Checking the power supply and ground terminal for the electronic throttle module (ETM)
Checking the power supply
- Check the fuse for the electronic throttle module (ETM) in the fusebox in the engine compartment. If the fuse is blown, check the circuit after the fuse. Check for a short-circuit to ground
- Check the power supply for the electronic throttle module (ETM). The voltage must be approximately battery voltage.
Checking the ground terminal
- Check the ground cable between the electronic throttle module (ETM) and the ground terminal on the engine. Check for an open-circuit
- Check the ground terminal for the electronic throttle module (ETM). Check for contact resistance and oxidation.
Checking the connectors
- Check the connector for the electronic throttle module (ETM). Check for contact resistance and oxidation. Remedy if necessary. Check for any damage.
Remedy as necessary.
Other information
- The power supply for the electronic throttle module (ETM) is from the fuse in the fusebox in the engine compartment via the system relay
- The ground terminal for the electronic throttle module (ETM) is on the front of the cylinder block above the starter motor
- See Throttle body (electronic throttle module (ETM) replacing
- For information about the location of ground terminal for B52X4 S/S2 see Location of components . For information about the location of ground terminal for B52X4 T see Location of components . For information about the location of ground terminal for B6304 S see Location of components . For information about the location of ground terminal for B6284 T see Location of components
- For information about signals on 5-cylinder naturally aspirated engines, see Signal specification
- For information about signals, see ELECTRICAL SYSTEM
- For information about the circuit see the relevant wiring diagram
- See Checking wiring and terminals. Permanent fault .
Was a fault detected?
- YES
Refer to Checking the function of the electronic throttle module (ETM)
- NO
Refer to Signal missing