ATGE/A340 Automatic Trans (GE) — Circuit Inspection Dtc 38 a T Fluid Temperature Sensor Circuit, page 64

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

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