DTC DETECTION LOGIC
DTC No. | Trouble diagnosis | DTC detecting condition | Possible cause |
P1805 | Brake switch | A brake switch signal is not sent to ECM for extremely long time while the vehicle is driving. |
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DTC CONFIRMATION PROCEDURE
1.PERFORM DTC CONFIRMATION PROCEDURE
Is 1st trip DTC detected?
YES >> Go to EC, "Diagnosis Procedure".
NO >> INSPECTION END
1.CHECK STOP LAMP SWITCH CIRCUIT
Is the inspection result normal?
YES >> GO TO 4.
NO >> GO TO 2.
2.CHECK STOP LAMP SWITCH POWER SUPPLY CIRCUIT
Is the inspection result normal?
YES >> GO TO 4.
NO >> GO TO 3.
3.DETECT MALFUNCTIONING PART
Check the following.
>> Repair open circuit or short to ground or short to power in harness or connectors.
4.CHECK STOP LAMP SWITCH INPUT SIGNAL CIRCUIT FOR OPEN AND SHORT
Is the inspection result normal?
YES >> GO TO 5.
NO >> Repair open circuit or short to ground or short to power in harness or connectors.
5.CHECK STOP LAMP SWITCH
Refer to EC, "Component Inspection (Stop Lamp Switch)".
Is the inspection result normal?
YES >> GO TO 6.
NO >> Replace brake pedal assembly. Refer to BR, "Removal and Installation".
6.CHECK INTERMITTENT INCIDENT
Refer to GI, "Intermittent Incident".
>> INSPECTION END
1.CHECK STOP LAMP SWITCH-I
Is the inspection result normal?
YES >> INSPECTION END
NO >> GO TO 2.
2.CHECK STOP LAMP SWITCH-II
Is the inspection result normal?
YES >> INSPECTION END
NO >> Replace stop lamp switch. Refer to BR, "Exploded View".
Description ECM receives two vehicle speed signals via the CAN communication line. One is sent from "ABS actuator and electric unit (control unit)" via combination meter, and the other is from TC ...
Stall test
Work Procedure
INSPECTION
Inspect the amount of engine oil. Replenish the engine oil if necessary.
Refer to LU "Inspection".
Drive for about 10 minutes to warm up the vehicle so that the A/T fluid
temperature is 50 to 80C (122 to
176F).
Inspect the amount of ATF. Replenish ...
U0100 Lost communication (ECM A)
Description
CAN (Controller Area Network) is a serial communication line for real-time
application. It is an on-vehicle multiplex
communication line with high data communication speed and excellent malfunction
detection ability.
Many electronic control units are equipped onto a vehicle, an ...