Signal Too Low. Intermittent Fault
Checking Cables And Terminals
- Check throttle position (TP) sensor and engine control module (ECM) connectors for loose connections, contact resistance and oxidation.
- Check cable between throttle position sensor terminal 3 and control module # A16 for an intermittent short-circuit to ground.
- Check cable between throttle position sensor terminal 2 and engine control module (ECM) # A15 for an intermittent open-circuit and an intermittent short-circuit to ground.
- Proceed to: Fault-tracing Information section below.
Fault-tracing Information
For intermittent faults fault-tracing is not followed by a verification because the fault is not present at this moment.
- Do you want to repeat fault-tracing?
Yes:
^ Proceed to: Checking Cables And Terminals section above.
No:
^ Operation done.