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733 – AL L1 T-Exhaust After DPF
ZKP-Number: 2.0202.921
L1 T-Exhaust after DPF violated
Yellow alarm – warning
Cause
Corrective action
Obstructed charge-air circuit or
fault in turbocharger.
1. Reduce power.
2. Check air filter.
3. Contact Service.
734 – AL L2 T-Exhaust After DPF
ZKP-Number: 2.0202.922
L2 T-Exhaust after DPF violated
Red alarm
Cause
Corrective action
Obstructed charge-air circuit or
fault in turbocharger.
1. Reduce power.
2. Check air filter.
3. Contact Service.
735 – AL L1 P-DPF Difference
ZKP-Number: 2.0203.921
L1 P-DPF differential pressure violated
Yellow alarm – warning
Cause
Corrective action
Excessive pressure loss in DPF
due to contamination.
1. Check DPF.
2. Contact Service.
736 – AL L2 T-DPF Difference
ZKP-Number: 2.0203.922
L2 P-DPF differential pressure violated
Red alarm
Cause
Corrective action
Excessive pressure loss in DPF
due to contamination.
1. Check DPF.
2. Contact Service.
737 – AL L1 P-DPF Differential Pressure Standard
ZKP-Number: 2.1602.921
L1 P-DPF differential pressure standard violated
Yellow alarm – warning
Cause
Corrective action
Excessive pressure loss in DPF
due to contamination.
1. Check DPF.
2. Contact Service.
96 | Troubleshooting | MS150112/01E 2014-10
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