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. |
|
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 ...
A/T Control system
A/T Control system : component parts location
1. IPDM E/R 2. TCM 3. Transmission range switch
4. A/T unit 5. Output speed sensor 6. Stop lamp switch
7. A/T shift selector 8. Overdrive control switch 9. Combination meter (type B)
A/T Control system : component description
Name
...
U1000 CAN Comm
Description
Refer to LAN "CAN COMMUNICATION SYSTEM : System Description".
DTC Logic
DTC DETECTION LOGIC
NOTE:
U1000 can be set if a module harness was disconnected and reconnected, perhaps
during a repair. Confirm
that there are actual CAN diagnostic symptoms and a present DTC ...