P0342 Saturn Code - Camshaft Position Sensor Circuit Low Voltage
Quick Answer
The Camshaft Position (CMP) Sensor sensor works in conjunction with a 1X reluctor wheel on the camshaft. Common causes include Faulty Camshaft Position Sensor, Camshaft Position Sensor harness is open or shorted, Camshaft Position Sensor circuit poor electrical connection. Severity is High - diagnose this code as soon as possible. Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.
- What it means
- P0342 Saturn indicates Camshaft Position Sensor Circuit Low Voltage.
- Common causes
- Common causes include Faulty Camshaft Position Sensor, Camshaft Position Sensor harness is open or shorted, Camshaft Position Sensor circuit poor electrical connection.
- Severity
- High - diagnose this code as soon as possible.
- Can I drive?
- Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.
Code P0342 Saturn Description
The CMP sensor determines whether a cylinder is on a firing stroke or on an exhaust stroke. As the camshaft rotates, the reluctor wheel interrupts a magnetic field produced by a magnet within the sensor. The sensors internal circuitry detects this and produces a signal which the PCM reads. The PCM uses this 1X signal in combination with the Crankshaft Position sensor 24X signal in order to determine crankshaft position and stroke. This diagnostic for the Camshaft Position sensor tests for a loss of Camshaft Position sensor signal.
Observe that as long as the Crankshaft Position sensor 24X signal is available, the engine will start. The PCM can determine top dead center for all cylinders by using the Crankshaft Position sensor 24X signal alone. The Camshaft Position sensor 1X signal is used by the PCM to determine if the cylinder at top dead center is on the firing stroke, or the exhaust stroke. The system attempts synchronization and looks for an increase in engine speed indicating the engine started. If the PCM does not detect an increase in engine speed, the PCM incorrectly synchronized to the exhaust stroke and will re-sync to the opposite cam position. A slightly longer cranking time may be a symptom of this condition.
What are the Possible Causes of the DTC P0342 Saturn?
- Faulty Camshaft Position Sensor
- Camshaft Position Sensor harness is open or shorted
- Camshaft Position Sensor circuit poor electrical connection
- Faulty starter motor
- Starting system circuit
- Dead (Weak) battery
How to Fix the DTC P0342 Saturn?
Review the 'Possible Causes' above and visually examine the corresponding wiring harness and connectors. Check for damaged components and inspect connector pins for signs of being broken, bent, pushed out, or corroded.
Code Tech Notes
What is the Cost to Diagnose the Code?
Labor: 1.0
To diagnose the P0342 Saturn code, it typically requires 1.0 hour of labor. Rates vary by location, vehicle, and shop. Many shops charge between $80–$150 per hour; dealerships and metro areas may be higher, independents may be lower.
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Frequently Asked Questions about P0342 Saturn Code
1. What does the OBDII code P0342 mean on a Saturn?
P0342 indicates that the camshaft position sensor circuit is detecting low voltage, which means the sensor may not be functioning properly or there is a wiring issue.
2. What are the common symptoms of code P0342 in a Saturn?
Common symptoms include hard starting, engine misfires, rough idling, poor acceleration, reduced fuel efficiency, and the Check Engine Light turning on.
3. What causes the P0342 code in a Saturn?
Possible causes include a faulty camshaft position sensor, damaged wiring or connectors in the sensor circuit, a weak or failing battery, or a malfunctioning powertrain control module (PCM).
4. Can a bad battery cause the P0342 code in my Saturn?
Yes, a weak or failing battery can cause low voltage in the camshaft position sensor circuit, triggering the P0342 code.
5. How do I diagnose the P0342 code on a Saturn?
Start by checking the battery voltage, inspecting the camshaft position sensor and its wiring for damage, and testing the sensor’s output voltage with a multimeter. Verify the connections to the PCM as well.
6. Is it safe to drive my Saturn with the P0342 code?
Driving with the P0342 code is not recommended because it can lead to poor engine performance, potential stalling, and further damage to the engine or related components.
7. How do I fix the P0342 code on a Saturn?
Repairs may include replacing the camshaft position sensor, repairing or replacing damaged wiring or connectors, charging or replacing the battery, or reprogramming the PCM if necessary.
8. How much does it cost to fix the P0342 code in a Saturn?
The repair cost depends on the issue. Replacing a camshaft position sensor typically costs $100–$250, while wiring repairs or PCM reprogramming may vary based on labor rates and parts.
9. Can I clear the P0342 code without fixing the problem?
You can clear the code with an OBDII scanner, but it will likely return if the underlying issue is not resolved.
10. What tools are needed to troubleshoot the P0342 code on a Saturn?
You’ll need a multimeter to test voltage, an OBDII scanner to read and clear codes, and basic tools to inspect or replace the camshaft position sensor and wiring.
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