Toyota Corolla Cross: There is No Sound Made
DESCRIPTION
Based on signals received from each ECU, the vehicle approaching speaker controller outputs warning sounds through the vehicle approaching speaker assembly.
WIRING DIAGRAM
CAUTION / NOTICE / HINT
NOTICE:
- Inspect the fuses for circuits related to this system before performing the following procedure.
- The acoustic vehicle alerting system uses the CAN communication system. Inspect the communication functions by following How to Proceed with Troubleshooting.
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PROCEDURE
|
1. | CHECK FOR DTC |
(a) Check for DTCs.
Body Electrical > Acoustic Vehicle Alerting System > Trouble Codes|
Result | Proceed to |
|---|---|
|
B135013 and B135019 are not output |
A |
| B135013 and B135019 is output |
B |
| B |
.gif) | GO TO DTC CHART |
|
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| 2. |
PERFORM ACTIVE TEST USING GTS |
(a) Perform the Active Test according to the display on the GTS.
Body Electrical > Acoustic Vehicle Alerting System > Active Test|
Tester Display | Measurement Item |
Control Range | Diagnostic Note |
|---|---|---|---|
|
Proximity Sound (20km/h,12MPH) |
20 km/h (12 mph) vehicle proximity warning sound |
OFF or ON | - |
|
Tester Display |
|---|
| Proximity Sound (20km/h,12MPH) |
|
Result | Proceed to |
|---|---|
|
The warning sound is produced |
A |
| The warning sound is not produced |
B |
| A |
| REPLACE VEHICLE APPROACHING SPEAKER CONTROLLER |
|
| 3. |
CHECK HARNESS AND CONNECTOR (VEHICLE APPROACHING SPEAKER CONTROLLER - POWER SOURCE AND BODY GROUND) |
(a) Disconnect the I256 vehicle approaching speaker controller connector.
(b) Measure the voltage according to the value(s) in the table below.
Standard Voltage:
|
Tester Connection | Condition |
Specified Condition |
|---|---|---|
|
I256-7 (+B) - Body ground |
Ignition switch off | 11 to 14 V |
(c) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
|
Tester Connection | Condition |
Specified Condition |
|---|---|---|
|
I256-12 (GND) - Body ground |
Always | Below 1 Ω |
| OK | | REPLACE VEHICLE APPROACHING SPEAKER CONTROLLER |
| NG | | REPAIR OR REPLACE HARNESS OR CONNECTOR |
READ NEXT:
Removal
REMOVAL CAUTION / NOTICE / HINT COMPONENTS (REMOVAL)
Procedure Part Name Code
1 FRONT BUMPER ASSEMBLY
- -
- -
2 LOWER NO. 2 FRONT BUMPER RETAINE
Inspection
INSPECTION PROCEDURE 1. INSPECT VEHICLE APPROACHING SPEAKER ASSEMBLY
(a) Check the resistance.
(1) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
SEE MORE:
Removal
REMOVAL CAUTION / NOTICE / HINT COMPONENTS (REMOVAL)
Procedure Part Name Code
1 REAR SUSPENSION MEMBER SUB-ASSEMBLY
51206A -
- -
2 NO. 2 FUEL TANK VENT HOSE SUB-ASSEMBLY
77404B
- -
3 FUEL TANK VENT HOSE
Drive Motor "B" Control Module Unexpected Operation (P0A1C94)
DTC SUMMARY MALFUNCTION DESCRIPTION The hybrid vehicle control ECU monitors the motor generator control ECU (MG ECU).
The cause of this malfunction may be the following: Motor generator control ECU (MG ECU) internal malfunction
Motor generator control ECU (MG ECU) malfunction
DESCRIPT
