P0352 on GMC: Symptoms, Causes & Fix
Official technical diagnostic wire for fault code P0352 specifically affecting GMC vehicles (Sierra 1500, Yukon, Acadia, Canyon, Terrain).
Select Your GMC Model for P0352:
1. Common Symptoms on GMC Vehicles
When GMC Engine Control Modules (ECM) trigger fault code P0352, drivers typically report:
2. Root Causes on GMC Engines
Historical diagnostic claims across GMC engines point to the following failure distribution:
3. Step-by-Step Fix Protocol for GMC
Swap Coil 2 with Coil 1. If code becomes P0351, replace coil. on GMC engines.
Verify 12V power and trigger pulse. on GMC engines.
Replace Coil B with OEM part. on GMC engines.
Clear DTCs and confirm zero misfires. on GMC engines.
Equipment for Diagnosing GMC (P0352)
Direct-Fit Laser Iridium Spark Plugs (Set of 4/6)
Pre-gapped iridium spark plugs engineered to restore smooth combustion on GMC.
Magnetic Swivel Spark Plug Socket Set
360-degree magnetic swivel socket prevents ceramic plug cracks inside deep engine spark wells.
BlueDriver Bluetooth Pro OBDII Scan Tool
Reads and clears enhanced codes (ABS, Airbag, Transmission, Engine) & live freeze-frame telemetry on phone.
4. GMC P0352 Frequently Asked Questions
What does code P0352 mean on a GMC?
On GMC vehicles, P0352 indicates that the Engine Control Module (ECM) detected ignition coil b primary/secondary circuit malfunction. This typically points to Dead Cylinder 2 ignition coil or Damaged harness wiring.
Can I continue driving my GMC with code P0352?
No. Cylinder 2 ignition coil has failed. Because this code carries a Critical severity rating on GMC powertrains, we recommend scanning live data values promptly to prevent secondary damage.
How much does it cost to fix code P0352 on a GMC?
Estimated DIY parts cost ranges from $100 - $350 (DIY: $30 - $90), while professional shop repairs at an authorized GMC dealership or independent specialist typically range from $180 to $380 including diagnostic labor.