What Does P1362 Mean?
The secondary (high voltage) circuit of ignition coil C has failed or is performing outside specifications. This affects spark delivery to the cylinder(s) controlled by coil C.
Common Causes
50%
Failed ignition coil with shorted or open secondary winding
25%
Damaged spark plug wire or coil boot allowing arcing
15%
Fouled or damaged spark plug causing excessive resistance
10%
Carbon tracking on coil tower or distributor cap
Diagnostic Steps
1
Step 1: Visually inspect coil C for cracks, carbon tracking, or oil contamination
2
Step 2: Measure secondary winding resistance (typically 6,000-15,000 ohms depending on type)
3
Step 3: Inspect spark plug wires and boots for damage, burns, or deterioration
4
Step 4: Remove and inspect spark plug(s) served by coil C for fouling or damage
5
Step 5: Test coil output with spark tester under load conditions
Estimated Repair Cost
$100 - $350
Parts + labor, varies by vehicle and location
The secondary (high voltage) circuit of ignition coil C has failed or is performing outside specifications. This affects spark delivery to the cylinder(s) controlled by coil C.
The most common cause of P1362 (Ignition Coil C Secondary Circuit Malfunction) is: Failed ignition coil with shorted or open secondary winding
Typical repair costs for P1362 range from $100 to $350, depending on the vehicle, location, and whether you do it yourself or go to a shop.
Engine will misfire causing rough running and reduced power. Prolonged operation can damage catalytic converter from unburned fuel.
Start by connecting an OBD2 scanner to read the code and any freeze frame data. Then follow the diagnostic steps specific to P1362 to identify the root cause.
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Quick Info
Category
Powertrain
System
Ignition System
Difficulty
Type
Manufacturer
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