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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 202).
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 cabling (B79.23), replace as necessary
(→ Page 203) (→ Page 202). 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 203) (→ Page 202). Error cleared after restarting the
engine.
522 – SD P-Intake Air after Filter B
Yellow alarm.
Associated parameter 1.0187.900
Cause
Corrective action
Intake air pressure sensor after
filter on B side faulty, short circuit
or wire break.
u
Check sensor and cabling (B81.2), replace as necessary
(→ Page 203) (→ Page 202). Error cleared after restarting the
engine.
534 – HIHI Power Difference
Red alarm. Engine shutdown.
Associated parameter 2.1005.931
Cause
Corrective action
Set and actual power deviate
excessively from each other.
1. Check converter.
2. Check fuel settings.
3. Check emissions (→ Page 47).
MS150104/03E 2017-09
| Troubleshooting | 143
TIM-ID: 0000038612 - 003