Page 2588 - Foton Workshop Manual - Sauvana

62-536 DIAGNOSIS-ENGINE CONTROL SYSTEM

DTC code Diagnosed items(DTC definition ) Fault location

• Open circuit or short circuit to
earth of No. 4 cylinder fuel
injector wiring harness
Lower voltage of No. 4 cylinder fuel injector
P0270 • poor contact of No. 4 cylinder
control circuit
fuel injector wiring harness
plugin
• ECU

• Poor contact of No.4 cylinder
fuel injector wiring harness
Improper voltage of No. 4 cylinder fuel
P0272 plugin, pen circuit or short
injector control circuit
circuit of sensor wiring harness
• ECU
• Turbocharger pressure sensor
• Pipeline leaking
P0299 Insufficient pressurization
• Turbocharging fault
• ECU

P0300 Multi-cylinder fire occurred • Open circuit or short circuit of
P0301 No.1 cylinder fire occurred engine control system wiring
harness
P0302 No.2 cylinder fire occurred
• Ignition system
P0303 No.3 cylinder fire occurred • Fuel injector

• Fuel temperature
• Manifold pressure sensor
• Compression Pressure
P0304 No.4 cylinder fire occurred • Valve train timing
• Ventilating valves and hoses
• Ventilation hose connection
• ECU
Unreasonable top dead center tooth
P0321 • Crankshaft position sensor
missing signal on crankshaft

• Revolution sensor
• Poor contact of revolution
P0322 Signal fault of revolution sensor sensor’s plugin, Open circuit
of sensor wiring harness
• ECU
• Knock sensor
• Po o r co ntact o f kn o ck
Open circuit of no.1knock sensor ’ssignal(
P0325 sensor’s plugin, pen circuit
below lower limit)
of sensor harness
• ECU

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