Page 265 - Foton Workshop Manual - Tunland (AT)
P. 265
DIAGNOSTICS - ENGINE CONTROL SYSTEM 04-119
Failure code Diagnostic items (DTC definition) Trouble location
• Intake heater
Engine intake air heater 1 circuit - • Intake heater is in poor contact,
P383 current is below normal or open cir- and the relay and harness is open
cuit or shorted
• ECM 04
Sensor power 1 circuit - voltage is • The harness between the engine
P386 above normal or shorted to low volt- and the ECM is open or shorted
age power supply • ECM
• Oil pressure switch
Engine oil rail pressure - data is valid • Oil pressure switch connector is
P415 but below normal operating range - out of contact, the harness is open
highest severity level or shorted
• ECM
• Fuel hydrous sensor
Fuel water indicator - data is valid but • Fuel hydrous sensor connector is
P418 above normal operating range - low- out of contact, the harness is open
est severity level or shorted
• ECM
• Fuel hydrous sensor
• Wiring harness, joint or sensor loop
Fuel water indicator circuit - voltage or signal circuit is open
P428 is above normal or shorted to high
• Signal wire is shorted to sensor
voltage power supply
power or battery voltage
• ECM
• Fuel hydrous sensor
• Wiring harness, joint or sensor loop
Fuel hydrous indicator circuit - volt-
or signal circuit is open
P429 age is below normal or shorted to low
• Signal wire is shorted to sensor
voltage power supply
power or battery voltage
• ECM
• Oil pressure switch
• Oil pressure switch connector is
Engine oil rail pressure - Data is un-
P435 out of contact, the harness is open
stable, intermittent or incorrect
or shorted
• ECM
• Battery harness or ECM connector
Battery 1 voltage - data is valid but
is out of contact, the harness is
P441 below normal operating range -
open or shorted
medium severity level
• ECM
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