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P3401-MDS SOLENOID 1 CIRCUIT (CONTINUED) For the Engine circuit diagram (Refer to 9 - ENGINE - SCHEMATICS AND DIAGRAMS). For a complete wiring diagram Refer to Section 8W. Theory of Operation When all criteria has been met, power is supplied to each MDS Solenoid when the engine is making a transition • When Monitored: • Set Condition: Possible Causes (K451) MDS SOLENOID NO.1 CONTROL SHORT TO BATTERY VOLTAGE (K451) MDS SOLENOID NO.1 CONTROL SHORT TO GROUND (K451) MDS SOLENOID NO.1 CONTROL OPEN (Z42) GROUND CIRCUIT OPEN MDS SOLENOID NO.1 PCM Always perform the Pre-Diagnostic Troubleshooting procedure before proceeding. (Refer to 9 - ENGINE - Diagnostic Test 1. ACTIVE DTC Ignition on, engine not running. With a scan tool, read DTCs. Is the DTC active at this time? Yes >> Go To 2 No >> Refer to the INTERMITTENT CONDITION Diagnostic Procedure. Perform the POWERTRAIN VERIFICATION TEST. (Refer to 9 - ENGINE - STANDARD PROCEDURE) 9 - 1056 ENGINE ELECTRICAL DIAGNOSTICS WK |