P2603
Coolant Pump A Control Circuit High
2017-2020 Tesla Model 3 Standard Range Plus Single Motor RWD
Moderate SeverityPowertrainGeneric (SAE)
Description
High voltage on auxiliary coolant pump circuit.
Symptoms
- Check engine light
- Pump runs constantly
Common Causes
- Open ground
- Short to power
- Control module issue
Diagnostic Steps
- Check ground circuit
- Measure voltage
Repair Notes
Repair wiring or replace pump.
Related Codes
Other Powertrain Codes
- P0070Ambient Air Temperature Sensor Circuit
- P0071Ambient Air Temperature Sensor Range/Performance
- P0072Ambient Air Temperature Sensor Circuit Low
- P0073Ambient Air Temperature Sensor Circuit High
- P0115Engine Coolant Temperature (ECT) Sensor 1 Circuit
- P0116ECT Sensor 1 Circuit Range/Performance
- P0117ECT Sensor 1 Circuit Low Input
- P0118ECT Sensor 1 Circuit High Input
- P0119ECT Sensor 1 Circuit Intermittent
- P0125Insufficient Coolant Temperature for Closed Loop Fuel Control
P2603 on Other Vehicles
Tesla Cybertruck
2024-2024 Cyberbeast Tri Motor AWD
Tesla Cybertruck
2024-2024 Dual Motor AWD
Tesla Cybertruck
2024-2024 Single Motor RWD
Tesla Model 3
2017-2020 Long Range Dual Motor AWD
Tesla Model 3
2017-2020 Performance Dual Motor AWD
Tesla Model 3
2021-2024 Long Range Dual Motor AWD
Tesla Model 3
2021-2024 Performance Dual Motor AWD
Tesla Model 3
2021-2024 Standard Range Single Motor RWD
Common Questions
What does code P2603 mean on a 2017-2020 Tesla Model 3?
P2603 stands for "Coolant Pump A Control Circuit High". High voltage on auxiliary coolant pump circuit.
What are the symptoms of P2603 on a Tesla Model 3?
Common symptoms of P2603 include: Check engine light, Pump runs constantly.
What causes P2603 on a 2017-2020 Tesla Model 3?
Common causes of P2603 include: Open ground, Short to power, Control module issue.