What Does P1530 Mean?
The PCM has detected an abnormally high voltage signal on the exhaust camshaft position actuator control circuit for Bank 1. This indicates a short to power or open ground condition affecting the Bank 1 exhaust VVT solenoid control.
Common Causes
35%
Wiring harness shorted to battery voltage or power circuit
25%
Open or high resistance ground circuit for exhaust VVT solenoid
25%
Failed exhaust VVT solenoid with internal short to voltage
10%
Damaged connector with terminals crossed or shorted
5%
PCM internal driver circuit providing constant high voltage
Diagnostic Steps
1
Step 1: Disconnect exhaust VVT solenoid connector; measure voltage on harness side with ignition on
2
Step 2: Verify ground circuit integrity from solenoid to PCM; check for less than 1 ohm resistance
3
Step 3: Inspect wiring routing near alternator and other high-voltage components for insulation damage
4
Step 4: Measure exhaust VVT solenoid resistance and check for internal short to voltage
5
Step 5: Compare PCM commanded duty cycle to actual voltage output using scan tool live data; test PCM output if all else checks good
Estimated Repair Cost
$150 - $800
Parts + labor, varies by vehicle and location
The PCM has detected an abnormally high voltage signal on the exhaust camshaft position actuator control circuit for Bank 1. This indicates a short to power or open ground condition affecting the Bank 1 exhaust VVT solenoid control.
The most common cause of P1530 ("B" Camshaft Position Actuator Control Circuit Signal High Bank 1) is: Wiring harness shorted to battery voltage or power circuit
Typical repair costs for P1530 range from $150 to $800, depending on the vehicle, location, and whether you do it yourself or go to a shop.
Vehicle is safe to operate but Bank 1 exhaust cam will operate with fixed timing, causing performance loss, increased fuel consumption, and elevated emissions. Repair promptly to avoid 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 P1530 to identify the root cause.
OBDHut Mobile App
Scan codes directly from your car with the OBDHut app.
Coming Soon
Quick Info
Category
Powertrain
System
Variable Valve Timing System
Difficulty
Type
Manufacturer
Recommended Tools
OBD2 Scanner
A quality scan tool helps you read codes, view live data, and clear faults.
