CIRCUIT INSPECTION DTC 38 A T Fluid Temperature Sensor Circuit CIRCUIT DESCRIPTION The fluid temp. sensor converts fluid temp. into resistance values which is input into the ECM. DTC No. | Diagnostic Trouble Code Detection Condition | Trouble Area 38 | Either (a) or (b) are detected for 0.5 sec. or more (a) Temp. sensor resistance less than 79 Ω (b) After the engine has been operating for 15 minutes or more, the resistance at the temp. sensor is more than 156 kΩ | • Harness or connector between A/T fluid temp. sensor and ECM • A/T fluid temp. sensor • ECM WIRING DIAGRAM ECM 4 — 6 V A/T Fluid Temp. Sensor 2 O 24 -Wv- E9 OIL -Wv- 1 BR-B 65 E9 E2 O04346