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B2100-IGNITION RUN/START INPUT CIRCUIT PERFORMANCE (CONTINUED) For a complete wiring diagram Refer to Section 8W. • When Monitored: • Set Condition: Possible Causes JUNCTION BLOCK FUSE #18 (F202) FUSED IGNITION SWITCH OUTPUT CIRCUIT OPEN (F202) FUSED IGNITION SWITCH OUTPUT CIRCUIT SHORTED TO GROUND FRONT CONTROL MODULE Diagnostic Test 1. CHECK FOR ACTIVE DTC With the scan tool, read the active DTC’s. Cycle the ignition switch from off to on, leaving the ignition on for a minimum of 90 seconds. With the scan tool, read the active DTC’s. Does the scan tool display this DTC as active? Yes >> Go To 2 No >> If the DTC is stored, check for an intermittent condition. Visually inspect the related wiring harness con- nectors. Look for broken, bent, pushed out, or corroded terminals. 2. INSPECT JUNCTION BLOCK FUSE #18 Turn the ignition off. Remove and inspect Junction Block Fuse #18. Is the fuse open? Yes >> Replace fuse and retest. If fuse continues to fail inspect the wiring between the Junction Block and the Front Con- Perform BODY VERIFICATION TEST – VER 1. No >> Go To 3 HB IGNITION SYSTEM - ELECTRICAL DIAGNOSTICS 8I - 3 |