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• When Monitored: • Set Condition: Possible Causes (K343) ASD RELAY OUTPUT 2 CIRCUIT (K13) INJECTOR CONTROL NO.3 CIRCUIT OPEN (K13) INJECTOR CONTROL NO.3 CIRCUIT SHORTED TO GROUND FUEL INJECTOR 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) 2. (K343) ASD RELAY OUTPUT 2 CIRCUIT Turn the ignition off. Disconnect the No.3 Fuel Injector harness connector. Ignition on, engine not running. With the scan tool, actuate the ASD Relay. Using a 12-volt test light connected to ground, backprobe the (K343) Does the test light illuminate brightly? Yes >> Go To 3 No >> Repair the excessive resistance or short to ground in the (K343) ASD Relay Output 2circuit. Perform the POWERTRAIN VERIFICATION TEST. (Refer 3. FUEL INJECTOR Using a 12-volt test light connected to 12-volts, backprobe the (K13) Injector Control No.3 circuit. With the scan tool, actuate the No.3 Fuel Injector. What is the state of the test light during the actuation? Brightly Blinking. Replace the Fuel Injector. Perform the POWERTRAIN VERIFICATION TEST. (Refer to 9 - ENGINE - STANDARD PROCEDURE) 9 - 232 ENGINE ELECTRICAL DIAGNOSTICS LX |