P1602 Buick Code - Knock Sensor Module Performance Conditions
Quick Answer
With the engine running and Engine Coolant Temperature (ECT) sensor input more than 104°F, the Powertrain Control Module (PCM) detects a fault in the internal Knock Sensor module or its circuit Common causes include Faulty Knock Sensor Module, Knock Sensor Module harness is open or shorted, Knock Sensor Module 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
- P1602 Buick indicates Knock Sensor Module Performance Conditions.
- Common causes
- Common causes include Faulty Knock Sensor Module, Knock Sensor Module harness is open or shorted, Knock Sensor Module 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 P1602 Buick Description
What are the Possible Causes of the DTC P1602 Buick?
- Faulty Knock Sensor Module
- Knock Sensor Module harness is open or shorted
- Knock Sensor Module circuit poor electrical connection
How to Fix the DTC P1602 Buick?
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 P1602 Buick 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 P1602 Buick code?
Need more information on how to fix the P1602 Buick code? Get Access to Factory Service Manuals
Need Help with the Code?
Get the P1602 Buick code diagnosed by a professional: Find a repair shop in your area
Frequently Asked Questions about P1602 Buick Code
No Frequently Asked Questions about P1602 Buick Code found.
Discuss the causes and fixes for P1602 Buick OBDII Code
Code P1602 Buick 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.
