P0598 on Chevrolet
Thermostat Heater Control Circuit Low
P0598 on Chevrolet vehicles indicates thermostat heater control circuit low. Au7o has documented this code across 1 Chevrolet model — most commonly on Camaro. This code applies to engines with an electronically controlled (heated) thermostat and means the Powertrain Control Module detected an abnormally low voltage in the thermostat heater control circuit. The heater element lets the computer fine-tune coolant temperature for efficiency and emissions by opening the thermostat sooner under certain conditions. P0598 sets when the control or feedback circuit reads lower than expected (often a short to ground or loss of supply). It is found mainly on certain European makes (BMW, Mercedes, VW/Audi, etc.) and usually has little effect on driving. Typical repair costs on Chevrolet range from $150 to $1,800, depending on the specific model and root cause.
Common Causes of P0598
- •Faulty electronically controlled (map-controlled) thermostat
- •Short to ground in the heater control wiring
- •Corroded or loose thermostat connector
- •Open or damaged wiring in the control circuit
- •Low coolant level overheating the thermostat heater
- •Blown fuse or poor power supply to the circuit
- •Faulty PCM control driver
P0598 on Chevrolet by Model
Chevrolet Camaro(1 issue)
- Cooling System Problems and Engine Overheating2016-2023
Camaro owners report persistent overheating issues, particularly at idle, caused by cooling fan failures, faulty fan relays, clogged radiators, failing water pumps, and thermostat problems. Temperatures reaching 240-250°F have been reported.
Looking for P0598 on a different make?
View P0598 across all makes →Frequently Asked Questions
What does P0598 mean on Chevrolet?▼
P0598 stands for "Thermostat Heater Control Circuit Low." This code applies to engines with an electronically controlled (heated) thermostat and means the Powertrain Control Module detected an abnormally low voltage in the thermostat heater control circuit. The heater element lets the computer fine-tune coolant temperature for efficiency and emissions by opening the thermostat sooner under certain conditions. P0598 sets when the control or feedback circuit reads lower than expected (often a short to ground or loss of supply). It is found mainly on certain European makes (BMW, Mercedes, VW/Audi, etc.) and usually has little effect on driving. On Chevrolet specifically, this code is documented across 1 model.
What causes P0598 on Chevrolet vehicles?▼
Common causes on Chevrolet: Faulty electronically controlled (map-controlled) thermostat, Short to ground in the heater control wiring, Corroded or loose thermostat connector, Open or damaged wiring in the control circuit, Low coolant level overheating the thermostat heater. Specific causes vary by model and year — see the per-model sections below.
How much does it cost to fix P0598 on a Chevrolet?▼
Repair costs on Chevrolet range from $150 to $1,800, depending on the specific model and root cause.
Which Chevrolet models have P0598 documented?▼
Au7o has documented P0598 on 1 Chevrolet model: Camaro.