Checking Power and Ground Terminal - Throttle Unit
Checking the power supply and ground terminals for the throttle unit
Checking the power supply and ground terminals for the throttle unit
Note! Click here if you are working on the S80.
Checking power supply terminal
- Check fuse 11 B/2. If the fuse is blown check the circuit after the fuse for a short-circuit to ground according to Checking wiring and terminals. Permanent fault Checking Wiring and Terminals. Permanent Fault.
- Check the power supply to throttle unit #6. The voltage should be approximately battery voltage.
Checking ground terminal
- Check the ground lead between throttle unit #5 and engine ground terminal ETM 31/91 for an open-circuit according to Checking wiring and terminals. Permanent fault Checking Wiring and Terminals. Permanent Fault.
- Check the throttle unit ground terminal for contact resistance and oxidation according to Checking wiring and terminals. Permanent fault Checking Wiring and Terminals. Permanent Fault.
Remedy as necessary
Other information
- Power supply to electronic throttle module #6 is from fuse 11 B/2 via the system relay.
- Ground terminal 31/91 for the electronic throttle module is located on the front of the cylinder block above the starter motor
- For information about other signals, see Signal specification Signal Description / Specification.
- For further information about the circuit, see the relevant wiring diagram
Is the power and ground terminal OK?
Yes - DONE
No - Fault-tracing information
-------------------------------------------------
Fault-tracing information
Information
Fault-tracing information
The fault should have been detected and remedied. As this is not the case fault-tracing has failed.
Exit fault-tracing for this diagnostic trouble code (DTC) or make another attempt.
Do you want to exit fault-tracing?
Yes - FAULT-TRACING FAILED
No - Attempt New Test
------------------------
Attempt New Test - Checking the power supply and ground terminals for the throttle unit
FAULT-TRACING FAILED - FAULT-TRACING FAILED
-------------------------------------------------