HB6 - Check Resistance of Injector(s) and Harness
- Key "OFF".
- Disconnect Powertrain Control Module (PCM). Inspect for damaged or pushed out pins, corrosion, loose wires, etc. Service as necessary.
NOTE: This erases Continuous Memory.
- Install breakout box, leave PCM disconnected.
- Measure resistance between the suspect injector circuit test pin and test pin 37 at the breakout box. Record resistance.
- For No Starts:
- Pick any injector and measure resistance between injector circuits test pin and test pin 37 at the breakout box. Record resistance.
Specification
Single Injector resistance 11.0-18.0 Ohms
- Is each resistance within specification for the appropriate engine?
Yes -- Go to HB9. HB9 - Check Injector Driver Signal
No -- For NO Start: Service open in VPWR circuit.
For others: Go to HB7. HB7 - Check Continuity of Fuel Injector Harness