| Last Modified: 05-13-2024 | 6.11:8.1.0 | Doc ID: RM1000000026LIW |
| Model Year Start: 2023 | Model: GR Corolla | Prod Date Range: [09/2022 - ] |
| Title: AUDIO / VIDEO: AUDIO AND VISUAL SYSTEM (for Single Knob Type): B1ACC71; Rear Door Right Speaker Cable Actuator Stuck; 2023 - 2025 MY Corolla Corolla Hatchback Corolla HV GR Corolla [09/2022 - ] | ||
|
DTC |
B1ACC71 |
Rear Door Right Speaker Cable Actuator Stuck |
DESCRIPTION
This DTC is stored when the stereo component amplifier assembly detects an open in the rear speaker RH circuit by energizing the speaker line.
|
DTC No. |
Detection Item |
DTC Detection Condition |
Trouble Area |
DTC Output from |
Priority |
|---|---|---|---|---|---|
|
B1ACC71 |
Rear Door Right Speaker Line Cable Actuator Stuck |
Open in the rear speaker RH circuit is detected. (1 trip detection logic) |
|
Navigation System |
A |
WIRING DIAGRAM
PROCEDURE
|
1. |
CHECK HARNESS AND CONNECTOR (STEREO COMPONENT AMPLIFIER ASSEMBLY - REAR SPEAKER ASSEMBLY RH) |
(a) Disconnect the I54 stereo component amplifier assembly connector.
(b) Disconnect the M4 Rear speaker assembly RH connector.
(c) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
|
Tester Connection |
Condition |
Specified Condition |
|---|---|---|
|
I54-11 (RR+) - M4-2 |
Always |
Below 1 Ω |
|
I54-26 (RR-) - M4-1 |
Always |
Below 1 Ω |
| NG |
|
REPAIR OR REPLACE HARNESS OR CONNECTOR |
|
|
2. |
INSPECT REAR SPEAKER ASSEMBLY RH |
Click here
![2020 - 2025 MY Corolla Corolla Hatchback Corolla HV GR Corolla [01/2019 - ]; AUDIO / VIDEO: REAR DOOR SPEAKER: INSPECTION](/t3Portal/stylegraphics/info.gif)
| NG |
|
|
|
3. |
CHECK FOR DTC |
(a) Clear the DTCs.
Body Electrical > Navigation System > Clear DTCs
(b) In accordance with the display of the GTS, perform a speaker circuit energization inspection.
Click here
Body Electrical > Navigation System > Utility
|
Tester Display |
|---|
|
Speaker Line Electricity Check |
(c) Check for DTCs and proceed to the following step.
Body Electrical > Navigation System > Trouble Codes
|
Result |
Proceed to |
|---|---|
|
DTCs are not output |
A |
|
DTC B1ACC71 is output |
B |
| A |
|
END (REAR SPEAKER ASSEMBLY RH IS DEFECTIVE) |
| B |
|
REPLACE STEREO COMPONENT AMPLIFIER ASSEMBLY
|
|
|