Dtc B15C3 Speaker Output Short


DESCRIPTION

WIRING DIAGRAM

INSPECTION PROCEDURE

CLEAR DTC

CHECK FOR DTC

CHECK VEHICLE CONDITION (SPEAKER TYPE)

CHECK HARNESS AND CONNECTOR (SPEAKER CIRCUIT)

INSPECT FRONT NO. 1 SPEAKER ASSEMBLY

CHECK FRONT NO. 2 SPEAKER ASSEMBLY

INSPECT REAR SPEAKER SET

CHECK HARNESS AND CONNECTOR (SPEAKER CIRCUIT)

INSPECT FRONT NO. 1 SPEAKER ASSEMBLY

CHECK FRONT NO. 2 SPEAKER ASSEMBLY

CHECK FRONT NO. 4 SPEAKER ASSEMBLY

CHECK FRONT NO. 3 SPEAKER ASSEMBLY

INSPECT REAR SPEAKER SET

DTC B15C3 Speaker Output Short


DESCRIPTION


DTC Code
DTC Detection Condition
Trouble Area
B15C3
A short is detected in the speaker output circuit.
  1. Radio and Display Receiver Assembly*1
  2. Stereo component amplifier assembly*2
  3. Speakers
  4. Harness or connector
  1. *1: for 6 Speakers
  2. *2: for 9 Speakers

WIRING DIAGRAM


Land Cruiser, Land Cruiser Prado. Grj150 Trj150,155 Kdj150,155 Lj150, Gdj150,155.Audio Video.Audio And Visual System (For Radio Receiver Type). Dtc B15C3 Speaker Output Short


Land Cruiser, Land Cruiser Prado. Grj150 Trj150,155 Kdj150,155 Lj150, Gdj150,155.Audio Video.Audio And Visual System (For Radio Receiver Type). Dtc B15C3 Speaker Output Short


INSPECTION PROCEDURE

HINT:
  1. After the inspection is completed, clear the DTCs.
  2. When replacing the radio and display receiver assembly, it is necessary to perform the vehicle contract setting for Connected Services (w/ Connected Services Function).
1.CLEAR DTC

  1. Clear the DTC (LandCruiser RM0000014CZ0EQX.html).


NEXT


2.CHECK FOR DTC

  1. Recheck for DTCs and check if the same DTC is output again (LandCruiser RM0000014CZ0EQX.html).

    OK:
    DTC B15C3 is not output.


NG
Go to step 3
OK

USE SIMULATION METHOD TO CHECK (LandCruiser RM000003YMJ00XX.html)

3.CHECK VEHICLE CONDITION (SPEAKER TYPE)

  1. Check the vehicle condition.

    Result
    Result
    		Proceed to
    for 6 Speakers
    		A
    for 9 Speakers
    		B


B
Go to step 8
A


4.CHECK HARNESS AND CONNECTOR (SPEAKER CIRCUIT)
  1. *1: for RH Side
  2. *2: for LH Side

  1. Disconnect the H48 and H49 radio and display receiver assembly connectors.

  1. Disconnect the J4*1 and/or K3*2 front No. 1 speaker assembly connector.

  1. Disconnect the H34*1 and/or H35*2 front No. 2 speaker assembly connector.

  1. for 3 Door:
    Disconnect the Q32*1 and/or R37*2 rear speaker set connector.

  1. for 5 Door:
    Disconnect the L1*1 and/or M1*2 rear speaker set connector.

