DTC B1AD0-71: Center Speaker Cable Actuator Stuck [10/2022 - ]: Procedure
- CHECK OPTIONAL COMPONENTS
- Check installed audio system and proceed to the following step.
Result
Result Proceed to w/o "Mark Levinson" sound system A w/ "Mark Levinson" sound system B
Result:
B
See step 6
Result:
A
See step 2
- Check installed audio system and proceed to the following step.
- CHECK HARNESS AND CONNECTOR (STEREO COMPONENT AMPLIFIER ASSEMBLY - FRONT NO. 4 SPEAKER ASSEMBLY)
Pre-procedure1
- Disconnect the C31 stereo component amplifier assembly connector.
- Disconnect the C153 front No. 4 speaker assembly connector.
- Measure the resistance according to the value(s) in the table below.
Standard Resistance
Tester Connection Condition Specified Condition Result C31-7 (CTR+) - C153-2 (+) Always Below 1 Ω Ω C31-22 (CTR-) - C153-1 (-) Always Below 1 Ω Ω Result
Proceed to OK NG
Post-procedure1
- None
Result:
NG
REPAIR OR REPLACE HARNESS OR CONNECTOR
Result:
OK
See step 3
- INSPECT FRONT NO. 4 SPEAKER ASSEMBLY
Refer to INSPECTION [10/2022 - ]
Result
Proceed to OK NG Result:
NG
REPLACE FRONT NO. 4 SPEAKER ASSEMBLY. Refer to REMOVAL [10/2022 - ]
Result:
OK
See step 4
- CLEAR DTC
Result:
NEXT
See step 5
- CHECK FOR DTC
Pre-procedure1
- In accordance with the display of the GTS, perform a speaker circuit energization inspection.
HINT:
Refer to UTILITY [10/2022 - ]
Body Electrical > Navigation System > Utility
Tester Display Speaker Line Electricity Check
- Check for DTCs and proceed to the following step.
Body Electrical > Navigation System > Trouble Codes
Result
Result Proceed to DTCs are not output A B1AD0-71 is output B
Post-procedure1
- None
Result:
A
END (FRONT NO. 4 SPEAKER ASSEMBLY IS DEFECTIVE)
Result:
B
REPLACE STEREO COMPONENT AMPLIFIER ASSEMBLY. Refer to REMOVAL [10/2022 - 08/2023] , or refer to REMOVAL [08/2023 - ]
- In accordance with the display of the GTS, perform a speaker circuit energization inspection.
- CHECK HARNESS AND CONNECTOR (STEREO COMPONENT AMPLIFIER ASSEMBLY - FRONT NO. 4 SPEAKER ASSEMBLY)
Pre-procedure1
- Disconnect the C31 stereo component amplifier assembly connector.
- Disconnect the C153 front No. 4 speaker assembly connector.
- Measure the resistance according to the value(s) in the table below.
Standard Resistance
Tester Connection Condition Specified Condition Result C31-7 (CTR+) - C153-2 (+) Always Below 1 Ω Ω C31-22 (CTR-) - C153-1 (-) Always Below 1 Ω Ω Result
Proceed to OK NG
Post-procedure1
- None
Result:
NG
REPAIR OR REPLACE HARNESS OR CONNECTOR
Result:
OK
See step 7
- REPLACE FRONT NO. 4 SPEAKER ASSEMBLY
- Replace the speaker assembly with a new or known good one.
HINT:
Refer to REMOVAL [10/2022 - ]
Result
Proceed to NEXT
Result:
NEXT
See step 8
- Replace the speaker assembly with a new or known good one.
- CLEAR DTC
Result:
NEXT
See step 9
- CHECK FOR DTC
Pre-procedure1
- In accordance with the display of the GTS, perform a speaker circuit energization inspection.
HINT:
Refer to UTILITY [10/2022 - ]
Body Electrical > Navigation System > Utility
Tester Display Speaker Line Electricity Check
- Check for DTCs and proceed to the following step.
Body Electrical > Navigation System > Trouble Codes
Result
Result Proceed to DTCs are not output A B1AD0-71 is output B
Post-procedure1
- None
Result:
A
END (FRONT NO. 4 SPEAKER ASSEMBLY IS DEFECTIVE)
Result:
B
REPLACE STEREO COMPONENT AMPLIFIER ASSEMBLY. Refer to REMOVAL [10/2022 - 08/2023] , or refer to REMOVAL [08/2023 - ]
- In accordance with the display of the GTS, perform a speaker circuit energization inspection.