RM38N0EC _56 Audio / Visual / Telematics _111823 NAVIGATION / MULTI INFO DISPLAY _0502893 NAVIGATION SYSTEM C

NAVIGATION / MULTI INFO DISPLAY  NAVIGATION SYSTEM  B1ACB71  Front Left Speaker Cable Actuator Stuck  


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
B1ACB71 Front Left Speaker Cable Actuator Stuck Open in the front speaker LH circuit is detected.
(1 trip detection logic)
·

Harness or connector

·

Stereo component amplifier assembly

·

Front No. 1 speaker assembly LH

·

Front No. 2 speaker assembly LH

·

Front No. 3 speaker assembly LH



WIRING DIAGRAM

FRONT NO. 1 SPEAKER ASSEMBLY LH
E506276E16
5.594,1.625 6.052,1.823 0.458,0.198 10 false K2 5.615,1.813 6.823,2.271 1.208,0.458 10 false Stereo Component Amplifier Assembly 5.74,0.677 6.198,0.875 0.458,0.198 10 false WFL+ 5.74,1.208 6.198,1.406 0.458,0.198 10 false WFL- 0.49,1.802 2.844,2.021 2.354,0.219 10 false Front No. 1 Speaker Assembly LH 0.469,1.625 0.927,1.823 0.458,0.198 10 false G2 1.74,1.073 1.948,1.271 0.208,0.198 10 false 1 1.719,0.563 1.927,0.76 0.208,0.198 10 false 2 5.552,0.583 5.802,0.813 0.25,0.229 10 false 4 5.49,1.083 5.698,1.281 0.208,0.198 10 false 19

FRONT NO. 2 SPEAKER ASSEMBLY LH
E506276E22
5.615,1.573 6.073,1.771 0.458,0.198 10 false K2 5.615,1.76 6.823,2.219 1.208,0.458 10 false Stereo Component Amplifier Assembly 5.74,0.688 6.198,0.885 0.458,0.198 10 false FL+ 5.74,1.208 6.198,1.406 0.458,0.198 10 false FL- 0.49,1.802 2.844,2.021 2.354,0.219 10 false Front No. 2 Speaker Assembly LH 0.469,1.625 0.927,1.823 0.458,0.198 10 false E11 1.74,1.073 1.948,1.271 0.208,0.198 10 false 1 1.719,0.563 1.927,0.76 0.208,0.198 10 false 2 5.479,0.583 5.688,0.781 0.208,0.198 10 false 12 5.49,1.073 5.698,1.271 0.208,0.198 10 false 27

FRONT NO. 3 SPEAKER ASSEMBLY LH
E506276E23
5.583,1.615 6.042,1.813 0.458,0.198 10 false K2 5.615,1.813 6.823,2.271 1.208,0.458 10 false Stereo Component Amplifier Assembly 5.74,0.688 6.198,0.885 0.458,0.198 10 false TWL+ 5.74,1.208 6.198,1.406 0.458,0.198 10 false TWL- 0.49,1.802 2.844,2.021 2.354,0.219 10 false Front No. 3 Speaker Assembly LH 0.469,1.625 0.927,1.823 0.458,0.198 10 false E134 1.74,1.063 1.948,1.26 0.208,0.198 10 false 2 1.719,0.563 1.927,0.76 0.208,0.198 10 false 4 5.49,0.563 5.74,0.792 0.25,0.229 10 false 10 5.49,1.073 5.698,1.271 0.208,0.198 10 false 25

PROCEDURE

1.CHECK PROBLEM SYMPTOM
a.

Confirm the problem symptoms and proceed to the respective link.


Result:
Result Proceed to
No sound is output from the front No. 1 speaker assembly LH A
No sound is output from the front No. 3 speaker assembly LH B
No sound is output from the front No. 2 speaker assembly LH C



A

2.CHECK HARNESS AND CONNECTOR (STEREO COMPONENT AMPLIFIER ASSEMBLY - FRONT NO. 1 SPEAKER ASSEMBLY LH)

B

4.CHECK HARNESS AND CONNECTOR (STEREO COMPONENT AMPLIFIER ASSEMBLY - FRONT NO. 3 SPEAKER ASSEMBLY LH)

C

6.CHECK HARNESS AND CONNECTOR (STEREO COMPONENT AMPLIFIER ASSEMBLY - FRONT NO. 2 SPEAKER ASSEMBLY LH)
2.CHECK HARNESS AND CONNECTOR (STEREO COMPONENT AMPLIFIER ASSEMBLY - FRONT NO. 1 SPEAKER ASSEMBLY LH)
a.

