Page 714 - Workshop Manual - Tunland (2017)
P. 714
04-28 DIAGNOSTICS - ENGINE CONTROL SYSTEM
04
Failure code Diagnostic items (DTC definition) Trouble location
• The inlet mass flow sensor connec-
normal or shorted to high voltage tor is in poor contact, the harness
power supply is open or shorted
• 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
• EGR valve position sensor
Exhaust gas recirculation (EGR) • EGR valve position sensor connec-
P1228 valve position - Data is unstable, in- tor is out of contact, the harness is
termittent or incorrect open or shorted
• ECM
• Accelerator pedal position sensor
Accelerator pedal or lever position • Accelerator pedal position sensor
sensor 2 circuit - voltage is higher
P1239 connector is in poor contact, the
than normal or short circuit to high
harness is open or shorted
voltage power supply
• ECM
• Accelerator pedal position sensor
Accelerator pedal or lever position
• Accelerator pedal position sensor
sensor 2 circuit - voltage is lower
P1241 connector is in poor contact, the
than normal or short circuit to low harness is open or shorted
voltage power supply
• ECM
• Accelerator pedal position sensor
Accelerator pedal or lever position
• Accelerator pedal position sensor
P1242 sensor 1 and 2 - data is unstable, in-
connector is in poor contact, the
termittent or incorrect
harness is open or shorted
