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
CAUTION / NOTICE / HINT
NOTICE:
Click here
PROCEDURE
1. |
CHECK HARNESS AND CONNECTOR (RADIO AND DISPLAY RECEIVER ASSEMBLY, DCM (TELEMATICS TRANSCEIVER) OR SPEAKERS - BODY GROUND) |
(a) Disconnect the F132 radio and display receiver assembly connector.
(b) Disconnect the F86 front No. 2 speaker assembly connector.
(c) Disconnect the F134 DCM (telematics transceiver) connector.
(d) Disconnect the K4 and L4 rear speaker assembly connectors.
(e) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
Tester Connection |
Condition |
Specified Condition |
---|---|---|
F132-1 (FR+) or F134-2 (SPI+) - Body ground |
Always |
10 kΩ or higher |
F132-6 (FR-) or F134-3 (SPI-) - Body ground |
Always |
10 kΩ or higher |
F132-2 (FL+) or F86-4 (TWL+) - Body ground |
Always |
10 kΩ or higher |
F132-7 (FL-) or F86-2 (TWL-) - Body ground |
Always |
10 kΩ or higher |
F132-4 (RR+) or K4-1 - Body ground |
Always |
10 kΩ or higher |
F132-9 (RR-) or K4-2 - Body ground |
Always |
10 kΩ or higher |
F132-3 (RL+) or L4-1 - Body ground |
Always |
10 kΩ or higher |
F132-8 (RL-) or L4-2 - Body ground |
Always |
10 kΩ or higher |
NG | ![]() |
REPAIR OR REPLACE HARNESS OR CONNECTOR |
|
2. |
CHECK HARNESS AND CONNECTOR (FRONT NO. 2 SPEAKER ASSEMBLY RH OR DCM (TELEMATICS TRANSCEIVER) - BODY GROUND) |
(a) Disconnect the F85 front No. 2 speaker assembly RH connector.
(b) Disconnect the F134 DCM (telematics transceiver) connector.
(c) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
Tester Connection |
Condition |
Specified Condition |
---|---|---|
F85-4 (TWR+) or F134-5 (SPO+) - Body ground |
Always |
10 kΩ or higher |
F85-2 (TWR-) or F134-6 (SPO-) - Body ground |
Always |
10 kΩ or higher |
NG | ![]() |
REPAIR OR REPLACE HARNESS OR CONNECTOR |
|
3. |
INSPECT DCM (TELEMATICS TRANSCEIVER) |
(a) Remove the DCM (telematics transceiver).
Click here
(b) Measure the resistance according to the value(s) in the table below. Standard Resistance:
|
|
NG | ![]() |
REPLACE DCM (TELEMATICS TRANSCEIVER) |
|
4. |
CHECK HARNESS AND CONNECTOR (FRONT NO. 1 SPEAKER ASSEMBLY OR FRONT NO. 2 SPEAKER ASSEMBLY - BODY GROUND) |
(a) Disconnect the I1 and J1 front No. 1 speaker assembly connectors.
(b) Disconnect the F85 and F86 front No. 2 speaker assembly connectors.
(c) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
Tester Connection |
Condition |
Specified Condition |
---|---|---|
F85-3 (+) or I1-1 - Body ground |
Always |
10 kΩ or higher |
F85-1 (-) or I1-2 - Body ground |
Always |
10 kΩ or higher |
F86-3 (+) or J1-1 - Body ground |
Always |
10 kΩ or higher |
F86-1 (-) or J1-2 - Body ground |
Always |
10 kΩ or higher |
NG | ![]() |
REPAIR OR REPLACE HARNESS OR CONNECTOR |
|
5. |
INSPECT FRONT NO. 1 SPEAKER ASSEMBLY |
(a) Remove the front No. 1 speaker assembly.
Click here
(b) Inspect the front No. 1 speaker assembly.
Click here
NG | ![]() |
REPLACE FRONT NO. 1 SPEAKER ASSEMBLY |
|
6. |
INSPECT FRONT NO. 2 SPEAKER ASSEMBLY |
(a) Remove the front No. 2 speaker assembly.
Click here
(b) Inspect the front No. 2 speaker assembly.
Click here
(c) Clear the DTCs.
Click here
(d) Recheck for DTCs and check that no DTCs are output.
Body Electrical > Navigation System > Trouble CodesOK:
No DTCs are output.
OK | ![]() |
END |
|
7. |
INSPECT REAR SPEAKER ASSEMBLY |
(a) Remove the rear speaker assembly.
Click here
(b) Inspect the rear speaker assembly.
Click here
OK | ![]() |
REPLACE RADIO AND DISPLAY RECEIVER ASSEMBLY |
NG | ![]() |
REPLACE REAR SPEAKER ASSEMBLY |
Toyota CH-R Service Manual > Occupant Classification System: Rear Occupant Classification Sensor LH Circuit Malfunction (B1782)
DESCRIPTION
The rear occupant classification sensor LH circuit consists of the occupant detection
ECU and rear in weight detection sensor sub-assembly.
DTC B1782 is stored when a malfunction is detected in the rear in weight detection
sensor sub-assembly circuit.
DTC No.
...
Toyota CH-R Service Manual > Window Defogger System: Data List / Active Test
DATA LIST / ACTIVE TEST
ACTIVE TEST
HINT:
Using the Techstream to perform Active Tests allows relays, VSVs, actuators and
other items to be operated without removing any parts. This non-intrusive functional
inspection can be very useful because intermittent operation may be discovered before ...