Checking Components
Diagnostic trouble code (DTC) ECM-917F may be stored alone but it is very unusual. Usually it is stored together with one or more other diagnostic trouble codes (DTCs) that indicate faults in any of the signals from the accelerator pedal. If one or several of the diagnostic trouble codes (DTCs) ECM-9180, ECM-918F, ECM-950F, ECM-951F, ECM-9520, ECM-958F and/or ECM-959F are stored together with ECM-917F, continue fault-tracing according to one of these diagnostic trouble codes (DTCs). Otherwise, continue as follows.
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. If the diagnostic trouble code (DTC) was stored under operating conditions that means external factors, such as low battery voltage during engine start-up, are suspected to be the cause fault-trace and remedy as necessary. Otherwise, continue as follows.
- Check the cable for the pulse width modulated (PWM) signal between Electronic throttle module (ETM) terminal #1 and Engine control module (ECM) terminal #A56. Check for an open-circuit.
For markets where upgraded software, released during year 2006 or later, is available, the solution may be to download the upgraded software. As the detection time has increased from 0.4to 0.9 seconds, the upgraded software becomes more tolerant towards short intermittent interferences, delays in communication between other CAN connected control modules etc. among other things.
Remedy as necessary.
Other information
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).
- Then turn on the ignition and turn it off again.
- Wait another three minutes. If the electric cooling fan is running, you have to wait another two minutes after the electric cooling fan has stopped, to make sure that Electronic throttle module (ETM) has been shut off correctly.
If this is not done correctly, diagnostic trouble codes may remain even after deleting diagnostic trouble codes and any reconfiguration may remain, despite the problem being fixed.
- Continue
Refer to Information