AUDIO AND VISUAL SYSTEM(for Radio and Display Type), Diagnostic DTC:B15C3
| 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
for 6 Speakers
for 11 Speakers
PROCEDURE
CONFIRM MODEL
Choose the model to be inspected.
Result
Result
Proceed to
for 6 Speakers
A
for 11 Speakers
B
B CHECK HARNESS AND CONNECTOR (SPEAKER CIRCUIT)Click here
CHECK HARNESS AND CONNECTOR (SPEAKER CIRCUIT)
*1: for RH Side
*2: for LH Side
Disconnect the G141 and G142 radio and display receiver assembly connectors.
Disconnect the I1*1 and/or J1*2 front No. 1 speaker assembly connector.
Disconnect the H3*1 and/or H1*2 front No. 2 speaker assembly connector.
Disconnect the K2*1 and/or L2*2 rear speaker assembly connector.
Measure the resistance according to the value(s) in the table below.
Standard Resistance
for LH Side
Tester Connection
Condition
Specified Condition
G141-2 (FL+) - H1-4 (TWL+)
Always
Below 1 Ω
G141-6 (FL-) - H1-2 (TWL-)
Always
Below 1 Ω
H1-3 (+) - J1-1
Always
Below 1 Ω
H1-1 (-) - J1-2
Always
Below 1 Ω
G142-2 (RL+) - L2-1
Always
Below 1 Ω
G142-6 (RL-) - L2-2
Always
Below 1 Ω
G141-2 (FL+) - Body ground
Always
10 kΩ or higher
G141-6 (FL-) - Body ground
Always
10 kΩ or higher
G142-2 (RL+) - Body ground
Always
10 kΩ or higher
G142-6 (RL-) - Body ground
Always
10 kΩ or higher
H1-3 (+) - Body ground
Always
10 kΩ or higher
H1-1 (-) - Body ground
Always
10 kΩ or higher
for RH Side
Tester Connection
Condition
Specified Condition
G141-1 (FR+) - H3-4 (TWR+)
Always
Below 1 Ω
G141-5 (FR-) - H3-2 (TWR-)
Always
Below 1 Ω
H3-3 (+) - I1-1
Always
Below 1 Ω
H3-1 (-) - I1-2
Always
Below 1 Ω
G142-1 (RR+) - K2-1
Always
Below 1 Ω
G142-3 (RR-) - K2-2
Always
Below 1 Ω
G141-1 (FR+) - Body ground
Always
10 kΩ or higher
G141-5 (FR-) - Body ground
Always
10 kΩ or higher
G142-1 (RR+) - Body ground
Always
10 kΩ or higher
G142-3 (RR-) - Body ground
Always
10 kΩ or higher
H3-3 (+) - Body ground
Always
10 kΩ or higher
H3-1 (-) - Body ground
Always
10 kΩ or higher
Result
Proceed to
OK
NG
NG REPAIR OR REPLACE HARNESS OR CONNECTOR
INSPECT FRONT NO. 1 SPEAKER ASSEMBLY
Remove the front No. 1 speaker assembly.
Inspect the front No. 1 speaker assembly.
Result
Proceed to
OK
NG
CHECK FRONT NO. 2 SPEAKER ASSEMBLY
Replace the front No. 2 speaker assembly.
Clear the DTCs.
Body Electrical > Navigation System > Clear DTCs
Check for DTCs.
Body Electrical > Navigation System > Trouble Codes
OK
No DTCs are output.
Tip:Connect all the connectors to the front No. 2 speaker assemblies that were disconnected.
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.
Perform the above inspection on both LH and RH sides.
Result
Proceed to
OK
NG
OK END (FRONT NO. 2 SPEAKER ASSEMBLY IS DEFECTIVE)
INSPECT REAR SPEAKER ASSEMBLY
Remove the rear speaker assembly.
Inspect the rear speaker assembly.
Result
Proceed to
OK
NG
CHECK HARNESS AND CONNECTOR (SPEAKER CIRCUIT)
*1: for LH Side
*2: for RH Side
Disconnect the M33 stereo component amplifier assembly connector.
Disconnect the J1*1 and/or I1*2 front No. 1 speaker assembly connector.
Disconnect the H2*1 and/or H4*2 front No. 2 speaker assembly connector.
Disconnect the L2*1 and/or K2*2 rear speaker assembly connector.
Disconnect the M34 woofer box speaker assembly connector.
Measure the resistance according to the value(s) in the table below.
