Diagnostic Aids
Diagnostic test checks for input speed sensor circuit fault. If engine is running and vehicle is moving above 7 MPH, input speed must be more than zero. Inspect wiring for poor connections at PCM and at transaxle 20-pin connector. Check for bent, backed out, deformed or damaged terminals. Check for weak terminal tension. Check for chafed wire that could short to bare metal or other wiring. Inspect for broken wire inside insulation. If diagnosing for intermittent short or open condition, move wiring harness while observing scan tool for value change.