    Standard Resistance:
    for 3 Door (RH Side)
    Tester Connection
    		Condition
    		Specified Condition
    H49-1 (FR+) - H34-3 (TWR+)
    		Always
    		Below 1 Ω
    H49-5 (FR-) - H34-1 (TWR-)
    		Always
    		Below 1 Ω
    H34-4 (+) - J4-1
    		Always
    		Below 1 Ω
    H34-2 (-) - J4-2
    		Always
    		Below 1 Ω
    H48-1 (RR+) - Q32-1
    		Always
    		Below 1 Ω
    H48-3 (RR-) - Q32-2
    		Always
    		Below 1 Ω
    H49-1 (FR+) - Body ground
    		Always
    		10 kΩ or higher
    H49-5 (FR-) - Body ground
    		Always
    		10 kΩ or higher
    H34-4 (+) - Body ground
    		Always
    		10 kΩ or higher
    H34-2 (-) - Body ground
    		Always
    		10 kΩ or higher
    H48-1 (RR+) - Body ground
    		Always
    		10 kΩ or higher
    H48-3 (RR-) - Body ground
    		Always
    		10 kΩ or higher
    for 3 Door (LH Side)
    Tester Connection
    		Condition
    		Specified Condition
    H49-2 (FL+) - H35-3 (TWL+)
    		Always
    		Below 1 Ω
    H49-6 (FL-) - H35-1 (TWL-)
    		Always
    		Below 1 Ω
    H35-4 (+) - K3-1
    		Always
    		Below 1 Ω
    H35-2 (-) - K3-2
    		Always
    		Below 1 Ω
    H48-2 (RL+) - R37-1
    		Always
    		Below 1 Ω
    H48-6 (RL-) - R37-2
    		Always
    		Below 1 Ω
    H49-2 (FL+) - Body ground
    		Always
    		10 kΩ or higher
    H49-6 (FL-) - Body ground
    		Always
    		10 kΩ or higher
    H35-4 (+) - Body ground*2
    		Always
    		10 kΩ or higher
    H35-2 (-) - Body ground*2
    		Always
    		10 kΩ or higher
    H48-2 (RL+) - Body ground
    		Always
    		10 kΩ or higher
    H48-6 (RL-) - Body ground
    		Always
    		10 kΩ or higher
    for 5 Door (RH Side)
    Tester Connection
    		Condition
    		Specified Condition
    H49-1 (FR+) - H34-3 (TWR+)
    		Always
    		Below 1 Ω
    H49-5 (FR-) - H34-1 (TWR-)
    		Always
    		Below 1 Ω
    H34-4 (+) - J4-1
    		Always
    		Below 1 Ω
    H34-2 (-) - J4-2
    		Always
    		Below 1 Ω
    H48-1 (RR+) - L1-1
    		Always
    		Below 1 Ω
    H48-3 (RR-) - L1-2
    		Always
    		Below 1 Ω
    H49-1 (FR+) - Body ground
    		Always
    		10 kΩ or higher
    H49-5 (FR-) - Body ground
    		Always
    		10 kΩ or higher
    H34-4 (+) - Body ground
    		Always
    		10 kΩ or higher
    H34-2 (-) - Body ground
    		Always
    		10 kΩ or higher
    H48-1 (RR+) - Body ground
    		Always
    		10 kΩ or higher
    H48-3 (RR-) - Body ground
    		Always
    		10 kΩ or higher
    for 5 Door (LH Side)
    Tester Connection
    		Condition
    		Specified Condition
    H49-2 (FL+) - H35-3 (TWL+)
    		Always
    		Below 1 Ω
    H49-6 (FL-) - H35-1 (TWL-)
    		Always
    		Below 1 Ω
    H35-4 (+) - K3-1
    		Always
    		Below 1 Ω
    H35-2 (-) - K3-2
    		Always
    		Below 1 Ω
    H48-2 (RL+) - M1-1
    		Always
    		Below 1 Ω
    H48-6 (RL-) - M1-2
    		Always
    		Below 1 Ω
    H49-2 (FL+) - Body ground
    		Always
    		10 kΩ or higher
    H49-6 (FL-) - Body ground
    		Always
    		10 kΩ or higher
    H35-4 (+) - Body ground*2
    		Always
    		10 kΩ or higher
    H35-2 (-) - Body ground*2
    		Always
    		10 kΩ or higher
    H48-2 (RL+) - Body ground
    		Always
    		10 kΩ or higher
    H48-6 (RL-) - Body ground
    		Always
    		10 kΩ or higher


