What Does P1575 Mean?
The right engine mount solenoid valve circuit is shorted to battery positive voltage (B+). This means the solenoid control wire is receiving constant voltage when it should be PCM-controlled.
Common Causes
35%
Damaged wiring causing short to power wire in harness
30%
Failed engine mount solenoid with internal short to power
20%
Chafed wiring against engine or frame components
10%
Connector pin corrosion causing cross-circuit short
5%
Previous repair with incorrect wiring routing
Diagnostic Steps
1
Step 1: Disconnect right engine mount solenoid connector and check if code clears - if yes, solenoid is shorted internally
2
Step 2: With solenoid disconnected, measure voltage on PCM control wire - should read near 0V, if battery voltage present, wiring is shorted
3
Step 3: Inspect entire wiring harness from solenoid to PCM for chafing, melting, or damage near hot engine components
4
Step 4: Check for improper repair work or aftermarket accessories that may have compromised wiring
5
Step 5: Isolate short location by testing resistance to B+ at various points along harness
Estimated Repair Cost
$150 - $900
Parts + labor, varies by vehicle and location
The right engine mount solenoid valve circuit is shorted to battery positive voltage (B+). This means the solenoid control wire is receiving constant voltage when it should be PCM-controlled.
The most common cause of P1575 (Right Eng. Mount Solenoid Valve Short to B+) is: Damaged wiring causing short to power wire in harness
Typical repair costs for P1575 range from $150 to $900, depending on the vehicle, location, and whether you do it yourself or go to a shop.
Vehicle is safe to operate but continued electrical short may drain battery or cause additional electrical damage. Repair promptly to prevent further issues.
Start by connecting an OBD2 scanner to read the code and any freeze frame data. Then follow the diagnostic steps specific to P1575 to identify the root cause.
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Quick Info
Category
Powertrain
System
Engine Mount System
Difficulty
Type
Manufacturer
Recommended Tools
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