System: Powertrain (P-Code)
SAE Standard (Generic)
Family: Coolant Pump Speed Sensor Circuit
Code P2CCA: Coolant Pump Speed Sensor Circuit Low
Diagnostic & Technical Explanation
Code P2CCA (Coolant Pump Speed Sensor Circuit Low) covers the dedicated tachometer/speed feedback sensor built into an electric coolant pump, distinct from the pump's own control-circuit fault codes, used so the ECM can confirm actual impeller speed matches commanded duty cycle. The ECM flags an open, shorted, out-of-range, or implausible signal. Causes are a failed Hall-effect speed sensor inside the pump housing, a corroded connector, or damaged signal wiring.
First-listed procedure
Rank #1
Inspect coolant pump 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: Coolant Pump 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)