650 – Al Req Angle Throttle B
Yellow alarm.
Associated parameter 2.1200.936
Cause
Corrective action
Throttle B opening angle
exceeded.
1. Check charge pressure reserve.
2. Intake air temperature not as per TVU data.
3. Check compressor for contamination.
4. Reduce power.
651 – AL Preheating Error
Yellow alarm.
Associated parameter 1.1480.101
Cause
Corrective action
Engine pre-heating faulty.
1. Low coolant.
2. Lack of differential pressure in coolant system.
3. Coolant pump does not start, is faulty.
652 – AL Transmission Comm Lost
Red alarm.
Associated parameter 1.4510.996
Cause
Corrective action
CAN bus communication to
knock control faulty.
1. Check cabling.
2. Check power supply.
3. Restart ECU, EMU & knock control.
4. Check settings using device-specific dialog software (XD10).
653 – AL IC92x Comm Lost
Red alarm.
Associated parameter 1.4520.996
Cause
Corrective action
CAN bus communication to
ignition system faulty.
u
Check data record.
654 – AL FSeries Comm Lost
Red alarm.
Associated parameter 1.4530.996
Cause
Corrective action
CAN bus communication to
bypass valve faulty.
1. Check cabling.
2. Check power supply.
3. Restart ECU, EMU & bypass valve.
4. Check settings using device-specific dialog software (XD50.3).
140 | Troubleshooting | MS15026/00E 2015-05
TIM-ID: 0000044567 - 003
