Chery Tiggo. Manual — part 280
26 - Brake Pedal Position Switch Circuit Malfunction
DIAGNOSIS & TESTING
LTSMW080008T
On Board Diagnostic Logic
• Self-diagnosis detection logic.
DTC NO.
DTC DEFINITION
DTC DETECTION
CONDITION
DTC SET
CONDITION
POSSIBLE CAUSES
26
Brake pedal position
switch circuit
malfunction
Vehicle is driving
The brake switch is
on while vehicle is
driving
• Brake switch
• Harness or
connectors (The
sensor circuit is open
or shorted)
• TCM
DTC Confirmation Procedure:
Before performing the following procedure, confirm that battery voltage is more than 12 V.
• Connect the X-431 scan tool to the Data Link Connector (DLC) - use the most current software available.
• After connection, press POWER key to start X-431.
• Turn ignition switch on, with the scan tool, view and erase stored DTCs in the TCM.
• Start engine then select ⬙D⬙ position.
• Drive the vehicle.
• With the scan tool, select view DTC and data stream.
• If the DTC is detected, the DTC condition is current. Go to Diagnostic Procedure - Step 1.
• If the DTC is not detected, the DTC condition is intermittent (See Diagnostic Help and Intermittent DTC Trou-
bleshooting in Section 08 Transaxle & Transfer Case for more information).
NOTE :
While performing electrical diagnosis & testing, always refer to the electrical schematics for specific circuit
and component information.
Diagnostic Procedure
1.
CHECK BRAKE PEDAL POSITION SWITCH SIGNAL
• With the scan tool, select view DTC and data stream for A/T.
• Start vehicle and read out the value of ⬙STOP LAMP SWITCH⬙.
ITEM
CONDITION
DISPLAY
VALUE
Stop lamp switch
During driving
OFF
Is the check result normal?
Yes
>>
The condition that caused this DTC is intermittent (See Diagnostic Help in Section 08 Transaxle &
Transfer Case).
No
>>
Go to the next step.
DIAGNOSIS & TESTING
08
2.
CHECK BRAKE SWITCH POWER SUPPLY
• Stop vehicle.
• Check sensor power supply between sensor terminal 3 and ground in the sensor electrical connector C-005.
BRAKE SWITCH
CONDITION
VALUE (VOLT)
Depress brake switch
Battery voltage
Release brake switch
0
Is the check result normal?
Yes
>>
Go to the next step.
No
>>
Replace the brake switch.
3.
DETECT MALFUNCTIONING PART
• Check the following:
− Harness connectors A-102, E-105
− Harness for a short between TCM and brake switch
Is the check result normal?
Yes
>>
Go to the next step.
No
>>
Repair or replace short to power in harness or connectors.
4.
CHECK DTC
• With the X-431 scan tool, read TCM DTCs.
• Refer to ⬙DTC Confirmation Procedure⬙.
Is DTC 26 still present?
Yes
>>
Replace the TCM.
No
>>
The system is now operating properly.
Reassemble the vehicle and road test to verify the customers complaint is repaired.
DIAGNOSIS & TESTING
31 - Reverse/Low Solenoid Malfunction
DIAGNOSIS & TESTING
LTSMW080005T
08
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