Body Electrical. Toyota Rav4. Aca30, 33, 38 Gsa33 Zsa30, 35
Navigation. Toyota Rav4. Aca30, 33, 38 Gsa33 Zsa30, 35
CHECK VEHICLE SENSOR (OPERATION CHECK)
DTC B15C2 Speed Signal Malfunction |
DESCRIPTION
Navigation function:The navigation receiver assembly receives a vehicle speed signal from the combination meter assembly and vehicle speed information from the navigation antenna, and then adjusts vehicle position.
The navigation receiver assembly stores this DTC when the difference between the speed information that the navigation antenna receives and the SPD pulse received from the combination meter assembly becomes large.
ASL function:
The circuit is necessary for the ASL (Automatic Sound Levelizer) built into the navigation receiver. Speed signals are received from the combination meter and used for the ASL. The ASL function automatically adjusts the sound volume in order to maintain clear audio sound even when vehicle noise increases (as vehicle noise increases, the volume is turned up, etc.).
- HINT:
- A voltage of 12 V or 5 V is output from each ECU connected to the combination meter, and then input to the combination meter assembly. The signal is changed to a pulse signal at the transistor in the combination meter assembly. Each ECU controls its respective systems based on the pulse signal.
- If a short occurs in any of the ECUs or in the wire harness connected to an ECU, all systems in the diagram below will not operate normally.
| DTC Code | DTC Detection Condition | Trouble Area |
| B15C2 | A difference between the GPS speed and SPD pulse is detected. |
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WIRING DIAGRAM
INSPECTION PROCEDURE
| 1.CHECK VEHICLE SENSOR (OPERATION CHECK) |
Enter the "GPS&Vehicle Sensor" (Vehicle Sensors) check (RAV4_ACA30 RM000003A3N00MX.html).
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While driving the vehicle, compare the "SPD" indicator to the reading on the speedometer. Check if these readings are equal or almost equal.
- OK:
- The readings are equal or almost equal.
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| OK | ||
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