Page 267 - Foton Workshop Manual - Tunland (AT)

DIAGNOSTICS - ENGINE CONTROL SYSTEM 04-121

Failure code Diagnostic items (DTC definition) Trouble location
Battery charging system voltage - • Battery
P596 data is valid but above normal oper- • Generator and its harness
ating range - medium severity level • ECM

Battery charging system voltage - • Battery 04
P597 data is valid but below normal operat- • Generator and its harness
ing range - medium severity level • ECM

Battery charging system voltage - • Battery
P598 data is valid but below normal operat- • Generator and its harness
ing range - highest severity level • ECM
Engine oil change intervals - prob-
P649 • ECM and its harness
lems exist

• 5V power line, signal line or return
line for engine harness is open or
Engine crankshaft speed / position -
shorted
P689 Data is unstable, intermittent or incor- • Engine speed sensor is damage or
rect
fault
• ECM

• Intake mass flow sensor
Turbocharger 1 compressor inlet
• The inlet mass flow sensor connec-
temperature circuit - Voltage is above
P691 tor is in poor contact, the harness
normal or shorted to high voltage
is open or shorted
power supply
• ECM
• Intake mass flow sensor
Turbocharger 1 compressor inlet • The inlet mass flow sensor connec-
temperature circuit - Voltage is below
P692 tor is in poor contact, the harness
normal or shorted to high voltage
is open or shorted
power supply
• ECM

Engine speed / position camshaft and • Engine speed / position sensor
crankshaft alignment errors - mechan- • Round wire harness of engine and
P731
ical systems are not responding or vehicle
misaligned • ECM
• Camshaft position sensor
Engine camshaft speed / position • Camshaft position sensor connec-
P778 sensor - Data is unstable, intermittent tor is out of contact, the harness is
or incorrect open or shorted
• ECM

• Battery
Switch off during ignition - data is • Ignition switch and its wiring har-
P1117
unstable, intermittent or incorrect ness
• ECM

Page 267