P0345 Code: Dodge Ram 1500 (2019-2024) - Causes, Symptoms & Fixes

No recalls found in NHTSA database

Based on the provided NHTSA data for 2019–2024 Dodge Ram 1500, there are no owner complaints and no recalls recorded for DTC P0345. This guide uses general automotive knowledge for the diagnosis and combines it with the Ram 1500’s common engine layouts. Data limitations: lack of complaints/recalls in the dataset means this code may be uncommon or under-reported for this specific model/years.

CODE MEANING AND SEVERITY

• Code: P0345
• Full meaning: Camshaft Position Sensor "A" Circuit (Bank 1) — or Camshaft Position Sensor A Circuit (Single Sensor) depending on engine layout. The Ram 1500 (2019–2024) uses engines with multiple cam sensors (bank-specific). The “A” often refers to the primary cam sensor for Bank 1; some engines with more banks use “A” for the first cam sensor in use.
• What it indicates: A problem in the camshaft position sensor circuit that reads the camshaft position signal for timing reference. This could be sensor failure, wiring/connector problems, or an issue with the cam timing reference (phaser/timing components).
• Potential symptoms and drivability impact:
  • MIL (check engine light) illuminated
  • Engine may run rough, misfire, or shake
  • Hard starting or no-start conditions
  • Reduced power or abrupt limp-like operation
  • Poor idle quality or stalling
  • Possible no communication with PCM for cam signal
• Data note: No NHTSA complaints in the provided data for this code on 2019–2024 Ram 1500, and no recalls. This limits real-world prevalence insight; rely on symptom patterns and diagnostic steps from general practice.

COMMON CAUSES ON DODGE RAM 1500

• Faulty camshaft position sensor (A) itself
• Damaged or corroded sensor wiring, connectors, or harness near the sensor
• Poor or interrupted 5V reference or ground to the cam sensor circuit
• Faulty/dirty or damaged sensor connector, moisture intrusion, or loose connections
• Timing-related issues (rare but possible): cam phaser or timing chain tensioner issues affecting the cam timing reference or sensor alignment
• Faulty crankshaft position sensor or crank-related timing issues causing PCM misinterpretation
• PCM/software fault or corrupted calibrations
• Low battery voltage or poor electrical supply affecting sensor operation
• Mechanical issues causing improper cam timing signal (e.g., cam reluctor ring damage)

SYMPTOMS TO LOOK FOR

• Check Engine Light (MIL) on or pending codes including P0345
• Rough idle, misfires (especially on one or more cylinders)
• Difficulty starting, stalling, or no-start condition
• Hesitation, reduced power, or poor acceleration
• Degraded fuel economy or erratic engine performance
• Live data shows irregular cam sensor signal or loss of signal
• Possible related codes (for diagnosis): P0340, P0341, P0344, P0335, P0336, P0010–P0014 (timing-related or sensor-related codes)

DIAGNOSTIC STEPS (SYSTEMATIC APPROACH)

Important: Work with the engine off when inspecting wiring; use the ignition ON state and engine cranking for electrical checks as needed.

Step 1 – Verify and collect data

• Read codes with a reliable OBD-II scan tool and note freeze-frame data.
• Check for any related codes (P0335/P0336 for crank, P0010–P0014 for cam timing actuators, etc.).
• Note symptoms and vehicle condition (temperature, load, rpm, etc.).

Step 2 – Visual inspection

• Inspect camshaft position sensor(s) and wiring harnesses for signs of damage, oil intrusion, moisture, bent pins, or loose connectors.
• Disconnect and reconnect the sensor connector to ensure a solid electrical connection.
• Check the wiring harness routing for pinch points, abrasion, or heat damage.

Step 3 – Electrical tests (powered)

• With ignition ON (engine OFF), verify 5V reference and ground at the cam sensor connector using a multimeter (per the service manual’s pinout). Look for:
  • Stable 5V reference on the supply/reference pin
  • Good ground continuity on the ground pin
  • No shorts to battery voltage on signal/other pins
• If 5V reference or ground is missing or erratic, there is a circuit fault (wire/connector or PCM issue) that must be corrected before replacing the sensor.

Step 4 – Sensor signal integrity

• With engine cranking and ignition ON, monitor the cam sensor signal with a scope or a scan tool capable of live data.
• A healthy cam sensor should produce a consistent digital or waveform signal that changes with RPM. Look for:
  • A regular waveform cadence that correlates with engine speed
  • No signal, erratic pulses, or irregular timing indicating sensor or wiring fault
• If the signal is present and clean, but the PCM still logs P0345, suspect a PCM input/output issue or a timing reference problem (less common).

Step 5 – Check crankshaft position sensor and timing system (if indicated)

• If P0335/P0336 or other timing-related codes are present, inspect the crank sensor and timing components (reluctor/wheel, belt/chain, phaser) for damage or misalignment.
• Mis-timing or a failed phaser can cause cam sensor readings to be out of expected range; this may require mechanical inspection or timing chain/tensioner service.

