What Does P1576 Mean?
The right engine mount solenoid valve control circuit is shorted to ground. The PCM detects that the control circuit has lower resistance than expected, indicating an unintended ground path.
Common Causes
40%
Damaged wiring harness with exposed wire touching ground/frame
30%
Failed engine mount solenoid with internal short to ground
15%
Pinched or crushed wire during previous engine work
10%
Corroded connector allowing moisture path to ground
5%
PCM internal driver circuit shorted
Diagnostic Steps
1
Step 1: Disconnect right engine mount solenoid connector and measure resistance to ground on PCM side - should be high resistance (>10k ohms)
2
Step 2: If low resistance detected, inspect wiring harness for damage, particularly near sharp edges and moving components
3
Step 3: Check solenoid resistance with multimeter - compare to specifications (typically 10-50 ohms)
4
Step 4: Wiggle test the wiring harness while monitoring resistance to identify intermittent shorts
5
Step 5: If wiring and solenoid test good, verify PCM ground circuits are intact and test PCM driver output
Estimated Repair Cost
$150 - $850
Parts + labor, varies by vehicle and location
The right engine mount solenoid valve control circuit is shorted to ground. The PCM detects that the control circuit has lower resistance than expected, indicating an unintended ground path.
The most common cause of P1576 (Right Eng. Mount Solenoid Valve Short to ground) is: Damaged wiring harness with exposed wire touching ground/frame
Typical repair costs for P1576 range from $150 to $850, depending on the vehicle, location, and whether you do it yourself or go to a shop.
Safe to drive but short circuit may cause PCM damage if left unrepaired. Increased vibration will be noticeable.
Start by connecting an OBD2 scanner to read the code and any freeze frame data. Then follow the diagnostic steps specific to P1576 to identify the root cause.
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Quick Info
Category
Powertrain
System
Engine Mount System
Difficulty
Type
Manufacturer
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