What Does P2316 Mean?
The PCM detected high voltage in the primary control circuit of ignition coil F. This typically indicates an open circuit, disconnected connector, or failed coil preventing current flow.
Common Causes
35%
Open circuit in coil F primary wiring or connector
30%
Failed ignition coil F with open primary winding
20%
Loose or corroded connector terminals at coil F
10%
Damaged ground circuit preventing coil operation
5%
PCM driver circuit failure (open output)
Diagnostic Steps
1
Step 1: Inspect coil F connector for loose pins, corrosion, or incomplete seating
2
Step 2: Measure primary resistance of coil F; infinite reading indicates open winding
3
Step 3: Check for battery voltage at coil F power supply terminal with ignition on
4
Step 4: Test continuity from PCM connector to coil F control terminal with harness disconnected
5
Step 5: Verify proper ground connection at coil mounting and trace ground circuit integrity
Estimated Repair Cost
$120 - $450
Parts + labor, varies by vehicle and location
The PCM detected high voltage in the primary control circuit of ignition coil F. This typically indicates an open circuit, disconnected connector, or failed coil preventing current flow.
The most common cause of P2316 (Ignition Coil "F" Primary Control Circuit High) is: Open circuit in coil F primary wiring or connector
Typical repair costs for P2316 range from $120 to $450, depending on the vehicle, location, and whether you do it yourself or go to a shop.
Complete loss of spark on cylinder F causes significant power reduction and rough running. Unburned fuel may damage catalytic converter.
Start by connecting an OBD2 scanner to read the code and any freeze frame data. Then follow the diagnostic steps specific to P2316 to identify the root cause.
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Quick Info
Category
Powertrain
System
Ignition System
Difficulty
Type
Generic (SAE)
Recommended Tools
OBD2 Scanner
A quality scan tool helps you read codes, view live data, and clear faults.
