Leading Side IGNITOR
NOTE:
Before starting test, ensure battery is at or near full charge.
CAUTION:
When checking coil with ignitor as shown in following procedure, the high-tension leads must remain connected to the coil. If leads are disconnected, high voltage ignition sparks may occur.
- Disconnect 2-prong connector at leading side ignitor. Connect a voltmeter between "BY" wire terminals. Turn ignition switch to "ON" position. Ensure voltage is about 12 volts. See Fig 1.
- Turn ignition switch to "OFF" position. Disconnect voltmeter and negative battery cable. Connect Ignitor Checker (49 F018 002) between 2-prong connectors.CAUTION: Do not misconnect ohmmeter leads. Ensure "+" lead goes to ground and "-" lead goes to "B" wire. Be sure negative battery cable is disconnected before removing "B" wire from coil with ignitor, or system will be damaged.
- Disconnect "B" wire from coil with ignitor. Reconnect negative battery cable. Connect an ohmmeter between "B" wire and ground. Turn ignition switch to "ON" position. Push up "SW2" switch on ignitor checker while checking ohmmeter. Pointer needle on ohmmeter should jump to about the 1/3 scale, then drop. See Fig 2. Replace ignitor as necessary.