DTC Logic
DTC DETECTION LOGIC
DTC No. | CONSULT screen terms (Trouble diagnosis content) | DTC detecting condition | Possible cause |
P1805 | BRAKE SW/CIRCUIT (Brake switch circuit) | Stop lamp 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
NOTE:
Since this DTC is difficult to be confirmed, check component function to judge the normality.
>> Proceed to EC-410, "Component Function Check".
Component Function Check
1.CHECK BRAKE SWITCH FUNCTION
With CONSULT
Without CONSULT
Is the inspection result normal? YES >> INSPECTION END
NO >> Proceed to EC-410, "Diagnosis Procedure".
Diagnosis Procedure
1.CHECK STOP LAMP SWITCH OPERATION
Is the inspection result normal? YES >> GO TO 5.
NO >> GO TO 2.
2.CHECK STOP LAMP SWITCH POWER SUPPLY
Is the inspection result normal? YES >> GO TO 4.
NO >> GO TO 3.
3.CHECK STOP LAMP SWITCH POWER SUPPLY CIRCUIT
Is the inspection result normal? YES >> Check power supply circuit for 12V battery power supply.
NO >> Repair or replace error-detected parts.
4.CHECK STOP LAMP SWITCH
Check stop lamp switch. Refer to EC-412, "Component Inspection (Stop Lamp Switch)".
Is the inspection result normal? YES >> GO TO 5.
NO >> Replace stop lamp switch. Refer to BR-22, "Exploded View".
5.CHECK STOP LAMP SWITCH INPUT SIGNAL CIRCUIT
Is the inspection result normal? YES >> Check intermittent incident. Refer to GI-39, "Intermittent Incident".
NO >> Repair or replace error-detected parts.
Component Inspection (Stop Lamp Switch)
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-22, "Exploded View".
Can communication
CAN COMMUNICATION : System 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 error
detection ability. Many electronic
control units are equipped ...
System description
Component parts
AUTOMATIC DOOR LOCK/UNLOCK FUNCTION
AUTOMATIC DOOR LOCK/UNLOCK FUNCTION
: Component Parts Location
BCM
(view with instrument panel removed)
Main power window and door lock/unlock
switch
Power window and door lock/unlock
switch RH
Front door lock key cylinder ...
Basic inspection
Diagnosis and repair workflow
Work Flow
OVERALL SEQUENCE
DETAILED FLOW
1. OBTAIN INFORMATION ABOUT SYMPTOM
Interview the customer to obtain as much information as possible about the
conditions and environment under
which the malfunction occurred.
>> GO TO 2.
2. CONFIRM THE SYMPTO ...