Engine. Toyota Rav4. Aca30, 33, 38 Gsa33 Zsa30, 35
2Az-Fe Engine Control System. Toyota Rav4. Aca30, 33, 38 Gsa33 Zsa30, 35
INSPECT BATTERY CURRENT SENSOR ASSEMBLY
CHECK HARNESS AND CONNECTOR (BATTERY TEMPERATURE SENSOR - ECM)
DTC P0516 Battery Temperature Sensor Circuit Low |
DTC P0517 Battery Temperature Sensor Circuit High |
DESCRIPTION
The battery temperature sensor installed on the battery current sensor detects battery temperature.
A thermistor is integrated into the battery temperature sensor, and the resistance in the battery temperature sensor changes according to the battery temperature.
The resistance of the thermistor in the battery temperature sensor decreases as the battery temperature increases. The resistance increases as the temperature decreases.
The battery temperature sensor is connected to the ECM. The ECM supplies 5 V from the THB terminal to the battery temperature sensor through resistor R.
The battery thermometer sensor and resistor R are connected in series. This results in fluctuations in the voltage supplied from the THB terminal when the resistance changes according to the battery temperature.
The ECM determines the battery temperature according to fluctuations in voltage. When the battery temperature is high, the ECM determines to reduce the amount of current supplied from the generator in order to protect the battery.
| DTC No. | DTC Detection Condition | Trouble Area |
| P0516 | Battery temperature sensor output value is 0.2 V or less for 0.5 seconds or more with the ignition switch on (IG) (1 trip detection logic) |
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| P0517 | Battery temperature sensor output value is 4.8 V or more for 0.5 seconds or more with the ignition switch on (IG) (1 trip detection logic) |
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WIRING DIAGRAM
Refer to DTC P1550 (RAV4_ACA30 RM0000010BL01ZX_02.html).INSPECTION PROCEDURE
| 1.INSPECT BATTERY CURRENT SENSOR ASSEMBLY |
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Disconnect the B31 battery current sensor connector.
Measure the resistance.
- Standard resistance:
Tester Connection Condition Specified Condition THB (1) - E2 (4) 24 to 26°C (75 to 79°F) 1.91 to 2.065 kΩ
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| OK | |
| 2.CHECK HARNESS AND CONNECTOR (BATTERY TEMPERATURE SENSOR - ECM) |
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Check the harness and the connectors between the ECM and the battery current sensor.
Disconnect the B31 battery current sensor connector.
Disconnect the B32 ECM connectors.
Measure the resistance of the wire harness side connectors.
- Standard resistance (Check for open):
Tester Connection Specified Condition THB (B31-1) - THB (B32-120) Below 1 Ω E2 (B31-4) - EIB (B32-92) Below 1 Ω
- Standard resistance (Check for short):
Tester Connection Specified Condition THB (B31-1) or THB (B32-120) - Body ground 10 kΩ or higher
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| OK | ||
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