Toyota CH-R Service Manual: Acceleration Sensor Malfunction (C1420)
DESCRIPTION
This DTC is stored when the skid control ECU (brake actuator assembly) detects an abnormality in the difference between the acceleration sensor value and the control value estimated based on the yaw rate sensor, steering angle sensor and speed sensor signals.
|
DTC No. |
Detection Item |
DTC Detection Condition |
Trouble Area |
|---|---|---|---|
|
C1420 |
Acceleration Sensor Malfunction |
The difference between the acceleration sensor value and the control value estimated inside the skid control ECU (brake actuator assembly) is abnormal. |
|
PROCEDURE
|
1. |
CHECK AIRBAG SENSOR ASSEMBLY INSTALLATION |
(a) Check that the yaw rate and acceleration sensor (airbag sensor assembly) has been installed properly.
Click here
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OK:
The airbag sensor assembly is tightened to the specified torque.
The airbag sensor assembly is not be installed in a tilted position.
HINT:
If troubleshooting has been carried out according to Problem Symptoms Table, refer back to the table and proceed to the next step before replacing parts.
Click here
| OK | .gif) |
REPLACE AIRBAG SENSOR ASSEMBLY
|
| NG | |
INSTALL AIRBAG SENSOR ASSEMBLY CORRECTLY
|
Acceleration Sensor Internal Circuit (C1419,C1435)
DESCRIPTION
These DTCs are stored when the skid control ECU (brake actuator assembly) receives
an internal malfunction signal from the yaw rate and acceleration sensor (airbag
sensor assembly).
...
Open in Stop Light Switch Circuit (C1425)
DESCRIPTION
The skid control ECU (brake actuator assembly) receives stop light switch signals
and uses them to determine whether or not the brakes are applied.
The skid control ECU (brake actuator ...
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Toyota CH-R Service Manual > Smart Key System(for Entry Function): Back Door Entry Unlock Function does not Operate
DESCRIPTION
If the entry unlock function does not operate for the back door only, but the
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Toyota CH-R Service Manual > Occupant Classification System: Front Occupant Classification Sensor LH Collision Detection (B1785)
DESCRIPTION
DTC B1785 is stored when the occupant detection ECU receives a collision detection
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DTC B1785 is also stored when the front seat assembly RH is subjected to a strong
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Toyota C-HR (AX20) 2023-2026 Owner's Manual
Toyota CH-R Owners Manual
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Toyota CH-R Service Manual
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