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Solenoid Circuit Test

NOTE: Perform this procedure before testing starter relay circuit and starter relay. Ensure vehicle is in Park (automatic transmission) or Neutral (manual transmission) and parking brake is applied.
  1. Ensure battery is fully charged. Ensure solenoid connections are not loose or corroded. Remove starter relay from Power Distribution Center (PDC). Refer to PDC cover for proper relay location. PDC is located in engine compartment.
  2. Connect a remote starter switch or jumper wire between starter relay connector terminal C7 (Cherokee), No. 87 (Grand Cherokee) or B2 (Wrangler) and positive battery post. See Fig 1 , Fig 2 or Fig 3 . If engine cranks, solenoid and starter are good. Go to STARTER RELAY CIRCUIT TEST  .
  3. If engine fails to crank, or if solenoid chatters, check wiring and connectors from starter relay connector to starter solenoid terminal for loose or corroded connections. Clean and retest. If engine still fails to crank, remove starter and proceed to SOLENOID TEST  under BENCH TESTING.
Fig 1: Identifying Starter Relay Terminals (Cherokee)
G00010922Courtesy of CHRYSLER CORP.
Fig 2: Identifying Starter Relay Terminals (Grand Cherokee)
G95G35283Courtesy of CHRYSLER CORP.
Fig 3: Identifying Starter Relay Terminals (Wrangler)
G00010923Courtesy of CHRYSLER CORP.