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P1417–CYLINDER 7 REACTIVATION CONTROL PERFORMANCE (CONTINUED) 2. MDS SOLENOID NO.7 Turn the ignition off. Gain access to the MDS Solenoid No.7. Disconnect the MDS Solenoid No.7 harness connector. Ignition on, engine not running. Turn off all accessories. Using a 12-volt test light connected to the (Z904) Ground circuit, probe With a scan tool, actuate the MDS Solenoid 7. Does the 12-volt test light flash on and off? Yes >> Go To 7 No >> Go To 3 3. (Z42) GROUND CIRCUIT OPEN Turn the ignition off. Using a 12-volt test light connected to the 12-volts, probe the (Z42) Does the test light illuminate brightly? Yes >> Go To 4 No >> Repair the open in the (Z42) Ground circuit. Perform the POWERTRAIN VERIFICATION TEST. (Refer 9 - 784 ENGINE ELECTRICAL DIAGNOSTICS WK |