DESCRIPTION
If there is a short in a speaker circuit, the radio receiver assembly detects it and stops output to the speakers.
Thus sound cannot be heard from the speakers even if there is no malfunction in the radio receiver assembly or speakers.
WIRING DIAGRAM
PROCEDURE
1. |
CHECK HARNESS AND CONNECTOR (RADIO RECEIVER ASSEMBLY - SPEAKERS) |
(a) Disconnect the F48 and F49 radio receiver assembly connectors.
(b) Disconnect the I1 and J1 front No. 1 speaker assembly connectors.
(c) Disconnect the F85 and F86 front No. 2 speaker assembly connectors.
(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 |
---|---|---|
F48-1 (FR+) - F85-4 (TWR+) |
Always |
Below 1 Ω |
F48-5 (FR-) - F85-2 (TWR-) |
Always |
Below 1 Ω |
F85-3 (+) - I1-1 |
Always |
Below 1 Ω |
F85-1 (-) - I1-2 |
Always |
Below 1 Ω |
F48-2 (FL+) - F86-4 (TWL+) |
Always |
Below 1 Ω |
F48-6 (FL-) - F86-2 (TWL-) |
Always |
Below 1 Ω |
F86-3 (+) - J1-1 |
Always |
Below 1 Ω |
F86-1 (-) - J1-2 |
Always |
Below 1 Ω |
F49-1 (RR+) - K4-1 |
Always |
Below 1 Ω |
F49-3 (RR-) - K4-2 |
Always |
Below 1 Ω |
F49-2 (RL+) - L4-1 |
Always |
Below 1 Ω |
F49-6 (RL-) - L4-2 |
Always |
Below 1 Ω |
F48-1 (FR+) or F85-4 (TWR+) - Body ground |
Always |
10 kΩ or higher |
F48-5 (FR-) or F85-2 (TWR-) - Body ground |
Always |
10 kΩ or higher |
F85-3 (+) or I1-1 - Body ground |
Always |
10 kΩ or higher |
F85-1 (-) or I1-2 - Body ground |
Always |
10 kΩ or higher |
F48-2 (FL+) or F86-4 (TWL+) - Body ground |
Always |
10 kΩ or higher |
F48-6 (FL-) or F86-2 (TWL-) - 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 |
F49-1 (RR+) or K4-1 - Body ground |
Always |
10 kΩ or higher |
F49-3 (RR-) or K4-2 - Body ground |
Always |
10 kΩ or higher |
F49-2 (RL+) or L4-1 - Body ground |
Always |
10 kΩ or higher |
F49-6 (RL-) or L4-2 - Body ground |
Always |
10 kΩ or higher |
NG | ![]() |
REPAIR OR REPLACE HARNESS OR CONNECTOR |
|
2. |
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 |
|
3. |
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
NG | ![]() |
REPLACE FRONT NO. 2 SPEAKER ASSEMBLY |
|
4. |
REPLACE FRONT NO. 2 SPEAKER ASSEMBLY |
(a) Check that the malfunction disappears when a known good speaker is installed.
Click here
OK:
Malfunction disappears.
HINT:
OK | ![]() |
END (FRONT NO. 2 SPEAKER ASSEMBLY WAS DEFECTIVE) |
|
5. |
INSPECT REAR SPEAKER ASSEMBLY |
(a) Remove the rear speaker assembly.
Click here
(b) Inspect the rear speaker assembly.
Click here
OK | ![]() |
PROCEED TO NEXT SUSPECTED AREA SHOWN IN PROBLEM SYMPTOMS TABLE |
NG | ![]() |
REPLACE REAR SPEAKER ASSEMBLY |
Toyota CH-R Service Manual > Safety Connect System: Telematics Transceiver Malfunction (B15A8)
DESCRIPTION
This DTC is set when an error in the EEPROM or PLL IC is detected on the DCM
(Telematics Transceiver) self-check. The EEPROM (Electrically Erasable Programmable
Read-Only Memory) stores the various data to operate the safety connect system.
The PLL IC (Phase-Locked Loop Integrated ...
Toyota CH-R Service Manual > Vehicle Stability Control System: Master Cylinder Pressure Sensor Malfunction (C1246)
DESCRIPTION
The master cylinder pressure sensor is connected to the skid control ECU in the
brake actuator assembly.
DTC No.
Detection Item
DTC Detection Condition
Trouble Area
C1246
Master Cylinder Pressure Sensor Malfunc ...