Check fuse No. 11 (10-amp) located in fuse block, and fuse No. 13 (15-amp) located in Power Distribution Center (PDC). If fuses are okay, go to next step. If any fuse is blown, check associated circuit(s) for short to ground. See WIRING DIAGRAMS .
Disconnect negative battery cable. Disconnect SKIM connector. Using DVOM, check for continuity between ground and SKIM connector terminal No. 5, ground circuit (Black/Light Green wire). See Fig 1 . If continuity exists, go to next step. If continuity does not exist, repair open in Black/Light Green wire between SKIM and ground.
Reconnect negative battery cable. Using DVOM, check for voltage on SKIM connector terminal No. 6, fused B+ circuit (Pink wire). If battery voltage exists, go to next step. If battery voltage does not exist, repair open in Pink wire between SKIM and PDC fuse No. 13 (15-amp).
Turn ignition on. Check voltage on SKIM connector terminal No. 4, fused ignition switch output circuit (Dark Blue/White wire). If battery voltage does not exist, repair open in Dark Blue/White wire between SKIM and fuse block fuse No. 11 (10-amp). If battery voltage exists, proceed to BODY CONTROL MODULES - NEON article for additional SKIS diagnosis.

Fig 1: Identifying Sentry Key Immobilizer Module (SKIM) Connector Terminals

Courtesy of DAIMLERCHRYSLER CORPORATION

When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

• You smell fuel, burning insulation, or see smoke.

• Brakes feel soft, pull hard to one side, or make grinding noises.

• The engine overheats, stalls repeatedly, or misfires under load.

• You are missing required tools, torque specs, or safe lifting equipment.

• You are not confident in the next step or safety outcome.

Safety Warning

Circuit Test