Page 438 - Foton Workshop Manual - Tunland (AT)

04-292 DIAGNOSTICS - ENGINE CONTROL SYSTEM

P1962，P2387，P2449，P2634，P2635，P2636，P3616，P4956，

P4957，P5177-VGT ACTUATOR CONTROLLER FAULT
P1962-VGT VGT ACTUATOR DRIVER TEMPERATURE IS TOO

HIGH (CALCULATED VALUE) - DATA IS VALID BUT ABOVE

04 NORMAL OPERATING RANGE - LOWEST SEVERITY LEVEL
P2387-VGT ACTUATOR DRIVE CIRCUIT (MOTOR) - MECHANICAL
SYSTEM IS NOT RESPONSIVE OR MISALIGNED.
P2449-VGT ACTUATOR CONTROL - BEYOND CALIBRATION

P2634-VGT ACTUATOR CONTROLLER - INTELLIGENT DEVICE
OR COMPONENT FAILURE

P2635-VGT ACTUATOR DRIVER CIRCUIT - CONDITION EXISTS
P2636-VGT ACTUATOR DRIVER CIRCUIT - ABNORMAL UPDATE
RATE

P3616-ENGINE VGT NOZZLE POSITION - MECHANICAL SYSTEM
IS NOT RESPONDING OR MISALIGNED

P2387-VGT ACTUATOR DRIVE CIRCUIT (MOTOR) - MECHANICAL
SYSTEM IS NOT RESPONSIVE OR MISALIGNED
P4956-VARIABLE GEOMETRY TURBOCHARGER ACTUATOR

SOFTWARE - BEYOND CALIBRATION
P4957-VARIABLE GEOMETRY TURBOCHARGER ACTUATOR

SOFTWARE - CONDITION EXISTS
P5177-VARIABLE GEOMETRY TURBOCHARGER ACTUATOR
SOFTWARE - ABNORMAL UPDATERATE

Description

1 . The variable geometry turbocharge is powered by variable geometry turbocharger
actuator.The variable geometry turbocharger actuator is an intelligent device
that receives the information transmitted by the main engine control module
(ECM) via the J1939 data communication interface.The variable geometry
turbocharger performs autonomous diagnosis and reports failure to the main
engine ECM using the J1939 data communication interface.

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