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3. (A29) FUSED B+ CIRCUIT OPEN OR HIGH RESISTANCE Turn the ignition off. Using a 12 volt test light connected to ground, check the (A29) Fused NOTE: The test light should be illuminated and bright. Compare Is the test light illuminated and bright? Yes >> Go To 4 No >> Repair the (A29) Fused B+ circuit for an open circuit or high resistance. Perform the ECM Verification Test Ver. 1. (Refer to 9 - 4. (Z924) GROUND CIRCUIT OPEN OR HIGH RESISTANCE Using a 12 volt test light connected to B+, check the (Z924) Ground NOTE: The test light should be illuminated and bright. Compare Is the test light illuminated and bright? Yes >> Replace the Glow Plug Module in accordance with the Ser- vice Information. Perform the ECM Verification Test Ver. 1. (Refer to 9 - No >> Repair the (Z924) Ground circuit for an open circuit or high resistance. Perform the ECM Verification Test Ver. 1. (Refer to 9 - PM ENGINE ELECTRICAL DIAGNOSTICS - DIESEL 9 - 1331 |