| Last Modified: 11-20-2023 | 6.11:8.1.0 | Doc ID: RM100000001544L |
| Model Year Start: 2018 | Model: Camry HV | Prod Date Range: [07/2017 - 10/2020] |
| Title: PARK ASSIST / MONITORING: INTELLIGENT CLEARANCE SONAR SYSTEM: C164B; Communication Error From Clearance Sonar ECU to VSC; 2018 - 2020 MY Camry HV [07/2017 - 10/2020] | ||
|
DTC |
C164B |
Communication Error From Clearance Sonar ECU to VSC |
DESCRIPTION
The electronically controlled brake system receives intelligent clearance sonar system information from the clearance warning ECU assembly via CAN communication. When it is determined that there is a communication error between the skid control ECU and clearance warning ECU assembly, DTC C164B is stored.
|
DTC No. |
Detection Item |
DTC Detection Condition |
Trouble Area |
|---|---|---|---|
|
C164B |
Communication Error From Clearance Sonar ECU to VSC |
A communication error between the skid control ECU and clearance warning ECU assembly is detected |
|
CAUTION / NOTICE / HINT
NOTICE:
-
After turning the power switch off, waiting time may be required before disconnecting the cable from the negative (-) auxiliary battery terminal. Therefore make sure to read the disconnecting the cable from the negative (-) auxiliary battery terminal notices before proceeding with work.
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![2018 - 2019 MY Camry HV [07/2017 - 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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PROCEDURE
|
1. |
CHECK DTC OUTPUT |
(a) Using the Techstream, check for DTCs according to the prompts on the screen.
HINT:
After turning the power 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:
- If DTC C164B is not output after clearing the DTCs, an intermittent communication error between the clearance warning ECU assembly and skid control ECU is suspected.
-
If DTC C164B 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 C164B is output |
A |
|
DTC C164B is not output |
B |
| B |
|
USE SIMULATION METHOD TO CHECK
|
|
|
2. |
CHECK DTC OUTPUT (ELECTRONICALLY CONTROLLED BRAKE SYSTEM) |
(a) Using the Techstream, check for DTCs according to the prompts on the screen.
Chassis > ABS/VSC/TRAC > Trouble Codes
|
Result |
Proceed to |
|---|---|
|
DTC is not output |
A |
|
DTC is output |
B |
| B |
|
GO TO ELECTRONICALLY CONTROLLED BRAKE SYSTEM
|
|
|
3. |
REPLACE CLEARANCE WARNING ECU ASSEMBLY |
(a) Replace the clearance warning ECU assembly with a known good one.
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|
|
4. |
CHECK DTC OUTPUT |
(a) Using the Techstream, check for DTCs according to the prompts on the screen.
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
|
Result |
Proceed to |
|---|---|
|
DTC C164B is output |
A |
|
DTC C164B is not output |
B |
| A |
|
REPLACE SKID CONTROL ECU
|
| B |
|
END (CLEARANCE WARNING ECU ASSEMBLY DEFECTIVE) |
|
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