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G552275t87 : CHECK FOR SHORT CIRCUIT BETWEEN THE SIGNAL AND 1. Measure the resistance between: C100, harness side C100, harness side Pin M2
Pin M3
Is the resistance greater than 100 Kohms? -> Yes GO to Pinpoint Test G552275t88.
-> No GO to Pinpoint Test G552275t93.
G552275t88 : CHECK THE FUEL INJECTOR CIRCUIT FOR HIGH RESISTANCE 1. Disconnect the fuel injector 6 (INJ5) connector, C49. 2. Measure the resistance between: C49, harness side C100, harness side Pin 02
Pin M2
Pin 01
Pin M3
Are the resistances less than 10 ohms? -> Yes An intermittent fault may be present in the wiring harness. Visually check for chaffed wires or other physical damage to the harness. If no fault is found in the circuit, suspect the following component(s): - Fuel injector 6 (INJ5) connector - ECM connector - Fuel injector 6 (INJ5)
-> No REPAIR the high resistance circuit. For additional information, refer to the wiring diagrams. Clear any DTCs, test the system for normal operation. G552275t89 : CHECK THE FUEL INJECTOR CIRCUIT FOR SHORT CIRCUIT TO 1. Key on, engine off. 2. Measure the resistance between: |