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COMPASS AND TEMPERATURE DISPLAY DIAGNOSIS TSB Revision INTERIOR 52A-29 INSPECTION PROCEDURE 4: There is a Discrepancy Between the Actual Outside Temperature and . CIRCUIT OPERATION • A thermistor is used for the thermo sensor. The resistance value fluctuate according to ambient . TECHNICAL DESCRIPTION (COMMENT) . TROUBLESHOOTING HINTS • Malfunction of the outside thermo sensor • Malfunction of the inside rear view mirror (with compass and temperature display) • Damaged harness or connector DIAGNOSIS STEP 1. Check the outside thermo sensor internal (1) Remove the outside thermo sensor . (2) Check the internal resistance of the outside thermo sensor are at the standard values at temperature of 20 °C (68°F) and 40 °C (104°F). Standard value: Approximately 1,200 Ω [at 20°C (68°F)] Approximately 500 Ω [at 40 °C (104°F)] Q: Does the out side thermo sensor resistance meet standard values above? STEP 2. Check harness connector A-22 at the outside Q: Is harness connector A-22 in good condition? YES : Go to Step 6. AC003251 THERMOMETER DRYER SENSOR AB AC2019836 1 2 CONNECTOR: A-22 AB COMPONENT A-22 (BR) |