P1188 Chevrolet Code - Engine Oil Temperature Sensor Circuit High Voltage
Quick Answer
The Powertrain Control Module (PCM) monitors the Engine Oil Temperature Sensor. Common causes include Faulty Engine Oil Temperature Sensor, Engine Oil Temperature Sensor harness is open or shorted, Engine Oil Temperature Sensor circuit poor electrical connection. Severity is High - diagnose this code as soon as possible. Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.
- What it means
- P1188 Chevrolet indicates Engine Oil Temperature Sensor Circuit High Voltage.
- Common causes
- Common causes include Faulty Engine Oil Temperature Sensor, Engine Oil Temperature Sensor harness is open or shorted, Engine Oil Temperature Sensor circuit poor electrical connection.
- Severity
- High - diagnose this code as soon as possible.
- Can I drive?
- Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.
Code P1188 Chevrolet Description
What are the Possible Causes of the DTC P1188 Chevrolet?
- Faulty Engine Oil Temperature Sensor
- Engine Oil Temperature Sensor harness is open or shorted
- Engine Oil Temperature Sensor circuit poor electrical connection
How to Fix the DTC P1188 Chevrolet?
Review the 'Possible Causes' above and visually examine the corresponding wiring harness and connectors. Check for damaged components and inspect connector pins for signs of being broken, bent, pushed out, or corroded.
What is the Cost to Diagnose the Code?
Labor: 1.0
To diagnose the P1188 Chevrolet code, it typically requires 1.0 hour of labor. Rates vary by location, vehicle, and shop. Many shops charge between $80–$150 per hour; dealerships and metro areas may be higher, independents may be lower.
Need more information about the P1188 Chevrolet code?
Need more information on how to fix the P1188 Chevrolet code? Get Access to Factory Service Manuals
Need Help with the Code?
Get the P1188 Chevrolet code diagnosed by a professional: Find a repair shop in your area
Frequently Asked Questions about P1188 Chevrolet Code
1. What does the OBDII code P1188 mean for a Chevrolet?
P1188 indicates a high voltage issue in the engine oil temperature sensor circuit, meaning the sensor is sending an abnormal signal to the engine control module (ECM).
2. What are the common symptoms of code P1188?
Symptoms may include an illuminated check engine light, erratic oil temperature readings, reduced engine performance, and potential overheating or lubrication issues.
3. What causes code P1188 on a Chevrolet?
Common causes include a faulty engine oil temperature sensor, damaged wiring or connectors in the sensor circuit, or an issue with the ECM.
4. Can driving with code P1188 damage my engine?
Yes, driving with code P1188 can lead to improper oil temperature regulation, which may cause engine wear or overheating over time.
5. How do you diagnose code P1188 on a Chevrolet?
Diagnosing involves checking the engine oil temperature sensor, inspecting wiring and connectors for damage, and testing the voltage signal to confirm if it’s out of range.
6. How is code P1188 fixed on a Chevrolet?
Repairs may include replacing the engine oil temperature sensor, repairing or replacing damaged wiring or connectors, or reprogramming/updating the ECM.
7. How much does it cost to fix code P1188?
Costs can vary but typically range from $50 to $150 for the sensor replacement, plus labor if needed, depending on the vehicle model and repair shop.
8. Can code P1188 be caused by dirty or low engine oil?
While uncommon, dirty or low oil can indirectly affect sensor readings. However, the primary cause is usually electrical or sensor-related.
9. Where is the engine oil temperature sensor located on a Chevrolet?
The engine oil temperature sensor is typically located near the oil pan or in the engine block, depending on the Chevrolet model.
10. Do I need special tools to repair code P1188?
Basic tools like a multimeter and socket set are typically sufficient for diagnosing and replacing the engine oil temperature sensor.
Discuss the causes and fixes for P1188 Chevrolet OBDII Code
Code P1188 Chevrolet comments
No comments found for this page.
Fix Your Car Smarter
Try the New AutoCodes App!
Get complete OBDII diagnostics, repair solutions, and cost estimates, plus AI chat support on demand.
