The ignition and fuel systems must be disabled to prevent engine start while performing the tests.
Connect a volt-ampere tester to the battery terminals. You can use a multi-meter if it has an inductive clamp for reading high amperage.
- Disable the ignition and fuel systems by disconnecting the Automatic Shutdown (ASD) relay, located in the Power Distribution Center (PDC) in the engine compartment.
- Verify that all lights and accessories are Off, and the transaxle shift selector is in Park (automatic) or Neutral (manual). Set the parking brake.
Rotate and hold the ignition switch in the
position. Observe the volt-ampere tester:
WARNINGDo not overheat the starter motor or draw the battery voltage below 9.6 volts during cranking operations.
If the voltage reads above 9.6 volts, and the amperage draw reads above 250 amps, go to the starter feed circuit resistance test (following this test).
- After the starting system problems have been corrected, verify the battery state of charge and charge the battery if necessary. Disconnect all of the testing equipment and connect the ignition coil cable or ignition coil connector. Start the vehicle several times to assure the problem was corrected.