MTU 12 V 4000 Lx4 Operating Instructions Manual page 73

1.4510.192 – Knock Sensor Error A1
Red alarm. Initiated by antiknock control.
Cause
No signal from this knock
sensor.
1.4510.193 – Knock Sensor Error A2
Red alarm. Initiated by antiknock control.
Cause
No signal from this knock
sensor.
1.4510.194 – Knock Sensor Error A3
Red alarm. Initiated by antiknock control.
Cause
No signal from this knock
sensor.
1.4510.195 – Knock Sensor Error A4
Red alarm. Initiated by antiknock control.
Cause
No signal from this knock
sensor.
1.4510.196 – Knock Sensor Error A5
Red alarm. Initiated by antiknock control.
Cause
No signal from this knock
sensor.
1.4510.197 – Knock Sensor Error A6
Red alarm. Initiated by antiknock control.
Cause
No signal from this knock
sensor.
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.
MS15027/00E 2013-10 | Troubleshooting | 73