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HA -134 HEATING, VENTILATION AND AIR CONDITIONING DTC B1237 AMBIENT TEMPERATURE SENSOR SHORT (LOW) COMPONENT LOCATION ED485BBE Ambient Temp. Sensor SCMHA6703L GENERAL DESCRIPTION E2ABCF83 The ambient temperature senor located at the center stay of the condenser, detects ambient air temperature. It is a nega- DTC DESCRIPTION EF007347 The A/C controller sets DTC B1237 if there is a short circuit in ambient temp. sensor signal harness or the measured DTC DETECTING CONDITION E76C2039 Item Detecting Condition Possible cause DTC Strategy • Resistance check Threshold value • < 7.48kΩ Detecting time • 0.3 sec FAIL SAFE • Control with the value of 20 C(68 F) • Short circuit in harness SPECIFICATION EA51C1AC Temperature[ C( F)] Resistance(kΩ ) Temperature[ C( F)] Resistance(kΩ ) -30(-22) 527.99 25(77) 30 -15(5) 218.21 35(95) 19.6 0(32) 97.83 50(122) 10.82 15(59) 47.12 60(140) 7.48 |