What Does P1364 Mean?
The primary (low voltage control) circuit for ignition coil D has malfunctioned. This indicates a problem with the control signal from the PCM/IDM to coil D or within the coil itself.
Common Causes
45%
Failed ignition coil D with open or shorted primary winding
25%
Open or high resistance in coil control circuit wiring
18%
Failed PCM or IDM coil driver circuit
12%
Poor power or ground connection at coil D
Diagnostic Steps
1
Step 1: Check for proper battery voltage at coil D power supply terminal
2
Step 2: Measure primary winding resistance of coil D (typically 0.5-2 ohms)
3
Step 3: Test continuity of control wire from PCM/IDM to coil D connector
4
Step 4: Verify ground circuit integrity with voltage drop test
5
Step 5: Monitor control signal with oscilloscope during cranking for proper switching pattern
Estimated Repair Cost
$120 - $500
Parts + labor, varies by vehicle and location
The primary (low voltage control) circuit for ignition coil D has malfunctioned. This indicates a problem with the control signal from the PCM/IDM to coil D or within the coil itself.
The most common cause of P1364 (Ignition Coil D Primary Circuit Malfunction) is: Failed ignition coil D with open or shorted primary winding
Typical repair costs for P1364 range from $120 to $500, depending on the vehicle, location, and whether you do it yourself or go to a shop.
Affected cylinder(s) will misfire causing rough running and reduced power. Continued operation risks catalytic converter damage.
Start by connecting an OBD2 scanner to read the code and any freeze frame data. Then follow the diagnostic steps specific to P1364 to identify the root cause.
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Quick Info
Category
Powertrain
System
Ignition System
Difficulty
Type
Manufacturer
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