Identifying the Defective Circuit

Identifying The Defective Circuit












- Turn the ignition switch to the ON position.
- Activate all injectors one at a time, to identify the defective circuit. Listen for the sound made by the injectors.

Checking Wiring Harness
Jiggle the leads and in-line connectors at several places and in different directions to reveal intermittent breaks and short circuits in the wiring harness. Observe the multimeter, test lamp or diagnostic tool while doing this.

No injector can be heard. Rectifying the Lead - I
One injector cannot be heard. Checking the Valve's Power Supply