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512 – HIHI P-Charge Mix B
Red alarm. Engine shutdown.
Associated parameter 2.0182.932
Cause
Corrective action
Mixture pressure on B side too
high (limit value 2).
1. Check emissions (→ Page 57).
2. Check ignition timing (→ Page 186).
3. Check exhaust back pressure.
4. Check valve clearance (→ Page 187).
5. Check restrictor flap.
6. Check mixture coolant system.
513 – SD P-Coolant Diff
Red alarm.
Associated parameter 1.8004.610
Cause
Corrective action
Coolant differential pressure
sensor faulty, short circuit or wire
break.
u
Check sensors and cabling (B16.1, B16.3), replace as necessary
(→ Page 33) (→ Page 227). Error cleared after restarting the engine.
515 – AL Starter Not Engaged
Yellow alarm.
Associated parameter 2.1090.926
Cause
Corrective action
Starter not engaged. ECU does
not detect engine speed during
starting sequence.
1. Check starter.
2. Check cabling (→ Page 227).
3. Check speed sensor B1.1 if speed is not indicated although engine
517 – SD P-Charge Mix before Throttle
Red alarm.
Associated parameter 1.8004.631
Cause
Corrective action
Mixture pressure sensor before
restrictor flap faulty, short circuit
or wire break.
u
Check sensor and wiring (B79.23), replace as necessary
(→ Page 33) (→ Page 227). Error cleared after restarting the engine.
520 – SD P-Intake Air after Filter A
Yellow alarm.
Associated parameter 1.0186.900
Cause
Corrective action
Intake air pressure sensor after
filter on A side faulty, short circuit
or wire break.
u
Check sensor and cabling (B81.1), replace as necessary
(→ Page 33) (→ Page 227). Error cleared after restarting the engine.
MS150116/04E 2018-04
| Troubleshooting | 153
TIM-ID: 0000038612 - 004