Page 486 - Foton Workshop Manual - Tunland (AT)

04-340 DIAGNOSTICS - ENGINE CONTROL SYSTEM

P4151，P4158，P4161，P4162，P4163-POSTPROCESSING

DIESEL PARTICULATE FILTER TEMPERATURE SENSOR FAULT
P4151-POSTPROCESSING DIESEL PARTICULATE FILTER

TEMPERATURE SENSOR MODULE - ABNORMAL UPDATE RATE

04 P4158-POSTPROCESSING DIESEL PARTICULATE FILTER
TEMPERATURE SENSOR MODULE - INTELLIGENT DEVICE OR

COMPONENT FAULT
P4161-POSTPROCESSING DIESEL PARTICULATE FILTER

TEMPERATURE SENSOR CIRCUIT - VOLTAGE IS ABOVE
NORMAL OR SHORTED TO HIGH VOLTAGE POWER SUPPLY
P4162-POSTPROCESSING DIESEL PARTICULATE FILTER

TEMPERATURE SENSOR CIRCUIT - VOLTAGE IS ABOVE
NORMAL OR SHORTED TO HIGH VOLTAGE POWER SUPPLY

P4163-POSTPROCESSING DIESEL PARTICULATE FILTER
TEMPERATURE SENSOR CIRCUIT - DATA IS VALID BUT ABOVE
NORMAL RANGE - MEDIUM SEVERITY LEVEL

Description

1 . The postprocessing DPF temperature sensor is an intelligent device that
communicate with ECM via the J1939 data communication interface.The DPF
temperature sensor performs autonomous diagnosis and reports failure to the
main engine ECM through J1939 data communication interface.The
postprocessing DPF temperature sensor module is sued to measure the
postprocessing DOC inlet temperature, postprocessing DPF inlet temperature
and postprocessing DPF outlet temperature.The temperature probe is
permanently fixed on the postprocessing DPF temperature sensor module and
can not be replaced separately.
Circuit Diagram

Page 486