MTU 20V4000L33F Operating Instructions Manual page 74

1.4510.202 – Knock Sensor Error B1
Red alarm. Initiated by anti-knock control.
Cause
No signal from this knock
sensor.
1.4510.203 – Knock Sensor Error B2
Red alarm. Initiated by anti-knock control.
Cause
No signal from this knock
sensor.
1.4510.204 – Knock Sensor Error B3
Red alarm. Initiated by anti-knock control.
Cause
No signal from this knock
sensor.
1.4510.205 – Knock Sensor Error B4
Red alarm. Initiated by anti-knock control.
Cause
No signal from this knock
sensor.
1.4510.206 – Knock Sensor Error B5
Red alarm. Initiated by anti-knock control.
Cause
No signal from this knock
sensor.
1.4510.207 – Knock Sensor Error B6
Red alarm. Initiated by anti-knock control.
Cause
No signal from this knock
sensor.
74 | Troubleshooting | MS150108/02E 2015-03
Corrective action
1. Check cabling.
2. Check sensor (tightening torque, damage), replace as
necessary.
Corrective action
1. Check cabling.
2. Check sensor (tightening torque, damage), replace as
necessary.
Corrective action
1. Check cabling.
2. Check sensor (tightening torque, damage), replace as
necessary.
Corrective action
1. Check cabling.
2. Check sensor (tightening torque, damage), replace as
necessary.
Corrective action
1. Check cabling.
2. Check sensor (tightening torque, damage), replace as
necessary.
Corrective action
1. Check cabling.
2. Check sensor (tightening torque, damage), replace as
necessary.