System: Powertrain (P-Code)
SAE Standard (Generic)
Family: Output Shaft Speed Sensor Circuit
Code P0720: Output Shaft Speed Sensor Circuit
Diagnostic & Technical Explanation
Code P0720 (Output Shaft Speed Sensor Circuit) sets when the TCM loses, receives an implausible, or loses direction information from the transmission output shaft speed sensor used for shift scheduling and vehicle speed cross-check. Causes are a damaged reluctor wheel, debris at the sensor tip, a corroded connector, or chafed internal transmission wiring.
First-listed procedure
Rank #1
Inspect output shaft speed sensor connector
Easy DIY
This is the first procedure in the authored
consideration order, not a measured cause likelihood. Execute it only when its prerequisites
and diagnostic findings support it. Its cost and labor estimates (where known), the step-by-step procedure and the
remaining 2 procedure(s) are in the licensed dataset. Ordering context.
Full family: Output Shaft Speed Sensor Circuit
What this page does not show
This page publishes the fault mechanism and the code index. The licensed dataset adds, for
every one of the 15,886 codes, the full authored repair set (56,729 procedures in total)
with the fields deliberately withheld here:
- Procedures 2..n after the first-listed procedure
- Aftermarket parts cost ranges in USD (
est_parts_cost_min/max_usd)
- Professional labor-hour estimates (
est_labor_hours)
- Step-by-step diagnostic and repair instructions
- Replacement-part mappings and catalog lookups
- 6,637 manufacturer-specific OEM codes across 32 makes ($149 tier)