What Does P1534 Mean?
The PCM has detected an abnormally high voltage signal in the 'B' camshaft position actuator control circuit on Bank 2. This indicates a short to voltage or open ground condition in the circuit.
Common Causes
35%
Wiring harness shorted to voltage source or power wire
30%
Open or poor ground connection for actuator circuit
20%
Failed camshaft actuator solenoid with internal open
10%
Damaged connector causing short to voltage
5%
Failed PCM driver circuit stuck high
Diagnostic Steps
1
Step 1: Disconnect Bank 2 exhaust camshaft actuator connector and measure voltage on control circuit wire with ignition on; should be 0V
2
Step 2: Check ground circuit continuity from actuator connector to PCM and engine ground; repair if high resistance found
3
Step 3: Inspect wiring harness for damage or routing too close to voltage sources
4
Step 4: Measure actuator solenoid resistance to verify coil integrity (typical spec 6-12 ohms)
5
Step 5: Monitor PCM command signal with scan tool during activation test; if PCM commands but voltage stays high, suspect PCM
Estimated Repair Cost
$120 - $650
Parts + labor, varies by vehicle and location
The PCM has detected an abnormally high voltage signal in the 'B' camshaft position actuator control circuit on Bank 2. This indicates a short to voltage or open ground condition in the circuit.
The most common cause of P1534 ("B" Camshaft Position Actuator Control Circuit Signal High Bank 2) is: Wiring harness shorted to voltage source or power wire
Typical repair costs for P1534 range from $120 to $650, depending on the vehicle, location, and whether you do it yourself or go to a shop.
Vehicle is safe to drive but may experience reduced performance and fuel economy. Electrical short to voltage may damage PCM or other components.
Start by connecting an OBD2 scanner to read the code and any freeze frame data. Then follow the diagnostic steps specific to P1534 to identify the root cause.
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Quick Info
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Powertrain
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Variable Valve Timing System
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