MTU 12 V 2000 P12 Operating Instructions Manual page 69

Fault code Fault message
187 CAN 1 ERROR PAS‐
SIVE
188 CAN 2 BUS OFF
189 CAN 2 ERROR PAS‐
SIVE
201 SD T-COOLANT
202 SD T-FUEL
203 SD T-CHARGE AIR
205 SD T-COOLANT IN‐
TERC.
206 SD T-EXHAUST A
207 SD T-EXHAUST B
208 SD P-CHARGE AIR
211 SD P-LUBE OIL
212 SD P-COOLANT
Meaning
CAN 1 in Error-Passive
state, minor bus disruption
or missing CAN node .
CAN 2 in Bus-Off state:
• Either short circuit on
bus.
• Or strong magnetic
fields disrupting bus.
CAN 2 in Error-Passive
state, minor bus disruption
or missing CAN node .
Sensor B06 faulty (coolant
temperature).
Sensor B33 faulty (fuel
temperature).
Sensor B09 faulty (charge
air temperature) A-side.
Sensor fault (charge-air
coolant temperature).
Sensor B4.21 faulty (ex‐
haust temperature ) engine
side A.
Sensor B4.22 faulty (ex‐
haust temperature ) engine
side B.
Sensor B10 faulty (charge-
air pressure) A-side.
Sensor B05 faulty (lube oil
pressure).
Sensor B16 faulty (coolant
pressure).
MS150025/02E 2012-10 | Troubleshooting | 69
Action
Contact Service.
• Check that at least one CAN
node is present. Check cabling
as necessary.
• Check shielding, improve shield‐
ing as necessary.
Contact Service.
• Check CAN bus for short circuit,
rectify short circuit as necessary.
• Check shielding, improve shield‐
ing as necessary.
Contact Service.
• Check that at least one CAN
node is present. Check cabling
as necessary.
• Check shielding, improve shield‐
ing as necessary.
1. Check cabling (→ Engine oper‐
ating instructions);
2. Contact Service
• Check sensor.
1. Check cabling (→ Engine oper‐
ating instructions);
2. Contact Service
• Check sensor.
1. Check cabling (→ Engine oper‐
ating instructions);
2. Contact Service
• Check sensor.
1. Check cabling (→ Engine oper‐
ating instructions);
2. Contact Service
• Check sensor.
1. Check cabling (→ Engine oper‐
ating instructions);
2. Contact Service
• Check sensor.
1. Check cabling (→ Engine oper‐
ating instructions);
2. Contact Service
• Check sensor.
1. Check cabling (→ Engine oper‐
ating instructions);
2. Contact Service
• Check sensor.
1. Check cabling (→ Engine oper‐
ating instructions);
2. Contact Service
• Check sensor.
1. Check cabling (→ Engine oper‐
ating instructions);
2. Contact Service
• Check sensor.