Checking the power supply and ground terminals
Use the diagnostic trouble codes' frozen values as well as the counters, to determine the driving conditions when the problem was detected the first time and how often the problem has occurred. The values show the problem's current status and how intermittent the problem is.
Check if the diagnostic trouble code has been generated during engine start and if the battery voltage was very low at that time. If this is the case, this may indicate a poorly charged battery, corroded connections or poor battery cables.
- Check that the connector connections for Electronic throttle module (ETM) are OK and that there is voltage and ground connection for Electronic throttle module (ETM). At ignition on, a beeping sound shall be heard from the throttle module for a short time, when it is supplied with voltage.
- Check that the battery voltage in the vehicle is normal and that the battery's charging status is OK. Also check that the battery cables and their connections to the vehicle are in good condition as well as that connections to the battery are installed correctly and not corroded.
- For markets where upgraded software, released during year 2006 or later, is available, the solution may be to download the upgraded software. Since detection time is increased from 0.13 to 10 seconds, the upgraded software is much more tolerant against brief intermittent interference.
Erase the diagnostic trouble codes (DTCs). If the problem still can be recreated, despite above actions, try with a new throttle module unit.
Other information
- See Identifying upgraded software ECM/ETM
- See Checking wiring and terminals
- See Throttle body (electronic throttle module (ETM), replacing
- See Replacing the throttle body (electronic throttle module)
Caution! In order for Electronic throttle module (ETM) to reset any reconfigurations as well as delete internally stored problems, the following must be performed:
- Ignition off, wait three minutes so that the main relay / system relay releases the voltage feed to, among other, Electronic throttle module (ETM).
- Switch on the ignition again.
- Wait another three minutes, but if the electric cooling fan is running you have to wait another two minutes after the cooling fan has stopped, to ensure that Electronic throttle module (ETM) is shut off correctly.
If this is not done correctly, diagnostic trouble codes may remain even after deletion of diagnostic trouble codes as well as any reconfiguration, despite the problem being fixed.
- Continue
Refer to Information