Description
ECM supplies a voltage of 5 V to some of the sensors systematically divided into 2 groups, respectively.
Accordingly, when a short circuit develops in a sensor power source, a malfunction may occur simultaneously in the sensors belonging to the same group as the short-circuited sensor.
Sensor power supply 1
NOTE: If sensor power supply 1 circuit is malfunctioning, DTC P0643 is displayed.
Sensor power supply 2
DTC Description
DTC DETECTION LOGIC
DTC No. | CONSULT screen terms (Trouble diagnosis content) | DTC detecting condition |
P0643 | SENSOR POWER/CIRC (Sensor reference voltage ″A″ circuit high) | ECM detects that the voltage of sensor power supply 1 is excessively low or high. |
POSSIBLE CAUSE
FAIL-SAFE
ECM stops the electric throttle control actuator control, throttle valve is maintained at a fixed opening (approx.
5 degrees) by the return spring.
DTC CONFIRMATION PROCEDURE
1.PRECONDITIONING
If DTC Confirmation Procedure has been previously conducted, always perform the following procedure before conducting the next test.
TESTING CONDITION: Before performing the following procedure, confirm that battery voltage is more than 10 V at idle.
>> GO TO 2.
2.PERFORM DTC CONFIRMATION PROCEDURE
Is DTC detected? YES >> Refer to EC-380, "Diagnosis Procedure".
NO >> INSPECTION END
Diagnosis Procedure
1.CHECK GROUND CONNECTION
Is the inspection result normal? YES >> GO TO 2.
NO >> Repair or replace ground connection.
2.CHECK ACCELERATOR PEDAL POSITION SENSOR 1 POWER SUPPLY CIRCUIT
Is the inspection result normal? YES >> GO TO 5.
NO >> GO TO 3.
3.CHECK SENSOR POWER SUPPLY CIRCUITS
Check harness for short to power and short to ground, between the following terminals.
Is the inspection result normal? YES >> GO TO 4.
NO >> Repair short to ground or short to power in harness or connectors.
4.CHECK COMPONENTS
Check the following.
Is the inspection result normal? YES >> GO TO 5.
NO >> Repair or replace malfunctioning component.
5.CHECK APP SENSOR
Refer to EC-442, "Component Inspection".
Is the inspection result normal? YES >> GO TO 6.
NO >> Replace accelerator pedal assembly. Refer to ACC-3, "Removal and Installation".
6.CHECK INTERMITTENT INCIDENT
Refer to GI-41, "Intermittent Incident".
>> INSPECTION END
Brake pedal
Exploded View
Rivet
Clevis pin
Brake pedal
Brake pedal pad
Clip
Snap pin
Stop lamp switch
Brake pedal position switch
Removal and Installation
REMOVAL
Remove instrument lower panel LH. Refer to IP-22, "Removal and
Installation". ...
C1765, C1766, C1767, C1768 tire pressure sensor
DTC Description
DTC DETECTION LOGIC
DTC
Display Item
Malfunction Detected Condition
Possible Cause
C1765
WHEEL TOP DATA FL
(Wheel top data front left)
Malfunction in the wheel top data from the front LH
wheel speed sensor.
Wheel speed sensor
C1766
...
U1010 control unit (CAN)
Description
Initial diagnosis of combination meter.
DTC Logic
DTC DETECTION LOGIC
DTC
CONSULT
Detection Condition
Possible Cause
U1010
CONTROL UNIT (CAN)
[U1010]
When detecting error during the initial diagnosis of the CAN
controller
of co ...