by John
(Sydney)
The engine stops randomly (at idle or in-gear). Check Engine appears on the 4" colour display. The Warning Manager shows "Communications Failure", but no fault codes appear or are generated. All temps and pressures (at least according to the gauges) are fine.
Clear the Check Engine faults. It re-starts and runs fine (until it happens again).
All new batteries (we were told it was caused by a voltage drop due to a battery problem somewhere).
Checked and wiggled all connectors on the ECU, HCU and PCU while the engine is running. No problem.
We had a Volvo Engine Service Agent put the Vodia on it. No fault codes.
The engine has only done 135 hours. It has been serviced every year and looks in new condition.
Any assistance would be greatly appreciated.