DTC P1229 SENSOR POWER SUPPLY. DTC No. Trouble diagnosis name DTC detecting condition Possible cause

Transcription

1 T P1229 SNSOR POWR SUPPY On Board iagnosis ogic This self-diagnosis has the one trip detection logic. T No. Trouble diagnosis name T detecting condition Possible cause PP:16119 UBS00W P circuit short detects a voltage of power source for sensor is excessively low or high. arness or connectors (PP sensor 1 circuit is shorted.) (PSP sensor circuit is shorted.) (Refrigerant pressure sensor circuit is shorted.) (VP control system pressure sensor circuit is shorted.) ccelerator pedal position sensor Power steering pressure sensor Refrigerant pressure sensor VP control system pressure sensor -S O When the malfunction is detected, enters fail-safe mode and the lights up. ngine operation condition in fail-safe mode stops the electric throttle control actuator control, throttle valve is maintained at a fixed opening (approx. 5 degrees) by the return spring. T onfirmation Procedure UBS00W NOT: f T onfirmation Procedure has been previously conducted, always turn ignition switch O and wait at least 10 seconds before conducting the next test. TSTN ONTON: Before performing the following procedure, confirm that battery voltage is more than 10V at idle. WT ONSUT- 1. Turn ignition switch ON. 2. Select T ONTOR mode with ONSUT-. 3. Start engine and let it idle for 1 second. 4. f T is detected, go to -425, "iagnostic Procedure". S058Y WT ST ollow the procedure WT ONSUT- above. -423

2 Wiring iagram UBS00WN BBW

3 Specification data are reference values and are measured between each terminal and ground. UTON: o not use ground terminals when measuring input/output voltage. oing so may result in damage to the 's transistor. Use a ground other than terminals, such as the ground. TR- N NO. 48 SB 49 R/Y 68 W/ 90 WR OOR iagnostic Procedure 1. ROUN ONNTONS T ONTON T ( Voltage) (VP control system pressure sensor) (Refrigerant pressure sensor) (Power steering pressure sensor) (PP sensor 1) 1. Turn ignition switch O. 2. oosen and retighten three ground screws on the body. UBS00WO Refer to -132, "round nspection". O >> O TO 2. N >> Repair or replace ground connections. BB

4 2. PP SNSOR 1 POWR SUPPY RUT 1. isconnect accelerator pedal position (PP) sensor harness connector. 2. Turn ignition switch ON. BB heck voltage between PP sensor terminal 7 and ground with ONSUT- or tester. Voltage: O >> O TO 5. N >> O TO 3. PBB SNSOR POWR SUPPY RUTS heck the following. arness for short to power and short to ground, between the following terminals terminal Sensor terminal Reference Wiring iagram 48 VP control system pressure sensor terminal Refrigerant pressure sensor terminal Power steering pressure sensor terminal PP sensor terminal O >> O TO 4. N >> Repair short to ground or short to power in harness or connectors. 4. OPONNTS heck the following. VP control system pressure sensor (Refer to -306, "omponent nspection".) Power steering pressure sensor (Refer to -349, "omponent nspection".) Refrigerant pressure sensor (Refer to T-78, "OPONNT NSPTON".) O >> O TO 7. N >> Replace malfunctioning components. 5. RTOR P POSTON SNSOR Refer to -562, "omponent nspection". O >> O TO 7. N >> O TO

5 6. RP RTOR P SSBY 1. Replace accelerator pedal position assembly. 2. Perform -44, "ccelerator Pedal Released Position earning". 3. Perform -44, "Throttle Valve losed Position earning". 4. Perform -44, "dle ir Volume earning". >> NSPTON N 7. NTRTTNT NNT Refer to -126, "TROUB NOSS OR NTRTTNT NNT". >> NSPTON N -427