DTC Logic
DTC DETECTION LOGIC
NOTE:
1st trip DTC is erased when ignition switch OFF. And even when malfunction A is detected in two consecutive trips, DTC is not stored in ECM memory.
DTC No. | CONSULT screen terms (Trouble diagnosis content) | DTC detecting condition | Possible cause | |
P1572 | ASCD BRAKE SW (ASCD BRAKE SW) | A) | When the vehicle speed is above 30 km/ h (19 MPH), ON signals from the stop lamp switch and the brake pedal position switch are sent to the ECM at the same time. |
|
B) | Brake pedal position switch signal is not sent to ECM for extremely long time while the vehicle is driving. |
DTC CONFIRMATION PROCEDURE
1.PRECONDITIONING
If DTC Confirmation Procedure has been previously conducted, always perform the following procedure before conducting the next test.
NOTE:
Procedure for malfunction B is not described here. It takes extremely long time to complete procedure for malfunction B. By performing procedure for malfunction A, the incident that causes malfunction B can be detected.
>> GO TO 2.
2.PERFORM DTC CONFIRMATION PROCEDURE FOR MALFUNCTION A
CAUTION:
Always drive vehicle at a safe speed.
NOTE:
This procedure may be conducted with the drive wheels lifted in the shop or by driving the vehicle.
If a road test is expected to be easier, it is unnecessary to lift the vehicle.
Is DTC detected? YES >> Proceed to EC-397, "Diagnosis Procedure".
NO >> GO TO 3.
3.PERFORM DTC CONFIRMATION PROCEDURE FOR MALFUNCTION B
CAUTION:
Always drive vehicle at a safe speed.
NOTE:
This procedure may be conducted with the drive wheels lifted in the shop or by driving the vehicle.
If a road test is expected to be easier, it is unnecessary to lift the vehicle.
Is DTC detected? YES >> Proceed to EC-397, "Diagnosis Procedure".
NO >> INSPECTION END
Diagnosis Procedure
1.CHECK OVERALL FUNCTION-1
With CONSULT
Without CONSULT
Is the inspection result normal? YES >> GO TO 2.
NO >> MT models: GO TO 3.
>> CVT models: GO TO 4.
2.CHECK OVERALL FUNCTION-2
With CONSULT
Select “BRAKE SW2” and check indication as per the following conditions.
Without CONSULT
Check the voltage between ECM harness connector terminals as per the following conditions.
Is the inspection result normal? YES >> Check intermittent incident. Refer to GI-39, "Intermittent Incident".
NO >> GO TO 7.
3.CHECK CLUTCH PEDAL POSITION SWITCH POWER SUPPLY
Is the inspection result normal? YES >> GO TO 4.
NO >> Perform the trouble diagnosis for power supply circuit.
4.CHECK BRAKE PEDAL POSITION SWITCH POWER SUPPLY
Is the inspection result normal? YES >> GO TO 5.
NO >> Perform the trouble diagnosis for power supply circuit.
5.CHECK BRAKE PEDAL POSITION SWITCH INPUT SIGNAL CIRCUIT
Is the inspection result normal?
YES >> GO TO 6.
NO >> Repair or replace error-detected parts.
6.CHECK BRAKE PEDAL POSITION SWITCH
Check the brake pedal position switch. Refer to EC-394, "Component Inspection (Brake Pedal Position Switch)" Is the inspection result normal? YES >> Check intermittent incident. Refer to GI-39, "Intermittent Incident".
NO >> Replace brake pedal position switch. Refer to BR-22, "Exploded View".
7.CHECK STOP LAMP SWITCH POWER SUPPLY CIRCUIT
Is the inspection result normal? YES >> GO TO 8.
NO >> Perform the trouble diagnosis for power supply circuit.
8.CHECK STOP LAMP SWITCH GROUND CIRCUIT
Is the inspection result normal? YES >> GO TO 9.
NO >> Repair or replace error-detected parts.
9.CHECK STOP LAMP SWITCH
Check the stop lamp switch. Refer to EC-395, "Component Inspection (Stop Lamp Switch)".
Is the inspection result normal? YES >> Check intermittent incident. Refer to GI-39, "Intermittent Incident".
NO >> Replace stop lamp switch. Refer to BR-22, "Exploded View".
Component Inspection (Brake Pedal Position Switch)
1.CHECK BRAKE PEDAL POSITION SWITCH-1
Is the inspection result normal? YES >> INSPECTION END
NO >> GO TO 2.
2.CHECK BRAKE PEDAL POSITION SWITCH-2
Is the inspection result normal? YES >> INSPECTION END
NO >> Replace brake pedal position switch. Refer to BR-22, "Exploded View".
Component Inspection (Stop Lamp Switch)
1.CHECK STOP LAMP SWITCH-1
Is the inspection result normal? YES >> INSPECTION END
NO >> GO TO 2.
2.CHECK STOP LAMP SWITCH-2
Is the inspection result normal? YES >> INSPECTION END
NO >> Replace stop lamp switch. Refer to BR-22, "Exploded View".
AIR Breather hose
Exploded View
Harness bracket
Clip
Air breather hose
Vehicle front
Always replace after every
disassembly.
Removal and Installation
REMOVAL
Remove clips from harness bracket
Remove air breather hose from transaxle assembly.
INSTALLATION
Installation is in the revers ...
Strg branch line circuit
Diagnosis procedure
1.Check connector
Turn the ignition switch OFF.
Disconnect the battery cable from the negative terminal.
Check the terminals and connectors of the steering angle sensor for
damage, bend and loose connection
(unit side and connector side).
Is the inspection result ...
Engine Oils
Prolonged and repeated contact with used engine oil may cause skin cancer.
Try to avoid direct skin contact
with used oil.
If skin contact is made, wash thoroughly with soap or hand cleaner as soon as
possible.
HEALTH PROTECTION PRECAUTIONS
Avoid prolonged and repeated contact with oils ...