Sentry Key Immobilizer System (Skis): Cherokee

1. Remove and inspect fuse No. 27 (20-amp) in Power Distribution Center (PDC), located in engine compartment. See Fig 1 . If fuse is okay, go to next step. If fuse is blown, locate and repair cause of blown fuse. Install new fuse and recheck system operation.
2. Using DVOM, check for battery voltage between ground and power side of fuse No. 27. If battery voltage exists, go to next step. If battery voltage does not exist, locate and repair open circuit between battery and PDC.
3. Remove and inspect fuse No. 9 (10-amp) in junction block. If fuse is okay, go to next step. If fuse is blown, locate and repair cause of blown fuse. Install new fuse and recheck system operation.
4. Turn ignition on. Using DVOM, check for battery voltage between ground and power side of fuse No. 9. If battery voltage exists, go to next step. If battery voltage does not exist, locate and repair open circuit between ignition switch and junction block.
5. Turn ignition off. Disconnect negative battery cable. Locate and disconnect Sentry Key Immobilizer Module (SKIM) and disconnect electrical connector. See Fig 2 . Using DVOM, check for continuity between ground and SKIM connector terminals No. 3 (Black/Light Blue wire) and No. 5 (Black wire). See Fig 3 . If continuity is indicated, go to next step. If continuity is not indicated, repair open in Black/Light Blue or Black wire between SKIM and ground.
6. Reconnect negative battery cable. Using DVOM, check for battery voltage between ground and SKIM connector terminal No. 6 (Pink/Red wire). If battery voltage is indicated, go to next step. If battery voltage is not indicated, repair open in Pink/Red wire between SKIM and fuse box.
7. Turn ignition on. Using DVOM, check for battery voltage between ground and SKIM connector terminal No. 4 (Dark Blue wire). If battery voltage is indicated, diagnose SKIM using scan tool. See appropriate ANTI-THEFT SYSTEMS article for diagnostic information. If battery voltage is not indicated, repair open in Dark Blue wire between SKIM and fuse box.

Fig 1: Identifying Power Distribution Center

Courtesy of DAIMLERCHRYSLER CORPORATION

Fig 2: Locating SKIM Module

Courtesy of CHRYSLER CORP.

Fig 3: Identifying SKIM Connector Terminals

Courtesy of CHRYSLER CORP.