Dtc P0516 Battery Temperature Sensor Circuit Low

Двигатель. Toyota Rav4. Aca30, 33, 38 Ala30
Система Управления Двигателем 2Ad-Ftv. Toyota Rav4. Aca30, 33, 38 Ala30

DESCRIPTION

WIRING DIAGRAM

INSPECTION PROCEDURE

INSPECT BATTERY CURRENT SENSOR

CHECK WIRE HARNESS (BATTERY CURRENT SENSOR - ECM)

DTC P0516 Battery Temperature Sensor Circuit Low

DTC P0517 Battery Temperature Sensor Circuit High


DESCRIPTION

The battery current sensor is installed on the battery negative terminal to detect battery temperature.
A thermistor is integrated into the battery current sensor, and the resistance of the thermistor in the battery current sensor changes according to the battery temperature.
The resistance of the thermistor in the battery current sensor decreases as the battery temperature increases. The resistance increases as the temperature decreases.
The battery current sensor is connected to the ECM. The ECM supplies 5 V from the THB terminal to the battery current sensor through resistor R.
The battery current sensor and resistor R are connected in series. This results in changes 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 changes of 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.
Toyota Rav4. Aca30, 33, 38 Ala30.Система Управления Двигателем 2Ad-Ftv.Система Ecd. Dtc P0516 Battery Temperature Sensor Circuit Low

DTC No.
DTC Detection Condition
Trouble Area
P0516
Battery current 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)
  1. Battery current sensor
  2. Short in battery current sensor circuit
  3. ECM
P0517
Battery current 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)
  1. Battery current sensor
  2. Open in battery current sensor circuit
  3. ECM

WIRING DIAGRAM


Toyota Rav4. Aca30, 33, 38 Ala30.Система Управления Двигателем 2Ad-Ftv.Система Ecd. Dtc P0516 Battery Temperature Sensor Circuit Low


INSPECTION PROCEDURE

ПРИМЕЧАНИЕ:
After replacing the ECM, the new ECM needs registration (see page RAV4_ACA30 RM000000TJ400AX.html) and initialization (see page RAV4_ACA30 RM000000TIN009X.html).
УКАЗАНИЕ:
If DTCs relating to different systems are output, and they share terminal E2 as their ground, check this ground circuit first.
1.INSPECT BATTERY CURRENT SENSOR


    Toyota Rav4. Aca30, 33, 38 Ala30.Система Управления Двигателем 2Ad-Ftv.Система Ecd. Dtc P0516 Battery Temperature Sensor Circuit Low

  1. Disconnect the B31 battery current sensor connector.

  1. Measure the resistance of the battery current sensor.

    Standard resistance:
    Tester Connection
    		Condition
    		Specified Condition
    B31-1 (THB) - B31-4 (E2)
    		20 to 30°C (68 to 86°F)
    		1.5 to 2.5 kΩ

  1. Reconnect the battery current sensor connector.



NG
REPLACE BATTERY CURRENT
OK


2.CHECK WIRE HARNESS (BATTERY CURRENT SENSOR - ECM)


    Toyota Rav4. Aca30, 33, 38 Ala30.Система Управления Двигателем 2Ad-Ftv.Система Ecd. Dtc P0516 Battery Temperature Sensor Circuit Low

  1. Disconnect the B31 battery current sensor connector.

  1. Disconnect the B32 ECM connector.

  1. Measure the resistance of the wire harness side connectors.

    Standard resistance:
    Tester Connection
    		Specified Condition
    B31-1 (THB) - B32-115 (THB)
    		Below 1 Ω
    B31-4 (E2) - B32-93 (EIB)
    		Below 1 Ω
    B31-1 (THB) or B32-115 (THB) - Body ground
    		10 kΩ or higher
    B31-4 (E2) or B32-93 (EIB) - Body ground
    		10 kΩ or higher

  1. Reconnect the battery current sensor connector.

  1. Reconnect the ECM connector.



NG
REPAIR OR REPLACE HARNESS AND CONNECTOR
OK

REPLACE ECM