Control Solenoid Valve and Transmission Control Module Assembly Output Shaft Speed Input Test

Control Solenoid Valve and Transmission Control Module Assembly Output Shaft Speed Input Test

Special Tools

J 38522 - Variable Signal Generator

For equivalent regional tools, refer to Special Tools Tools and Equipment.





The purpose of this test is to provide a simulated output speed sensor signal to the control solenoid valve assembly.

Circuit/System Testing

1. Disconnect the wiring harness connector from the B14A Automatic Transmission Output Shaft Speed Sensor.

2. Connect the red lead of J 38522 - generator to the OSS voltage circuit terminal A and the black lead to the OSS signal circuit terminal B.

1. Adjust the J 38522 - generator Signal to 8 volts, the Frequency to 120 and the Percent Duty Cycle to 50.

2. Ignition ON, verify the Transmission OSS parameter display is 100-400 RPM.

If the reading is not within the specified range, test the output speed sensor circuits for a short to voltage, open/high resistance, or short to ground. If the circuits test normal, replace the Q8 control solenoid valve assembly.

If the reading is within the specified range, replace B14A Automatic Transmission Output Shaft Speed Sensor.

Repair Instructions

Perform the Diagnostic Repair Verification Verification Tests after completing the diagnostic procedure.

* Output Speed Sensor Replacement Service and Repair for Automatic Transmission Output Shaft Speed Sensor.

* Control Module References Control Module References for Control Solenoid Valve Assembly replacement, programming and setup.