What Does P1360 Mean?
The PCM has detected an abnormally high voltage condition on the ignition coil control circuit or lost input from the IDM. This typically indicates an open circuit or lack of ground in the ignition control system.
Safety Warning
Engine may not start or will run extremely rough with multiple cylinder misfires. Unsafe to drive due to potential stalling.
Common Causes
30%
Open circuit in ignition coil control wiring
25%
Failed ignition coil with open primary winding
25%
Faulty Ignition Diagnostic Module (IDM)
12%
Poor ground connection at coil or IDM
8%
Failed PCM coil driver circuit
Diagnostic Steps
1
Step 1: Check for battery voltage at ignition coil power supply terminal with key on
2
Step 2: Verify ignition coil primary winding resistance (typically 0.5-2 ohms)
3
Step 3: Test continuity of control wire from PCM/IDM to each ignition coil
4
Step 4: Measure voltage on control circuit during cranking (should pulse between 0-12V)
5
Step 5: Verify ground circuit integrity with voltage drop test under load
Estimated Repair Cost
$150 - $700
Parts + labor, varies by vehicle and location
The PCM has detected an abnormally high voltage condition on the ignition coil control circuit or lost input from the IDM. This typically indicates an open circuit or lack of ground in the ignition control system.
The most common cause of P1360 (IDM Input Circuit Malfunction/ Ignition Coil Control Circuit High Voltage) is: Open circuit in ignition coil control wiring
Typical repair costs for P1360 range from $150 to $700, depending on the vehicle, location, and whether you do it yourself or go to a shop.
Engine may not start or will run extremely rough with multiple cylinder misfires. Unsafe to drive due to potential stalling.
Start by connecting an OBD2 scanner to read the code and any freeze frame data. Then follow the diagnostic steps specific to P1360 to identify the root cause.
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Quick Info
Category
Powertrain
System
Ignition System
Difficulty
Type
Manufacturer
Recommended Tools
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