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C2100-BATTERY VOLTAGE LOW (340) (CONTINUED) For a complete wiring diagram Refer to Section 8W. • When Monitored: • Set Condition: Possible Causes INTERMITTENT BATTERY VOLTAGE LOW DTC (F500) FUSED RUN RELAY OUTPUT CIRCUIT OPEN OR HIGH RESISTANCE (Z107) OR (Z923) GROUND CIRCUIT OPEN OR HIGH RESISTANCE ANTI-LOCK BRAKE MODULE Diagnostic Test 1. DTC IS ACTIVE NOTE: Diagnose and repair any powertrain Charging system DTCs before continuing with this procedure. NOTE: Ensure the battery is fully charged. With the Scan tool, select View DTCs in the Anti-lock Brake Module. Record all DTC information. Turn the ignition off. Start the engine. With the Scan tool read DTCs. Is the status Active for this DTC? Yes >> Go To 2 No >> Go To 4 2. (F500) FUSED RUN RELAY OUTPUT CIRCUIT OPEN OR HIGH RESISTANCE Turn the ignition off. Disconnect the Anti-lock Brake Module harness connector. Check connectors - Clean/repair as necessary. Turn the ignition on. Using a 12–volt test light connected to ground, check the (F500) NOTE: The test light should be illuminated and bright. Compare Is the test light illuminated and bright? Yes >> Go To 3 No >> Repair the (F500) Fused Run Relay Output circuit for an open circuit or high resistance. Perform ABS VERIFICATION TEST - VER 1. (Refer to 5 - 5 - 210 BRAKES - ABS ELECTRICAL DIAGNOSTICS ND |