Standard Resistance
Table 1. for LH Side Tester Connection
Condition
Specified Condition
M33-14 (FL+) - J1-1
Always
Below 1 Ω
M33-29 (FL-) - J1-2
Always
Below 1 Ω
M33-10 (TWL+) - H2-4 (TWL+)
Always
Below 1 Ω
M33-25 (TWL-) - H2-3 (TWL-)
Always
Below 1 Ω
M33-11 (RL+) - L2-1 (+)
Always
Below 1 Ω
M33-26 (RL-) - L2-2 (-)
Always
Below 1 Ω
M33-14 (FL+) - Body ground
Always
10 kΩ or higher
M33-29 (FL-) - Body ground
Always
10 kΩ or higher
M33-10 (TWL+) - Body ground
Always
10 kΩ or higher
M33-25 (TWL-) - Body ground
Always
10 kΩ or higher
M33-11 (RL+) - Body ground
Always
10 kΩ or higher
M33-26 (RL-) - Body ground
Always
10 kΩ or higher
Table 2. for RH Side Tester Connection
Condition
Specified Condition
M33-9 (FR+) - I1-1
Always
Below 1 Ω
M33-24 (FR-) - I1-2
Always
Below 1 Ω
M33-13 (TWR+) - H4-4 (TWR+)
Always
Below 1 Ω
M33-28 (TWR-) - H4-3 (TWR-)
Always
Below 1 Ω
M33-12 (RR+) - K2-1 (+)
Always
Below 1 Ω
M33-27 (RR-) - K2-2 (-)
Always
Below 1 Ω
M33-9 (FR+) - Body ground
Always
10 kΩ or higher
M33-24 (FR-) - Body ground
Always
10 kΩ or higher
M33-13 (TWR+) - Body ground
Always
10 kΩ or higher
M33-28 (TWR-) - Body ground
Always
10 kΩ or higher
M33-12 (RR+) - Body ground
Always
10 kΩ or higher
M33-27 (RR-) - Body ground
Always
10 kΩ or higher
Table 3. for Woofer Box Speaker Tester Connection
Condition
Specified Condition
M33-15 (WFR+) - M34-4 (WF+)
Always
Below 1 Ω
M33-30 (WFR-) - M34-1 (WF-)
Always
Below 1 Ω
M33-8 (WFL+) - M34-3 (WF+)
Always
Below 1 Ω
M33-23 (WFL-) - M34-2 (WF-)
Always
Below 1 Ω
M33-15 (WFR+) - Body ground
Always
10 kΩ or higher
M33-30 (WFR-) - Body ground
Always
10 kΩ or higher
M33-8 (WFL+) - Body ground
Always
10 kΩ or higher
M33-23 (WFL-) - Body ground
Always
10 kΩ or higher
Result
Proceed to
OK
NG
NG REPAIR OR REPLACE HARNESS OR CONNECTOR
INSPECT FRONT NO. 1 SPEAKER ASSEMBLY
Remove the front No. 1 speaker assembly.
Inspect the front No. 1 speaker assembly.
Result
Proceed to
OK
NG
CHECK FRONT NO. 2 SPEAKER ASSEMBLY
Replace the front No. 2 speaker assembly.
Click here
Clear the DTCs.
Body Electrical > Navigation System > Clear DTCs
Check for DTCs.
Body Electrical > Navigation System > Trouble Codes
Tip:Connect all the connectors to the front No. 2 speaker assemblies that were disconnected.
When there is a possibility that either the right or left speaker is defective, inspect by interchanging the right one with the left one.
Perform the above inspection on both LH and RH sides.
OK
No DTCs are output.
Result
Proceed to
OK
NG
OK END (FRONT NO. 2 SPEAKER ASSEMBLY IS DEFECTIVE)
INSPECT REAR SPEAKER ASSEMBLY
Remove the rear speaker assembly.
Inspect the rear speaker assembly.
Result
Proceed to
OK
NG
INSPECT WOOFER BOX SPEAKER ASSEMBLY
Remove the woofer box speaker assembly.
Inspect the woofer box speaker assembly.
Result
Proceed to
OK
NG
CHECK STEREO COMPONENT AMPLIFIER ASSEMBLY
Replace the stereo component amplifier assembly with a known good one.
Clear the DTCs.
Body Electrical > Navigation System > Clear DTCs
Check for DTCs.
Body Electrical > Navigation System > Trouble Codes
OK
No DTCs are output.
Result
Proceed to
OK
NG
OK END (STEREO COMPONENT AMPLIFIER ASSEMBLY IS DEFECTIVE)