Last Modified: 01-30-2024 |
6.11:8.1.0 |
Doc ID: RM100000001H4J4 |
Model Year Start: 2019 |
Model: RAV4 |
Prod Date Range: [02/2019 - 06/2020] |
Title: A25A-FXS (ENGINE CONTROL): SFI SYSTEM (w/ Canister Pump Module): P00B111; Radiator Coolant Temperature Sensor Circuit Short to Ground; 2019 - 2020 MY RAV4 RAV4 HV [02/2019 - 06/2020] |
DTC
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P00B111
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Radiator Coolant Temperature Sensor Circuit Short to Ground
|
DESCRIPTION
The No. 2 engine coolant temperature sensor is installed to the radiator pipe between the engine and radiator and monitors the thermostat operation.
The structure of the thermistor used in the No. 2 engine coolant temperature sensor and its connection to the ECM are the same as those of the intake air temperature sensor.
Refer to DTC P011011.
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DTC No.
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Detection Item
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DTC Detection Condition
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Trouble Area
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MIL
|
Memory
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Note
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P00B111
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Radiator Coolant Temperature Sensor Circuit Short to Ground
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The No. 2 engine coolant temperature sensor output voltage is less than 0.081 V for 3 seconds or more (1 trip detection logic).
|
-
Short in No. 2 engine coolant temperature sensor circuit
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No. 2 engine coolant temperature sensor
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ECM
|
Comes on
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DTC stored
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SAE Code: P00B3
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HINT:
When this DTC is output, check the No. 2 engine coolant temperature in the Data List. Enter the following menus: Powertrain / Engine / Data List / Radiator Coolant Temperature.
DTC No.
|
Radiator Coolant Temperature
|
Malfunction
|
P00B111
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Higher than 135°C (275°F)
|
Short to ground in THTW circuit
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If the Data List values are normal, it may be due to a temporary recovery from the malfunction condition. Check for intermittent problems.
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MONITOR DESCRIPTION
The No. 2 engine coolant temperature sensor is used to monitor the engine coolant temperature. The No. 2 engine coolant temperature sensor has a thermistor with a resistance that varies according to the temperature of the engine coolant. When the engine coolant temperature is low, the resistance in the thermistor increases. When the temperature is high, the resistance decreases. These variations in resistance are reflected in the output voltage from the sensor. The ECM monitors the sensor voltage and uses this value to calculate the engine coolant temperature. If the No. 2 engine coolant temperature sensor output voltage deviates from the normal operating range, the ECM interprets this as a malfunction of the No. 2 engine coolant temperature sensor circuit, illuminates the MIL and stores a DTC.
Example:
If the No. 2 engine coolant temperature sensor output voltage is less than 0.081 V for 3 seconds or more, the ECM store this DTC.
MONITOR STRATEGY
Related DTCs
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P00B3: No. 2 engine coolant temperature sensor range check (low voltage)
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Required Sensors/Components (Main)
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No. 2 engine coolant temperature sensor
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Required Sensors/Components (Related)
|
-
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Frequency of Operation
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Continuous
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Duration
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3 seconds
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MIL Operation
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Immediate
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Sequence of Operation
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None
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TYPICAL ENABLING CONDITIONS
Monitor runs whenever the following DTCs are not stored
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None
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Both of the following conditions are met
|
-
|
Auxiliary battery voltage
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8 V or higher
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Ignition switch
|
On
|
TYPICAL MALFUNCTION THRESHOLDS
No. 2 engine coolant temperature sensor voltage [Engine coolant temperature]
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Less than 0.081 V [Higher than 163°C (325°F)]
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CONFIRMATION DRIVING PATTERN
HINT:
-
After repair has been completed, clear the DTC and then check that the vehicle has returned to normal by performing the following All Readiness check procedure.
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When clearing the permanent DTCs, refer to the "CLEAR PERMANENT DTC" procedure.
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Connect the Techstream to the DLC3.
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Turn the ignition switch to ON.
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Turn the Techstream on.
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Clear the DTCs (even if no DTCs are stored, perform the clear DTC procedure).
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Turn the ignition switch off and wait for at least 30 seconds.
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Turn the ignition switch to ON [A].
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Turn the Techstream on.
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Wait 3 seconds or more [B].
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Enter the following menus: Powertrain / Engine / Trouble Codes [C].
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Read the pending DTCs.
HINT:
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If a pending DTC is output, the system is malfunctioning.
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If a pending DTC is not output, perform the following procedure.
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Enter the following menus: Powertrain / Engine / Utility / All Readiness.
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Input the DTC: P00B111.
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Check the DTC judgment result.
Techstream Display
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Description
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NORMAL
|
-
DTC judgment completed
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System normal
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ABNORMAL
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-
DTC judgment completed
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System abnormal
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INCOMPLETE
|
-
DTC judgment not completed
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Perform driving pattern after confirming DTC enabling conditions
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WIRING DIAGRAM
CAUTION / NOTICE / HINT
HINT:
Read freeze frame data using the Techstream. The ECM records vehicle and driving condition information as freeze frame data the moment a DTC is stored. 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.
PROCEDURE
1.
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READ VALUE USING TECHSTREAM (CHECK FOR SHORT IN WIRE HARNESS)
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*1
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No. 2 Engine Coolant Temperature Sensor
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*2
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ECM
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(a) Disconnect the No. 2 engine coolant temperature sensor connector.
(b) Connect the Techstream to the DLC3.
(c) Turn the ignition switch to ON.
(d) Turn the Techstream on.
(e) Enter the following menus: Powertrain / Engine / Data List / Radiator Coolant Temperature.
Powertrain > Engine > Data List
Tester Display
|
Radiator Coolant Temperature
|
(f) According to the display on the Techstream, read the Data List.
OK:
Techstream Display
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Specified Condition
|
Radiator Coolant Temperature
|
-40°C (-40°F)
|
NG
|
|
|
2.
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CHECK HARNESS AND CONNECTOR (NO. 2 ENGINE COOLANT TEMPERATURE SENSOR - ECM)
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(a) Disconnect the No. 2 engine coolant temperature sensor connector.
(b) Disconnect the ECM connector.
(c) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
Tester Connection
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Condition
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Specified Condition
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A38-2 or C45-129 (THTW) - Body ground and other terminals
|
Always
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10 kΩ or higher
|
NG |
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REPAIR OR REPLACE HARNESS OR CONNECTOR
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|