essai de voir ici: mais c'est les codes standardisés, pour les codes specifiques constructeur si je trouve quelque chose je te tiens au courant
http://www.eobd.fr/fault_codes/P11xx.swf
j'ai trouvé ca aussi:
P1188 Linear 02 Sensor / Compens. Resistor Short to Ground
P1189 Linear 02 Sensor / Compens. Resistor Short to B+
et ca aussi:
P1188
Fuel Pressure Monitoring Malfunction-Leakage
P1189
Fuel Pressure Monitoring Malfunction-Governor Deviation at Engine Speed Too High
encore ca:
P1187 Fuel Pressure Monitoring - Regulator Valve Stick
All Common rail diesel engine, rail pressure regulator is controlled based on rail pressure sensor signal in order to maintain optimum rail pressure according to current engine rpm and load.
However when the problem that leads rail pressure to out of target value intended by ECM occurs due to mechanical or electronical reason, ECM shuts engine down and sets DTC by limiting fuel (stops injector operation) in order to prevent engine from being controlled abnormally. "rail pressure monitoring error" is the DTC which diagnose 1). supplying state of low pressure fuel and 2). mechanical operating conditions of high pressure pump and 3). rail pressure regulator indirectly based on rail pressure sernsor output voltage and rail pressure sensor duty. thus, repair relavant to this DTC requires mechanics the total understand of fuel system.
P1189 Fuel Pressure Monitoring - Governor Deviation at Engine speed Too High
Fuel pressure monitoring is used to detect the troubles and the fuel leakage in high pressure system. The ECM determines the rail pressure value as a function of the engine’s operating conditions and controls the fuel pressure regulator to ensure that the rail pressure reaches the required value. Fuel pressure in the fuel line including the pumps and injector are continuously monitored during engine runing. If the rail pressure is excessive, the fuel pressure regulator opens and a portion of the fuel returns from the rail to the fuel tank via a collector line. If the rail pressure is too low, the fuel pressure regulator closes. The fuel pressure regulator closes. the fuel pressure regulator is installed in the tail end of high pressure accumulator. In case of the insufficient fuel supply in the fuel line, the engine symptoms will occur a shut down and a starting impossible.