MTU 12 V 4000 L63 Operating Instructions Manual page 86

153122 – Knock Sensor Error B2
Red alarm. Initiated by antiknock control.
Cause
No signal received from this
knock sensor.
153123 – Knock Sensor Error B3
Red alarm. Initiated by antiknock control.
Cause
No signal received from this
knock sensor.
153124 – Knock Sensor Error B4
Red alarm. Initiated by antiknock control.
Cause
No signal received from this
knock sensor.
153125 – Knock Sensor Error B5
Red alarm. Initiated by antiknock control.
Cause
No signal received from this
knock sensor.
153126 – Knock Sensor Error B6
Red alarm. Initiated by antiknock control.
Cause
No signal received from this
knock sensor.
153127 – Knock Sensor Error B7
Red alarm. Initiated by antiknock control.
Cause
No signal received from this
knock sensor.
86 | Troubleshooting | MS150058/01E 2012-07
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.