NG
REPAIR OR REPLACE HARNESS OR CONNECTOR
OK


5.INSPECT FRONT NO. 1 SPEAKER ASSEMBLY

  1. Remove the front No. 1 speaker assembly (LandCruiser RM000002MK7039X.html).

  1. Inspect the front No. 1 speaker assembly (LandCruiser RM000002MK5028X.html).



NG
REPLACE FRONT NO. 1 SPEAKER ASSEMBLY (LandCruiser RM000002MK7039X.html)
OK


6.CHECK FRONT NO. 2 SPEAKER ASSEMBLY

  1. Replace the front No. 2 speaker with a known good one (LandCruiser RM000000VEO04BX.html).

  1. Check that the malfunction disappears.

    HINT:
    1. Connect all the connectors that were disconnected from the front No. 2 speaker assemblies.
    2. When there is a possibility that either the right or left front speaker is defective, inspect by interchanging the right one with the left one.
    3. Perform the above inspection on both LH and RH sides.
    OK:
    Malfunction disappears.


NG
Go to step 7
OK

END (FRONT NO. 2 SPEAKER ASSEMBLY IS DEFECTIVE)

7.INSPECT REAR SPEAKER SET

  1. Remove the rear speaker set.

    1. for 3 Door: LandCruiser RM000002MKB043X.html
    2. for 5 Door: LandCruiser RM000002MKB042X.html

  1. Inspect the rear speaker set.

    1. for 3 Door: LandCruiser RM000002MK902VX.html
    2. for 5 Door: LandCruiser RM000002MK902UX.html
Result
Result
Proceed to
OK
A
NG (for 3 Door)
B
NG (for 5 Door)
C


B
REPLACE REAR SPEAKER SET (LandCruiser RM000002MKB043X.html)

C
REPLACE REAR SPEAKER SET (LandCruiser RM000002MKB042X.html)
A

REPLACE RADIO AND DISPLAY RECEIVER ASSEMBLY (LandCruiser RM000003AHY02NX.html)

8.CHECK HARNESS AND CONNECTOR (SPEAKER CIRCUIT)
  1. *1: for RH Side
  2. *2: for LH Side

  1. Disconnect the H67 stereo component amplifier assembly connector.

  1. Disconnect the J4*1 and/or K3*2 front No. 1 speaker assembly connector.

  1. Disconnect the H10*1 and/or H13*2 front No. 2 speaker assembly connector.

  1. Disconnect the H21*1 and/or H22*2 front No. 3 speaker assembly connector.

  1. Disconnect the H14 front No. 4 speaker assembly connector.

  1. for 3 Door:
    Disconnect the Q32*1 and/or R37*2 rear speaker set connector.

  1. for 5 Door:
    Disconnect the L1*1 and/or M1*2 rear speaker set connector.

