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1134 – AL_SD_T_RA_prefeed_module
Cause
The signal from the temperature
sensor for reducing agent at the
pre-feed module (B103) is faulty
or missing. Substitute value is
used.
1136 – AL_SD_p_RA_prefeed_module
Cause
The signal from the pressure
sensor for reducing agent after
filter agent in pre-feed module
(B102) is faulty or missing.
Substitute value is used.
1137 – AL_SD_T_heater_cartridge_at_PFM
Cause
The signal from the temperature
sensor of the cartridge heater in
the pre-feed module (B106) is
faulty or missing. Substitute value
is used.
1140 – AL_LO1_p_RA_prefeed_module
Cause
The pressure of the reducing
agent in the pre-feed module
measured at sensor B102 is too
low. Pre-feed module remains in
pumping mode.
1141 – AL_HI1_p_RA_prefeed_module
Cause
The pressure of the reducing
agent at pressure side of the pre-
feed module, measured at sensor
B102 in pumping mode, is too
high. Pre-feed module remains in
pumping mode.
1157 – AL_RA_post_cooling_aborted
Cause
Automatic reducing agent
circulation (cooling mode)
following an engine stop has been
terminated on expiry of the max.
admissible cooling down time.
156 | Troubleshooting | MS15065/01E 2019-01
Corrective action
1. Check engine cabling (→ Page 321).
2. Contact Service.
Corrective action
1. Check engine cabling (→ Page 321).
2. Contact Service.
Corrective action
1. Check engine cabling (→ Page 321).
2. Check sensor B106 and replace as necessary.
3. Contact Service.
Corrective action
1. Visually check reducing agent lines and pre-feed module for leaks.
2. Check reducing agent tank.
3. Contact Service.
Corrective action
u Contact Service.
Corrective action
u Contact Service.
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