DTC DETECTION LOGIC
DTC No. | Trouble diagnosis name | DTC detecting condition | Possible cause |
P0031 | Air fuel ratio (A/F) sensor 1 heater control circuit low | The current amperage in the A/F sensor 1 heater circuit is out
of the normal range.
(An excessively low voltage signal is sent to ECM through the A/F sensor 1 heater.) |
|
P0032 | Air fuel ratio (A/F) sensor 1 heater control circuit high | The current amperage in the A/F sensor 1 heater circuit is out
of the normal range.
(An excessively high voltage signal is sent to ECM through the A/F sensor 1 heater.) |
|
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 between 10 V and 16 V at idle.
>> GO TO 2.
2.PERFORM DTC CONFIRMATION PROCEDURE
Is 1st trip DTC detected?
YES >> Go to EC, "Diagnosis Procedure".
NG >> INSPECTION END
1.CHECK GROUND CONNECTION
Is the inspection result normal?
YES >> GO TO 2.
NO >> Repair or replace ground connection.
2.CHECK AIR FUEL RATIO (A/F) SENSOR 1 POWER SUPPLY CIRCUIT
Is the inspection result normal?
YES >> GO TO 4.
NO >> GO TO 3.
3.DETECT MALFUNCTIONING PART
Check the following.
>> Repair or replace harness or connectors.
4.CHECK A/F SENSOR 1 HEATER OUTPUT SIGNAL CIRCUIT
4. Also check harness for short to ground and short to power.
Is the inspection result normal?
YES >> GO TO 5.
NO >> Repair open circuit, short to ground or short to power in harness or connectors.
5.CHECK A/F SENSOR 1 HEATER
Refer to EC, "Component Inspection".
Is the inspection result normal?
YES >> GO TO 7.
NO >> GO TO 6.
6.REPLACE AIR FUEL RATIO (A/F) SENSOR 1
Replace malfunctioning air fuel ratio (A/F) sensor 1. Refer to EM, "Exploded View".
CAUTION:
>> INSPECTION END
7.CHECK INTERMITTENT INCIDENT
Perform GI, "Intermittent Incident".
>> Repair or replace.
1.CHECK AIR FUEL RATIO (A/F) SENSOR 1
Is the inspection result normal?
YES >> INSPECTION END
NO >> GO TO 2.
2.REPLACE AIR FUEL RATIO (A/F) SENSOR 1
Replace malfunctioning air fuel ratio (A/F) sensor 1. Refer to EM, "Exploded View".
CAUTION:
>> INSPECTION END
Hazard warning flasher switch
Push the switch on to warn other drivers when
you must stop or park under emergency conditions.
All turn signal lights flash.
WARNING
If stopping for an emergency, be sure to
move the vehicle well off the road.
Do not use the hazard warning flashers
while moving on the highway unl ...
Accelerator control system
Exploded View
1. Accelerator pedal assembly 2. Brake pedal bracket A. Locating hook
B. Locating pin
Removal and Installation
CAUTION:
Do not disassemble accelerator pedal assembly. Do not remove
accelerator pedal position sensor
from accelerator pedal assembly.
Avoid impact from ...