    Standard Resistance:
    for Front No. 4 Speaker Assembly
    Tester Connection
    		Condition
    		Specified Condition
    H67-7 (CTR+) - H14-2
    		Always
    		Below 1 Ω
    H67-22 (CTR-) - H14-1
    		Always
    		Below 1 Ω
    H67-7 (CTR+) - Body ground
    		Always
    		10 kΩ or higher
    H67-22 (CTR-) - Body ground
    		Always
    		10 kΩ or higher
    for 3 Door (RH Side)
    Tester Connection
    		Condition
    		Specified Condition
    H67-5 (WFR+) - J4-1
    		Always
    		Below 1 Ω
    H67-20 (WFR-) - J4-2
    		Always
    		Below 1 Ω
    H67-13 (FR+) - H21-1 (TWR+)
    		Always
    		Below 1 Ω
    H67-28 (FR-) - H21-2 (TWR-)
    		Always
    		Below 1 Ω
    H21-3 (+) - H10-2
    		Always
    		Below 1 Ω
    H21-4 (-) - H10-1
    		Always
    		Below 1 Ω
    H67-15 (RR+) - Q32-1
    		Always
    		Below 1 Ω
    H67-30 (RR-) - Q32-2
    		Always
    		Below 1 Ω
    H67-5 (WFR+) - Body ground
    		Always
    		10 kΩ or higher
    H67-20 (WFR-) - Body ground
    		Always
    		10 kΩ or higher
    H67-13 (FR+) - Body ground
    		Always
    		10 kΩ or higher
    H67-28 (FR-) - Body ground
    		Always
    		10 kΩ or higher
    H21-3 (+) - Body ground
    		Always
    		10 kΩ or higher
    H21-4 (-) - Body ground
    		Always
    		10 kΩ or higher
    H67-15 (RR+) - Body ground
    		Always
    		10 kΩ or higher
    H67-30 (RR-) - Body ground
    		Always
    		10 kΩ or higher
    for 3 Door (LH Side)
    Tester Connection
    		Condition
    		Specified Condition
    H67-4 (WFL+) - K3-1
    		Always
    		Below 1 Ω
    H67-19 (WFL-) - K3-2
    		Always
    		Below 1 Ω
    H67-12 (FL+) - H22-1 (TWL+)
    		Always
    		Below 1 Ω
    H67-27 (FL-) - H22-2 (TWL-)
    		Always
    		Below 1 Ω
    H22-3 (+) - H13-2
    		Always
    		Below 1 Ω
    H22-4 (-) - H13-1
    		Always
    		Below 1 Ω
    H67-14 (RL+) - R37-1
    		Always
    		Below 1 Ω
    H67-29 (RL-) - R37-2
    		Always
    		Below 1 Ω
    H67-4 (WFL+) - Body ground
    		Always
    		10 kΩ or higher
    H67-19 (WFL-) - Body ground
    		Always
    		10 kΩ or higher
    H67-12 (FL+) - Body ground
    		Always
    		10 kΩ or higher
    H67-27 (FL-) - Body ground
    		Always
    		10 kΩ or higher
    H22-3 (+) - Body ground
    		Always
    		10 kΩ or higher
    H22-4 (-) - Body ground
    		Always
    		10 kΩ or higher
    H67-14 (RL+) - Body ground
    		Always
    		10 kΩ or higher
    H67-29 (RL-) - Body ground
    		Always
    		10 kΩ or higher
    for 5 Door (RH Side)
    Tester Connection
    		Condition
    		Specified Condition
    H67-5 (WFR+) - J4-1
    		Always
    		Below 1 Ω
    H67-20 (WFR-) - J4-2
    		Always
    		Below 1 Ω
    H67-13 (FR+) - H21-1 (TWR+)
    		Always
    		Below 1 Ω
    H67-28 (FR-) - H21-2 (TWR-)
    		Always
    		Below 1 Ω
    H21-3 (+) - H10-2
    		Always
    		Below 1 Ω
    H21-4 (-) - H10-1
    		Always
    		Below 1 Ω
    H67-15 (RR+) - L1-1
    		Always
    		Below 1 Ω
    H67-30 (RR-) - L1-2
    		Always
    		Below 1 Ω
    H67-5 (WFR+) - Body ground
    		Always
    		10 kΩ or higher
    H67-20 (WFR-) - Body ground
    		Always
    		10 kΩ or higher
    H67-13 (FR+) - Body ground
    		Always
    		10 kΩ or higher
    H67-28 (FR-) - Body ground
    		Always
    		10 kΩ or higher
    H21-3 (+) - Body ground
    		Always
    		10 kΩ or higher
    H21-4 (-) - Body ground
    		Always
    		10 kΩ or higher
    H67-15 (RR+) - Body ground
    		Always
    		10 kΩ or higher
    H67-30 (RR-) - Body ground
    		Always
    		10 kΩ or higher
    for 5 Door (LH Side)
    Tester Connection
    		Condition
    		Specified Condition
    H67-4 (WFL+) - K3-1
    		Always
    		Below 1 Ω
    H67-19 (WFL-) - K3-2
    		Always
    		Below 1 Ω
    H67-12 (FL+) - H22-1 (TWL+)
    		Always
    		Below 1 Ω
    H67-27 (FL-) - H22-2 (TWL-)
    		Always
    		Below 1 Ω
    H22-3 (+) - H13-2
    		Always
    		Below 1 Ω
    H22-4 (-) - H13-1
    		Always
    		Below 1 Ω
    H67-14 (RL+) - M1-1
    		Always
    		Below 1 Ω
    H67-29 (RL-) - M1-2
    		Always
    		Below 1 Ω
    H67-4 (WFL+) - Body ground
    		Always
    		10 kΩ or higher
    H67-19 (WFL-) - Body ground
    		Always
    		10 kΩ or higher
    H67-12 (FL+) - Body ground
    		Always
    		10 kΩ or higher
    H67-27 (FL-) - Body ground
    		Always
    		10 kΩ or higher
    H22-3 (+) - Body ground
    		Always
    		10 kΩ or higher
    H22-4 (-) - Body ground
    		Always
    		10 kΩ or higher
    H67-14 (RL+) - Body ground
    		Always
    		10 kΩ or higher
    H67-29 (RL-) - Body ground
    		Always
    		10 kΩ or higher


