MTU 12 V 4000 M23F Operating Instructions Manual page 139

397 – TD P-Oil Sensor Deviation
Cause
Maximum lube oil pressure
deviation.
400 – AL Open Load Digital Input 1
Line disruption on digital input 1
Yellow alarm; warning
Cause
Wiring faulty.
No resistance over switch.
401 – AL Open Load Digital Input 2
Line disruption on digital input 2
Yellow alarm; warning
Cause
Wiring faulty.
No resistance over switch.
402 – AL Open Load Digital Input 3
Line disruption on digital input 3
Yellow alarm; warning
Cause
Wiring faulty.
No resistance over switch.
403 – AL Open Load Digital Input 4
Line disruption on digital input 4
Yellow alarm; warning
Cause
Wiring faulty.
No resistance over switch.
ZKP-Number: 1.0480.293
Corrective action
1. Check wiring and sensor.
2. Contact Service.
ZKP-Number: 2.8006.625
Corrective action
1. Check wiring (→ Page 265).
2. Check target device input.
3. Contact Service.
ZKP-Number: 2.8006.626
Corrective action
1. Check wiring (→ Page 265).
2. Check target device input.
3. Contact Service.
ZKP-Number: 2.8006.627
Corrective action
1. Check wiring (→ Page 265).
2. Check target device input.
3. Contact Service.
ZKP-Number: 2.8006.628
Corrective action
1. Check wiring (→ Page 265).
2. Check target device input.
3. Contact Service.
MS150068/01E 2014-01 | Troubleshooting | 139