4.
Depress and release Foot Brake pedal.
Fig 1) Brake s/w OFF
Fig 2) Brake s/w ON
The Brake Switch provides important information by deciding whether the vehicle is decelerating by the depression of the brake pedal, or if the speed is decreasing because the vehicle is running on the uphill.
TCM set this code If CAN signal normal condition and Brake s/w output abnormal signal to TCM.(MIL OFF)
Item | Detecting Condition | Possible Cause |
DTC Strategy | ● Check signal | ● Faulty in brake s/w circuit |
Enable Conditions | ● CAN : normal ● IG KEY "ON" ● Battery voltage > 9V | |
Threshold Value | ● Detectde abnormal signal from CAN | |
Diagnostic Time | ● 0.6second | |
Fail Safe | ● Shift lock : OFF ● (priority : 4) |
The function with the higher priority will aiways take precedence. However, a low-priority is not overruled by a higher priority function.
Functions from different priority categories can also run in parallel. It is important to note which function will take precedence in this case.
In such an event it is possible for a substitute function with low priority not be carried out if a second, higher-priority function is present. This has been taken into account when compiling the priority list and is international.
The mechanical emergency run function must always have the highest priority, since from the electrical standpoint it is the only safe condition.
Connect scantool to data link connector(DLC).
Ignition "ON" & Engine "OFF".
Monitor the "BRAKE LAMP SWITCH" parameter on the scantool.
Depress and release Foot Brake pedal.
Fig 1) Brake s/w OFF
Fig 2) Brake s/w ON
Does "Brake s/w" follow the referance data?
 | ▶ Fault is intermittent caused by poor contact in the sensor's and/or TCM(PCM)'s connector or was repaired and TCM(PCM) memory was not cleared. Throughly check connectors for looseness, poor connection, bending, corrosion, contamination, deterioration or damage.Repair or replace as necessary and go to "Verification Vehicle Repair" procedure. |
 | ▶ Refer to "Engine" Daignostic Guide, repair as necessary, go to "Verification Vehicle Repair" procedure. |
After a repair, it is essential to verify that the fault has been corrected.
Connect scantool and select "Diagnostic Trouble Codes(DTCs)" mode.
Using a scan tool, Clear DTC.
Operate the vehicle within DTC Enable conditions in General information.
Are any DTCs present ?
| ▶ Go to the applicable troubleshooting procedure. |
| ▶ System performing to specification at this time. |
