P1352: IC Output High/Pulse Detected When Grounded Cyl.2
Methodology: We combine code standards with complaint and reliability patterns, then review for clear, vehicle-first diagnosis steps.
Sources: SAE/OBD-II definitions, manufacturer service information, and public reliability reports (including NHTSA where applicable).
Limits: Guidance is informational and may not match every model-year or revision. Confirm with the official manual and diagnostics before replacing parts. For safety-critical or electrical work, use a qualified technician.
What Does P1352 Mean?
P1352 is a manufacturer-specific diagnostic trouble code: IC Output High/Pulse Detected When Grounded Cyl.2. This code applies to BUICK, CADILLAC, CHEVY, CHRYSLER, GM vehicles. Unlike generic OBD-II codes, manufacturer-specific codes are defined by the vehicle maker and may only apply to certain makes and models.
Symptoms of P1352
- ⚠️ Check Engine Light (MIL) illuminated
- ⚠️ IC Output High/Pulse Detected When Grounded Cyl.2 not functioning as expected
- ⚠️ Related system may be in fail-safe mode
- ⚠️ Reduced engine performance
Common Causes
- 🔍 Faulty IC Output High/Pulse Detected When Grounded Cyl.2
- 🔍 Wiring or connector issue in IC Output High/Pulse Detected When Grounded Cyl.2 circuit
- 🔍 Related mechanical or electrical fault
- 🔍 ECM/PCM issue (rare)
Frequently Asked Questions
What does P1352 mean?
Can I drive with code P1352?
How much does it cost to fix P1352?
What To Do Next
Possible Fixes
- 🔧 Inspect IC Output High/Pulse Detected When Grounded Cyl.2 and related wiring
- 🔧 Replace faulty IC Output High/Pulse Detected When Grounded Cyl.2
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1
Find your vehicle above
Click your make and model for real owner reports and common causes specific to your vehicle.
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2
Check for recalls
Go to nhtsa.gov/recalls and enter your VIN. Free repairs if covered.
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Get a professional diagnosis
A code alone doesn't identify the exact failed part. A diagnostic ($50–$150) pinpoints the root cause.