See Figures 1, 2 and 3
Prior to testing the coil, perform a secondary spark test. If spark occurs at the spark plug, the coil is functioning properly.
- Turn the ignition OFF .
- Disconnect the negative battery cable.
- Perform a visual inspection of the coil. If the coil is cracked, damaged or oil is leaking from the coil, the coil is faulty.
- Label and disconnect the electrical harness from the ignition coil.
- Inspect the harness connector and ignition coil terminals for dirt, corrosion or damage. Repair as necessary.
- Using an ohmmeter, measure coil primary resistance between the ignition coil terminals. Resistance should be approximately 1 ohm @ 68 degreesF (10 degreesC).
- Measure coil secondary resistance between the ignition coil terminals and the distributor cap high tension lead terminals. Resistance should be approximately 10 kilohms @ 68 degreesF (10 degreesC) on Altima and 10 kilohms @ 68 degreesF (10 degreesC) on 130SX.
- If resistance is not within specification, the coil may be faulty.
REMOVAL & INSTALLATION