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DL 211+A003-ECU ECU 4 not recognized on default bus 1. Check LOP visually (→ Page 243).
2. Perform LOP test procedures
(→ Page 245).
3. Check ECU plug connection
(→ Page 238).
4. Check engine wiring (→ Page 234).
5. Contact Service.
• Have ECU checked and re‐
placed if required.
DL 211+A004-EMU EMU 1 not recognized on default bus 1. Check LOP visually (→ Page 243).
2. Perform LOP test procedures
(→ Page 245).
3. Check ECU plug connection
(→ Page 238).
4. Check engine wiring (→ Page 234).
5. Contact Service.
• Have EMU checked and re‐
placed if required.
HI P-Oil Filter Differ‐
ence
Oil pressure difference between oil
pressure upstream of filter and oil
pressure downstream of filter too high
Replace engine oil filter (→ Page 211).
MG Start condition
check
Conditions for starting not met Check start conditions and fulfill if nec‐
essary.
RL 211+A001-A001 DIS not recognized on redundant bus 1. Check LOP visually (→ Page 243).
2. Perform LOP test procedures
(→ Page 245).
3. Contact Service.
• Have DIS checked and replaced
if required.
RL 211+A001-A010 LCU of LOP 1 (PIM No. 21.X+A001-
A010) not recognized on redundant
bus
1. Check LOP visually (→ Page 243).
2. Perform LOP test procedures
(→ Page 245).
3. Contact Service.
• Have MPU 23 of PIM No. 21.X
+A001-A010 checked and re‐
placed if required.
RL 211+A001-A020 LMU of LOP 1 (PIM No. 21.X+A001-
A020) not recognized on redundant
bus
1. Check LOP visually (→ Page 243).
2. Perform LOP test procedures
(→ Page 245).
3. Contact Service.
• Have MPU 23 of PIM No. 21.X
+A001-A020 checked and re‐
placed if required.
RL 211+A003-ECU ECU 4 not recognized on redundant
bus
1. Check LOP visually (→ Page 243).
2. Perform LOP test procedures
(→ Page 245).
3. Check ECU plug connection
(→ Page 238).
4. Contact Service.
• Have ECU checked and re‐
placed, if required.
154 | Troubleshooting | MW15550/06E 2012-02
TIM-ID: 0000008898 - 002
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