO.