Engine. Toyota Rav4. Aca30, 33, 38 Gsa33 Zsa30, 35
3Zr-Fae 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 the battery temperature.
A thermistor is integrated into the battery temperature sensor, and the resistance of the thermistor 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 temperature 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 reduces the amount of current supplied from the generator in order to protect the battery.
| DTC No. | DTC Detection Condition | Trouble Area |
| P0516 | The battery temperature sensor output value is 0.2 V or less for 0.5 seconds or more with the ignition switch ON (1 trip detection logic). |
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| P0517 | The battery temperature sensor output value is 4.8 V or higher for 0.5 seconds or more with the ignition switch ON (1 trip detection logic). |
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WIRING DIAGRAM
Refer to DTC P1550 (RAV4_ACA30 RM0000010BL02FX_02.html).INSPECTION PROCEDURE
- HINT:
- Read freeze frame data using the intelligent tester. Freeze frame data records the engine condition when malfunctions are detected. When troubleshooting, freeze frame data can help determine if the vehicle was moving or stationary, if the engine was warmed up or not, if the air fuel ratio was lean or rich, and other data from the time the malfunction occurred.
| 1.INSPECT BATTERY CURRENT SENSOR ASSEMBLY |
Disconnect the battery current sensor connector.
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Measure the resistance according to the value(s) in the table below.
- Standard Resistance:
Tester Connection Condition Specified Condition 1 (THB) - 4 (E2) 24 to 26°C (75 to 79°F) 1.91 to 2.065 kΩ
Text in Illustration *1 Component without harness connected
(Battery Current Sensor Assembly)
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| OK | |
| 2.CHECK HARNESS AND CONNECTOR (BATTERY TEMPERATURE SENSOR - ECM) |
Disconnect the battery current sensor connector.
 |
Disconnect the ECM connectors.
Measure the resistance according to the value(s) in the table below.
- Standard Resistance (Check for Open):
Tester Connection Condition Specified Condition B31-1 (THB) - A12-54 (THB) Always Below 1 Ω B31-4 (E2) - B32-68 (EIB) Always Below 1 Ω
- Standard Resistance (Check for Short):
Tester Connection Always Specified Condition B31-1 (THB) or A12-54 (THB) - Body ground Always 10 kΩ or higher
Text in Illustration *1 Front view of wire harness connector
(to Battery Current Sensor Assembly)*2 Front view of wire harness connector
(to ECM)
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| OK | ||
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