MTU 20V4000L32FNER Operating Instructions Manual page 107

1.4520.667 – MIC5 E2 Tr2 index mark not detected
Yellow alarm. Initiated by MIC5.
Cause
Unable to detect index mark of
pulse sensor 2 (B75) in operation.
1.4520.668 – MIC5 E2 Tr2 index to early / faulty
Yellow alarm. Initiated by MIC5.
Cause
Index mark of pulse sensor 2
(B75) detected too early or faulty.
1.4520.669 – MIC5 E2 Tr2 index to late / missing
Yellow alarm. Initiated by MIC5.
Cause
Index mark of pulse sensor 2
(B75) detected too late or
missing.
1.4520.670 – MIC5 E2 Tr3 synchronisation fault
Yellow alarm. Initiated by MIC5.
Cause
Unable to synchronize with signal
from pulse sensor 3 (B13.2).
1.4520.671 – MIC5 E2 Tr3 operational error
Red alarm. Initiated by MIC5.
Cause
Pulse sensor 3 (B13.2) has
tripped an operational error.
1.4520.672 – MIC5 E2 Tr3 no signal detected
Yellow alarm. Initiated by MIC5.
Cause
No signal from pulse sensor 3
(B13.2).
1.4520.673 – MIC5 E2 Tr3 polarity detection fail
Yellow alarm. Initiated by MIC5.
Cause
Unable to detect polarity of pulse
sensor 3 (B13.2).
Corrective action
u Check sensor, sensor gap, cabling, data record settings and timing
wheel. Replace sensor as necessary. (→ Page 204) (→ Page 203)
Corrective action
u Check sensor, sensor gap, cabling, data record settings and timing
wheel. Replace sensor as necessary. (→ Page 204) (→ Page 203)
Corrective action
u Check sensor, sensor gap, cabling, data record settings and timing
wheel. Replace sensor as necessary. (→ Page 204) (→ Page 203)
Corrective action
u Check sensor, sensor gap, cabling, data record settings and timing
wheel. Replace sensor as necessary. (→ Page 204) (→ Page 203)
Corrective action
1. Check sensor, sensor gap, cabling, data record settings and timing
wheel. Replace sensor as necessary. (→ Page 204) (→ Page 203)
2. Restart ignition control unit.
Corrective action
u Check sensor, sensor gap, cabling, data record settings and timing
wheel. Replace sensor as necessary. (→ Page 204) (→ Page 203)
Corrective action
u Check sensor, sensor gap, cabling, data record settings and timing
wheel. Replace sensor as necessary. (→ Page 204) (→ Page 203)
MS150122/02E 2017-09 | Troubleshooting | 107