Toyota Corolla Cross: Front Left Speaker Cable Actuator Stuck (B1ACB71)
DESCRIPTION
This DTC is stored when the stereo component amplifier assembly detects an open in the front speaker LH circuit by energizing the speaker line.
|
DTC No. |
Detection Item |
DTC Detection Condition |
Trouble Area |
DTC Output from |
Priority |
|---|---|---|---|---|---|
|
B1ACB71 |
Front Left Speaker Cable Actuator Stuck |
Open in the front speaker LH circuit is detected. (1 trip detection logic) |
|
Navigation System |
A |
WIRING DIAGRAM
PROCEDURE
|
1. |
CHECK HARNESS AND CONNECTOR (STEREO COMPONENT AMPLIFIER ASSEMBLY - FRONT NO. 2 SPEAKER ASSEMBLY LH, FRONT NO. 3 SPEAKER ASSEMBLY LH) |
(a) Disconnect the I233 stereo component amplifier assembly connector.
(b) Disconnect the I238 front No. 2 speaker assembly LH connector.
(c) Disconnect the I236 front No. 3 speaker assembly LH connector.
(d) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
|
Tester Connection |
Condition |
Specified Condition |
|---|---|---|
|
I233-13 (FL+) - I236-4 (+TW) |
Always |
Below 1 Ω |
|
I233-12 (TWL+) - I238-2 (TWL+) |
Always |
Below 1 Ω |
|
I233-28 (FL-) - I236-2 (-TW) |
Always |
Below 1 Ω |
|
I233-27 (TWL-) - I238-1 (TWL-) |
Always |
Below 1 Ω |
| NG | .gif)
|
REPAIR OR REPLACE HARNESS OR CONNECTOR |
|
.gif)
|
2. |
CHECK HARNESS AND CONNECTOR (FRONT NO. 1 SPEAKER ASSEMBLY LH - FRONT NO. 3 SPEAKER ASSEMBLY LH) |
(a) Disconnect the L1 front No. 1 speaker assembly LH connector.
(b) Disconnect the I236 front No. 3 speaker assembly LH connector.
(c) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
|
Tester Connection |
Condition |
Specified Condition |
|---|---|---|
|
L1-1 (+) - I236-3 (+) |
Always |
Below 1 Ω |
|
L1-2 (-) - I236-1 (-) |
Always |
Below 1 Ω |
| NG |
|
REPAIR OR REPLACE HARNESS OR CONNECTOR |
|
|
3. |
INSPECT FRONT NO. 1 SPEAKER ASSEMBLY LH |
Click here .gif)
| NG |
|
REPLACE FRONT NO. 1 SPEAKER ASSEMBLY LH |
|
|
4. |
INSPECT FRONT NO. 2 SPEAKER ASSEMBLY LH |
Click here
| NG |
|
REPLACE FRONT NO. 2 SPEAKER ASSEMBLY LH |
|
|
5. |
INSPECT FRONT NO. 3 SPEAKER ASSEMBLY LH |
Click here
| OK |
|
REPLACE STEREO COMPONENT AMPLIFIER ASSEMBLY |
| NG |
|
REPLACE FRONT NO. 3 SPEAKER ASSEMBLY LH |
