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RSV4 Factory a-PRC
Engine temperature sensor
Function
It tells the engine temperature to the control unit to
improve its performance and to calculate the en-
gine friction for a better estimation of the generated
torque.
Operation / operating principle
NTC type sensor (resistance sensor, inversely
variable with temperature).
Level in wiring diagram:
Temperature sensors
Location:
•
on the vehicle: right side next to the two
heads.
•
connector: on the sensor.
Electrical characteristics:
•
Resistance at 25°: 2.05 kΩ ± 100 Ω
•
Resistance at 60°: 575 kΩ ± 15 Ω
•
Resistance at 90°: 230 kΩ ± 5 Ω
Pin out:
1. B1 yellow/brown : 0-5 V signal
2. B2 green/black: Ground connection
DIAGNOSIS INSTRUMENT: PARAMETERS
Engine temperature:
•
Example value with key ON: 25° C
•
Example value with engine on: 75° C
•
In case of recovery, this value is set by the control unit: if there is a malfunction after engine
start-up, temperature decreases up to approximately 75°.
Engine temperature pre Recovery:
•
Example value with key ON: -40° C
•
Example value with engine on: -40° C
•
Value drawn from the signal read without taking into account any recovery: the value in the
example refers to an open circuit.
Engine temperature at start-up:
•
Example value with key ON: -40° C
Electrical system
ELE SYS - 181
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