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".
Front wiper and washer system
Component Parts Location
BCM (view under instrument panel,
left side of vehicle)
Combination meter
IPDM E/R (view with air inlet duct
removed)
Combination switch (wiper and
washer switch)
Front wiper motor (with wiper cowl
cover removed)
Front washer motor (with front
bum ...
Push-Button Ignition Switch (if so equipped)
WARNINGDo not operate the push-button ignition
switch while driving the vehicle except in
an emergency. (The engine will stop when
the ignition switch is pushed 3 consecutive
times in quick succession or the ignition
switch is pushed and held for more
than 2 seconds.) If ...
P0078 EVT Control solenoid valve
DTC Logic
DTC DETECTION LOGIC
DTC No.
CONSULT screen terms
(Trouble diagnosis content)
DTC detecting condition
Possible cause
P0078
EX V/T ACT/CIRC-B1
(Exhaust valve control solenoid circuit
bank 1)
An improper voltage is sent to the ECM
through exhaust v ...