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B1233 In-Car Temperature Sensor Short (Low)

AutoHex Online Help: Hyundai GRANDEUR/AZERA(HG) 2012
Component Location
General Description

The In Car Tenperature Sensor contains a thermistor which measures the temperature of the inside the vehicle. The signal, based on the resistance value, is delivered to the HVAC control unit. This information is used to control the vent output temperature.



DTC Description

DTC B1233 sets if the In-Car Temperature Sensor signal is at or below 0.1V for 0.3 seconds.

DTC Detecting Condition

Item

Detecting Condition

Detecting Condition

DTC Strategy

Voltage check

Short circuit in harness

Faulty incar temp.sensor

Faulty A/C Control Unit

Enable Conditions

Ignition ON

Threshold value

Sensor signal is at or below 0.1V for 0.3 seconds

Failsafe

Substituded In-Car Temp. = 25? (77?)

Specification

? Resistance value of incar temp sensor as a function of temperature.

Temperature(?/?)

Resistance(?)

Temperature(?/?)

Resistance(?)

-20/-4

285.6

20/68

37.4

-10/14

169

30/86

24.1

0/32

97.7

40/104

15.9

10/50

59.67

50/122

10.8

Diagnostic Circuit Diagram