NG
REPAIR OR REPLACE HARNESS OR CONNECTOR
OK


9.INSPECT FRONT NO. 1 SPEAKER ASSEMBLY

  1. Remove the front No. 1 speaker assembly (LandCruiser RM000002MK7039X.html).

  1. Inspect the front No. 1 speaker assembly (LandCruiser RM000002MK5028X.html).



NG
REPLACE FRONT NO. 1 SPEAKER ASSEMBLY (LandCruiser RM000002MK7039X.html)
OK


10.CHECK FRONT NO. 2 SPEAKER ASSEMBLY

  1. Replace the front No. 2 speaker with a known good one (LandCruiser RM000000VEO04BX.html).

  1. Check that the malfunction disappears.

    HINT:
    1. Connect all the connectors that were disconnected from the front No. 2 speaker assemblies.
    2. When there is a possibility that either the right or left front speaker is defective, inspect by interchanging the right one with the left one.
    3. Perform the above inspection on both LH and RH sides.
    OK:
    Malfunction disappears.


NG
Go to step 11
OK

END (FRONT NO. 2 SPEAKER ASSEMBLY IS DEFECTIVE)

11.CHECK FRONT NO. 4 SPEAKER ASSEMBLY

  1. Replace the front No. 4 speaker with a known good one (LandCruiser RM000000VEO04BX.html).

  1. Check that the malfunction disappears.

    HINT:
    Connect all the connectors that were disconnected from the front No. 4 speaker assemblies.
    OK:
    Malfunction disappears.


NG
Go to step 12
OK

END (FRONT NO. 4 SPEAKER ASSEMBLY IS DEFECTIVE)

12.CHECK FRONT NO. 3 SPEAKER ASSEMBLY

  1. Replace the front No. 3 speaker with a known good one (LandCruiser RM000003AW801GX.html).

  1. Check that the malfunction disappears.

    HINT:
    1. Connect all the connectors that were disconnected from the front No. 3 speaker assemblies.
    2. When there is a possibility that either the right or left front speaker is defective, inspect by interchanging the right one with the left one.
    3. Perform the above inspection on both LH and RH sides.
    OK:
    Malfunction disappears.


NG
Go to step 13
OK

END (FRONT NO. 3 SPEAKER ASSEMBLY IS DEFECTIVE)

13.INSPECT REAR SPEAKER SET

  1. Remove the rear speaker set.

    1. for 3 Door: LandCruiser RM000002MKB043X.html
    2. for 5 Door: LandCruiser RM000002MKB042X.html

  1. Inspect the rear speaker set.

    1. for 3 Door: LandCruiser RM000002MK902VX.html
    2. for 5 Door: LandCruiser RM000002MK902UX.html
Result
Result
Proceed to
OK
A
NG (for 3 Door)
B
NG (for 5 Door)
C


B
REPLACE REAR SPEAKER SET (LandCruiser RM000002MKB043X.html)

C
REPLACE REAR SPEAKER SET (LandCruiser RM000002MKB042X.html)
A

REPLACE STEREO COMPONENT AMPLIFIER ASSEMBLY (LandCruiser RM000003AI9027X.html)