Disconnect the K2 stereo component amplifier assembly connector.


b.

Disconnect the G2 front No. 1 speaker assembly LH connector.


c.

Measure the resistance according to the value(s) in the table below.

Standard Resistance:
Tester Connection Condition Specified Condition

Click Location & Routing(K2,G2)Location & Routing

Click Connector(K2)Body>Floor Wire>Stereo Component Amplifier Assembly

Click Connector(G2)Body>Front Door Wire RH / Front Door Wire LH>Front No. 1 Speaker Assembly LH

K2-4 (WFL+) - G2-2 Always Below 1 Ω
K2-19 (WFL-) - G2-1 Always Below 1 Ω



Result:
Proceed to
OK
NG



OK

3.INSPECT FRONT NO. 1 SPEAKER ASSEMBLY LH

NG

REPAIR OR REPLACE HARNESS OR CONNECTOR

4.CHECK HARNESS AND CONNECTOR (STEREO COMPONENT AMPLIFIER ASSEMBLY - FRONT NO. 3 SPEAKER ASSEMBLY LH)
a.

Disconnect the K2 stereo component amplifier assembly connector.


b.

Disconnect the E11 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

Click Location & Routing(K2,E11)Location & Routing

Click Connector(K2)Body>Floor Wire>Stereo Component Amplifier Assembly

Click Connector(E11)Instrument Panel>Instrument Panel Wire / Telephone Computer Wire>Front No. 2 Speaker Assembly LH

K2-12 (FL+) - E11-2 Always Below 1 Ω
K2-27 (FL-) - E11-1 Always Below 1 Ω



Result:
Proceed to
OK
NG



OK

5.INSPECT FRONT NO. 3 SPEAKER ASSEMBLY LH

NG

REPAIR OR REPLACE HARNESS OR CONNECTOR

6.CHECK HARNESS AND CONNECTOR (STEREO COMPONENT AMPLIFIER ASSEMBLY - FRONT NO. 2 SPEAKER ASSEMBLY LH)
a.

Disconnect the K2 stereo component amplifier assembly connector.


b.

Disconnect the E134 front No. 2 speaker assembly LH connector.


c.

Measure the resistance according to the value(s) in the table below.

Standard Resistance:
Tester Connection Condition Specified Condition

Click Location & Routing(K2,E134)Location & Routing

Click Connector(K2)Body>Floor Wire>Stereo Component Amplifier Assembly

Click Connector(E134)Instrument Panel>Instrument Panel Wire / Telephone Computer Wire>Front No. 3 Speaker Assembly LH

K2-10 (TWL+) - E134-4 Always Below 1 Ω
K2-25 (TWL-) - E134-2 Always Below 1 Ω



Result:
Proceed to
OK
NG



OK

7.REPLACE FRONT NO. 2 SPEAKER ASSEMBLY LH

NG

REPAIR OR REPLACE HARNESS OR CONNECTOR

7.REPLACE FRONT NO. 2 SPEAKER ASSEMBLY LH
a.

Replace the speaker assembly with a new or known good one.

HINT:

Click hereAudio / Visual / Telematics>AUDIO / VIDEO>PILLAR SPEAKER>REMOVAL


Result:
Proceed to
NEXT




NEXT

8.CHECK FOR DTC
8.CHECK FOR DTC
a.

Clear the DTCs.

Body Electrical > Navigation System > Clear DTCs
50002 496

b.

In accordance with the display of the GTS, perform a speaker circuit energization inspection.

Click hereAudio / Visual / Telematics>NAVIGATION / MULTI INFO DISPLAY>NAVIGATION SYSTEM>UTILITY

Body Electrical > Navigation System > Utility
Tester Display
Speaker Line Electricity Check
50005 496 4768

c.

Check for DTCs and proceed to the following step.

Body Electrical > Navigation System > Trouble Codes
50001 496

Result:
Result Proceed to
DTCs are not output A
DTC B1ACB71 is output B



A

END (FRONT NO. 2 SPEAKER ASSEMBLY LH IS DEFECTIVE)

B

REPLACE STEREO COMPONENT AMPLIFIER ASSEMBLY

Click hereAudio / Visual / Telematics>AUDIO / VIDEO>STEREO COMPONENT AMPLIFIER>REMOVAL