| Last Modified: 11-20-2023 | 6.11:8.1.0 | Doc ID: RM1000000015L25 |
| Model Year Start: 2018 | Model: Camry | Prod Date Range: [06/2017 - 10/2020] |
| Title: PARK ASSIST / MONITORING: INTELLIGENT CLEARANCE SONAR SYSTEM: C1A4B; Stop Light Relay Circuit; 2018 - 2020 MY Camry [06/2017 - 10/2020] | ||
|
DTC |
C1A4B |
Stop Light Relay Circuit |
DESCRIPTION
When a stop light relay circuit malfunction signal sent from the vehicle stability control system is detected by the clearance warning ECU assembly, DTC C1A4B is stored.
|
DTC No. |
Detection Item |
DTC Detection Condition |
Trouble Area |
|---|---|---|---|
|
C1A4B |
Stop Light Relay Circuit |
Stop light relay circuit malfunction |
Vehicle stability control system |
CAUTION / NOTICE / HINT
NOTICE:
-
After turning the engine switch off, waiting time may be required before disconnecting the cable from the negative (-) battery terminal. Therefore make sure to read the disconnecting the cable from the negative (-) battery terminal notices before proceeding with work.
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![2018 - 2019 MY Camry [06/2017 - 09/2019]; INTRODUCTION: REPAIR INSTRUCTION: PRECAUTION](/t3Portal/stylegraphics/info.gif)
-
After replacing an ultrasonic sensor or the clearance warning ECU assembly, perform the necessary procedures (adjustment, calibration, initialization or registration).
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-
When DTC C1A4B is stored, there may be a malfunction in the lighting system. Inspect the lighting system before performing the following procedure.
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PROCEDURE
|
1. |
CHECK DTC OUTPUT |
(a) Using the Techstream, check for DTCs according to the prompts on the screen.
HINT:
After turning the engine switch from off to on (IG), wait 4 seconds or more before checking for DTCs.
Body Electrical > Advanced Parking Guidance/ICS/Intuitive P/A > Trouble Codes
(b) Clear the DTCs according to the screen on the Techstream.
Body Electrical > Advanced Parking Guidance/ICS/Intuitive P/A > Clear DTCs
(c) Recheck for DTCs.
Body Electrical > Advanced Parking Guidance/ICS/Intuitive P/A > Trouble Codes
HINT:
- DTC C1A4B is stored when a malfunction signal sent from the vehicle stability control system is detected.
- If the malfunctioning part has been repaired or replaced before rechecking for DTCs, DTC C1A4B will not be output again.
-
If DTC C1A4B is output frequently, duplicate the conditions that cause the problem symptoms and perform the inspection again, even though the DTC was not output when rechecking for DTCs.
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|
Result |
Proceed to |
|---|---|
|
DTC C1A4B is output |
A |
|
DTC C1A4B is not output |
B |
| A |
|
| B |
|
USE SIMULATION METHOD TO CHECK
|
|
|