P2122/104 THROTTLE/PEDAL POSITION SENSOR/SWITCH D CIRCUIT LOW INPUT P2123/105 THROTTLE/PEDAL POSITION SENSOR/SWITCH D CIRCUIT HIGH INPUT

Transcription

1 05772 P2122/104 THROTTLE/PEDAL POSITION SENSOR/SWITCH D CIRCUIT LOW INPUT 05JBV01 P2123/105 THROTTLE/PEDAL POSITION SENSOR/SWITCH D CIRCUIT HIGH INPUT P2127/107 THROTTLE/PEDAL POSITION SENSOR/SWITCH E CIRCUIT LOW INPUT P2128/108 THROTTLE/PEDAL POSITION SENSOR/SWITCH E CIRCUIT HIGH INPUT HINT: This is the repair procedure for the accelerator pedal position sensor. CIRCUIT DESCRIPTION HINT: This electrical throttle system does not use a throttle cable. This accelerator pedal position sensor is a noncontact type. The accelerator pedal position sensor is mounted on the accelerator pedal to detect how much it is depressed. It has 2 sensor terminals ( and ) to detect the accelerator pedal position and a malfunction of the accelerator pedal position sensor itself. Since this sensor is electronically controlled with hall elements, accurate control and reliability can be obtained. In the accelerator pedal position sensor, the voltage applied to terminals and of the HV control ECU changes between 0 V and 5 V in proportion to the degree of depressing the accelerator pedal. The is a signal to indicate the actual accelerator pedal position angle which is used for the HV system control, and the is a signal to indicate the actual accelerator pedal position angle which is used for detecting a malfunction of the sensor itself (terminal ). The HV control ECU judges how much the accelerator pedal is being depressed from the and signals, and controls the HV system based on the signals. 936

2 05773 Accelerator Pedal Position Sensor HV control ECU Magnet IC No.1 5 V VCPA 2 5 V IC No.2 Accelerator Pedal Position Sensor Output Voltage (V) *1 *2 25 Usable Range 0 Accelerator Pedal Position Angle (deg) Magnet *1: *2: Accelerator Pedal Released Accelerator Pedal Fully Depressed A19694 A19803 No. INF Code Detection Condition Trouble Area P P P P Open or GND short in accelerator pedal position main sensor circuit +B short in accelerator pedal position main sensor circuit Open or GND short in accelerator pedal position sub sensor circuit +B short in accelerator pedal position sub sensor circuit 937

3 05774 WIRING DIAGRAM A13 Accelerator Pedal Position Sensor VCPA (Shielded) L B Y W R G HV Control ECU J5 J/C A IK A92108 INSPECTION PROCEDURE 1 READ VALUE OF HANDHELD TESTER(ACCEL POS #1 AND #2) Depressed Released FI7052 (e) Connect the handheld tester to the DLC3. Turn the handheld tester ON. On the handheld tester, enter the following menus: DIAGNOSIS / ENHANCED OBD II / HV ECU / DATA LIST. Read the ACCEL POS #1 and #2 values on the hand held tester with the engine stopped. OK: Changes with accelerator pedal pressure OK Go to step 5 NG 938

4 CHECK HARNESS AND CONNECTOR(HYBRID VEHICLE CONTROL ECU ACCELERATOR PEDAL POSITION SENSOR) 1 HV Control ECU Connector Wire Harness Side: Accelerator Pedal Position Sensor Connector A13 VCPA Front View A65745 A92050 (e) (f) Disconnect the HV control ECU connector. Disconnect the A13 accelerator pedal position sensor connector. Measure the voltage between the terminals of the HV control ECU connector and body ground. Standard: 1 (26) Body ground (25) Body ground (27) Body ground (34) Body ground (33) Body ground (35) Body ground Turn the power switch OFF. Check the resistance between the wire harness side connectors. Standard (Check for open): 1 (26) (A136) (25) VCPA (A134) (27) (A135) (34) (A133) (33) (A131) (35) (A132) Standard (Check for short): 1 (26) or (A136) Body ground (25) or VCPA (A134) Body ground (27) or (A135) Body ground (34) or (A133) Body ground (33) or (A131) Body ground (35) or (A132) Body ground (g) Reconnect the accelerator pedal position sensor connector. (h) Reconnect the HV control ECU connector. NG RIR OR REPLACE HARNESS OR CONNECTOR OK 939

5 INSPECT HYBRID VEHICLE CONTROL ECU( OR VOLTAGE) Accelerator Pedal Position Sensor Connector Disconnect the A13 accelerator pedal position sensor connector. Measure the voltage between the terminals of the HV control ECU connector. Standard: (25) (27) 4.5 to 5.5 V A92051 (33) (35) 4.5 to 5.5 V Reconnect the accelerator pedal position sensor connector. HV Control ECU Connector A18294 NG REPLACE HYBRID VEHICLE CONTROL ECU (See page 21124) OK 4 REPLACE ACCELERATOR PEDAL ROD ASSY (See page 21128) GO 5 CHECK IF OUTPUT RECURS( P2122, P2123, P2127 OR P2128) Connect the handheld tester to the DLC3. Turn the handheld tester ON. On the handheld tester, enter the following menus: DIAGNOSIS / ENHANCED OBD II / HV ECU / INFO / TROUBLE CODES. (e) Perform a simulation test. (f) Read s. Result: P2122, P2123, P2127 or P2128 is not output again YES SYSTEM OK NO REPLACE HYBRID VEHICLE CONTROL ECU (See page 21124) 940