DTC Code | DTC Name |
---|---|
B15C3 | Speaker Output Short |
DESCRIPTION
This DTC is stored when a malfunction occurs in the speakers.
DTC No. | Detection Item | DTC Detection Condition | Trouble Area |
---|---|---|---|
B15C3 | Speaker Output Short | A short is detected in the speaker output circuit |
|
WIRING DIAGRAM
*a | Front No. 1 Speaker Assembly LH |
*b | Front No. 1 Speaker Assembly RH |
*c | Radio and Display Receiver Assembly |
CAUTION / NOTICE / HINT
Tech Tips
When replacing the radio and display receiver assembly, it is necessary to perform the vehicle contract setting for Connected Services (w/ Connected Services Function).
PROCEDURE
CHECK DTC
Clear the DTCs.
Recheck for DTCs and check that no DTCs are output.
OK |
---|
No DTCs are output. |
Result | ||||||||||
---|---|---|---|---|---|---|---|---|---|---|
|
A |
USE SIMULATION METHOD TO CHECK Click here |
C |
CHECK HARNESS AND CONNECTOR (SPEAKER CIRCUIT) Click here |
D |
CHECK HARNESS AND CONNECTOR (SPEAKER CIRCUIT) Click here |
B |
CHECK HARNESS AND CONNECTOR (SPEAKER CIRCUIT)
*1: for LH Side
*2: for RH Side
Disconnect the G40 radio and display receiver assembly connector.
Disconnect the K4*1 and/or J4*2 front No. 1 speaker assembly connector.
Measure the resistance according to the value(s) in the table below.
Standard Resistance | |||||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
|||||||||||||||
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Result | |||
---|---|---|---|
|
NG |
REPAIR OR REPLACE HARNESS OR CONNECTOR |
OK |
INSPECT FRONT NO. 1 SPEAKER ASSEMBLY
Remove the front No. 1 speaker assembly.
Inspect the front No. 1 speaker assembly.
Result | |||
---|---|---|---|
|
OK |
REPLACE RADIO AND DISPLAY RECEIVER ASSEMBLY Click here |
NG |
REPLACE FRONT NO. 1 SPEAKER ASSEMBLY Click here |
CHECK HARNESS AND CONNECTOR (SPEAKER CIRCUIT)
*1: for LH Side
*2: for RH Side
Disconnect the G40 and G41 radio and display receiver assembly connectors.
Disconnect the K4*1 and/or J4*2 front No. 1 speaker assembly connector.
Disconnect the M2*1 and/or L2*2 rear speaker assembly connector.
Measure the resistance according to the value(s) in the table below.
Standard Resistance | |||||||||||||||||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
|||||||||||||||||||||||||||
|
Result | |||
---|---|---|---|
|
NG |
REPAIR OR REPLACE HARNESS OR CONNECTOR |
OK |
INSPECT FRONT NO. 1 SPEAKER ASSEMBLY
Remove the front No. 1 speaker assembly.
Inspect the front No. 1 speaker assembly.
Result | |||
---|---|---|---|
|
NG |
REPLACE FRONT NO. 1 SPEAKER ASSEMBLY Click here |
OK |
INSPECT REAR SPEAKER ASSEMBLY
Remove the rear speaker assembly.
for Smart Cab: Click here
for Double Cab: Click here
Inspect the rear speaker assembly.
for Smart Cab: Click here
for Double Cab: Click here
Result | |||
---|---|---|---|
|
OK |
REPLACE RADIO AND DISPLAY RECEIVER ASSEMBLY Click here |
NG |
REPLACE REAR SPEAKER ASSEMBLY for Smart Cab: Click here |
CHECK HARNESS AND CONNECTOR (SPEAKER CIRCUIT)
*1: for LH Side
*2: for RH Side
Disconnect the G40 and G41 radio and display receiver assembly connectors.
Disconnect the K4*1 and/or J4*2 front No. 1 speaker assembly connector.
Disconnect the K7*1 and/or J7*2 front No. 2 speaker assembly connector.
Disconnect the M2*1 and/or L2*2 rear speaker assembly connector.
Measure the resistance according to the value(s) in the table below.
Standard Resistance | |||||||||||||||||||||||||||||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
|||||||||||||||||||||||||||||||||||||||
|
Result | |||
---|---|---|---|
|
NG |
REPAIR OR REPLACE HARNESS OR CONNECTOR |
OK |
INSPECT FRONT NO. 1 SPEAKER ASSEMBLY
Remove the front No. 1 speaker assembly.
Inspect the front No. 1 speaker assembly.
Result | |||
---|---|---|---|
|
NG |
REPLACE FRONT NO. 1 SPEAKER ASSEMBLY Click here |
OK |
INSPECT REAR SPEAKER ASSEMBLY
Remove the rear speaker assembly.
Inspect the rear speaker assembly.
Result | |||
---|---|---|---|
|
NG |
REPLACE REAR SPEAKER ASSEMBLY Click here |
OK |
CHECK FRONT NO. 2 SPEAKER ASSEMBLY
Replace the front No. 2 speaker assembly.
Clear the DTCs.
Recheck for DTCs and check that no DTCs are output.
OK |
---|
No DTCs are output. |
Result | |||
---|---|---|---|
|
OK |
END (FRONT NO. 2 SPEAKER ASSEMBLY IS DEFECTIVE) |
NG |
REPLACE RADIO AND DISPLAY RECEIVER ASSEMBLY Click here |