C 2500 Truck 2WD V8-379 6.2L DSL VIN J FI (1992)
Output Speed Sensor Diagnostic Chart
Test Description:
Number(s) below refer to circled number(s) on the diagnostic chart.
1. Test one checks for a speed signal at the PCM/TCM.
2. Test two checks the output sensor directly.
Diagnostic Aids:
Check all connections, especially at the transmission pass-thru connector. See: Transmission Control Systems/Testing and Inspection/Symptom