Page 272 - Foton Workshop Manual - Tunland (AT)
P. 272
04-126 DIAGNOSTICS - ENGINE CONTROL SYSTEM
Failure code Diagnostic items (DTC definition) Trouble location
1 cylinder injector solenoid valve • Injector and its harness
P2442
drive circuit - beyond calibration • ECM
2 cylinder injector solenoid valve • Injector and its harness
P2443
04 drive circuit - beyond calibration • ECM
3 cylinder injector solenoid valve • Injector and its harness
P2444
drive circuit - beyond calibration • ECM
4 cylinder injector solenoid valve • Injector and its harness
P2445
drive circuit - beyond calibration • ECM
• Variable geometry turbocharger
VGT actuator control - beyond calibra-
P2449 actuator and its harness
tion
• ECM
Turbine inlet temperature (calculated
• Turbocharger
value) of turbocharger - data is valid
P2451 • Intake system
but above normal operating range -
• ECM
medium severity level
• Exhaust pressure sensor pipe
• Exhaust pressure sensor and its
Exhaust pressure - data is unstable,
P2554 harness
intermittent or incorrect
• Turbocharger actuator
• ECM
• Intake heater
Engine intake heater 1 circuit -volt-
• Intake heater relay
P2555 age is above normal or shorted to
• Intake heater relay and its harness
high voltage power supply
• ECM
• Intake heater
Engine intake heater 1 circuit - volt-
• Intake heater relay
P2556 age is below normal or shorted to low • Intake heater relay and its harness
voltage power supply
• ECM
• Variable geometry turbocharger
VGT actuator controller - intelligent actuator and its harness
P2634
device or component failure • Postprocessing system
• ECM
• Variable geometry turbocharger
VGT actuator driver circuit - Condi-
P2635 actuator and its harness
tion exists
• ECM
• Variable geometry turbocharger
VGT actuator drive circuit - abnormal
P2636 actuator and its harness
updating speed
• ECM
Page 272