Step 6 – Mechanical inspection (where applicable)

• If sensors and wiring check out but symptoms persist, inspect for cam timing hardware wear or damage (phasers, chain, guides) as they can affect the cam position signal.
• In some engines, cam timing components are tied to variable valve timing (VVT) systems; failures here can produce incorrect cam timing data.

Step 7 – Repair or replace

• If the cam sensor or its connector is faulty, replace the sensor with a new part and ensure the connector is clean and secured.
• If wiring or connectors are damaged, repair/replace damaged wiring or the harness and restore solid connections.
• If timing components are suspected or confirmed faulty, address those per service manual (this can be significantly more involved and costly).

Step 8 – Clear codes and test drive

• After repair, clear the codes and perform a road test or engine run to verify that P0345 does not return.
• Re-check for any new codes that may appear during the test.

RELATED CODES

• P0340 – Camshaft Position Sensor Circuit Malfunction (general)
• P0341 – Camshaft Position Sensor A Circuit Range/Performance
• P0344 – Camshaft Position Sensor Intermittent Interruption
• P0335 – Crankshaft Position Sensor A Circuit
• P0336 – Crankshaft Position Sensor A Circuit Range/Performance
• P0010, P0011, P0012, P0014 – Camshaft Timing Actuator/Position related (if your engine uses an actuator for cam timing)
  Note: The Ram 1500 may display bank-specific variants of cam sensor codes depending on engine configuration (V6, V8, diesel variants).

REPAIR OPTIONS AND COSTS (2025 PRICES)

Prices vary by region, dealership vs independent shop, and whether OEM/M-certified parts are used. Estimates below assume typical 2019–2024 Ram 1500 engines (V6/V8 with cam sensors accessible from the front/top of the engine).

• Camshaft position sensor replacement (one sensor)
  • Parts: typically $30–$150 (OEM/Mopar or aftermarket)
  • Labor: about 0.5–1.5 hours
  • Typical total: $120–$350
• Camshaft position sensor replacement (if both sensors or additional bank sensor is needed)
  • Parts: $60–$300
  • Labor: 1–2 hours
  • Typical total: $200–$650
• Wiring harness repair or connector replacement
  • Parts: $20–$150 (depends on whether it’s a simple harness repair or connector replacement)
  • Labor: 0.5–2 hours
  • Typical total: $100–$500
• Timing-related failures (cam phaser, timing chain tensioner, or related components)
  • Parts: $100–$700 (or more for higher-end components)
  • Labor: 4–8+ hours depending on access and engine variant
  • Typical total: $800–$2,000+
• PCM/software updates
  • Parts: usually included in labor; software updates may be free at a dealer or SOC (subscription) cost
  • Labor: variable; often 0.5–1.5 hours
  • Typical total: $50–$200 if needed
    Notes:
• If the issue is purely electrical (sensor/wiring) the repair cost will be on the lower end.
• If timing hardware is implicated, expect substantially higher costs and potential risk of engine damage if timing was incorrect for an extended period.
• Always get a diagnostic or estimate prior to labor when multiple issues could be present.

DIY vs PROFESSIONAL

• DIY viability:
  • Generally feasible for cam sensor replacement on many Ram 1500 engines if you have basic tools, are comfortable with disconnecting the battery and sensor connectors, and can follow a service manual or reputable guides.
  • Pros: lower labor cost, quick turn-around.
  • Cons: risk of misdiagnosis, potential for mis-wiring, and some models may have sensor access behind hoses or near hot/pressed areas. Phasing timing components is risky if you misinterpret the system.
• Professional route:
  • Recommended if you are not confident with electrical diagnostics, wiring harness inspection, or suspect timing components. A professional will typically perform a thorough electrical check, verify sensor signals with an oscilloscope, and assess for timing issues with proper tooling.
• Tools and tips if DIY:
  • Basic hand tools (sockets, screwdrivers, pliers)
  • Multimeter and/or OBD-II live data tool capable of reading cam signal
  • If available, an automotive oscilloscope for waveform analysis
  • Replacement cam sensor(s) from OEM or reputable aftermarket
  • Dielectric grease for connectors; ensure connectors are clean and dry
  • Safety: disconnect battery before disconnecting electrical connectors; avoid engine cranking with open circuit to prevent PCM faults

PREVENTION

• Regular maintenance and clean power delivery:
  • Keep battery and charging system healthy; a fluctuating voltage can cause sensor faults to appear.
• Electrical harness health:
  • Periodically inspect cam sensor wiring and connectors for wear, chafing, or moisture ingress; repair promptly.
• Use correct fluids and oil changes on schedule:
  • Proper oil viscosity and clean engine oil help prevent sludge and debris from affecting sensor housings and timing components.
• Protect connectors from moisture:
  • Ensure seals and grommets around the engine stay in good condition; use dielectric grease to reduce corrosion where applicable.
• Avoid harsh engine condition changes:
  • Harsh throttle loads and abrupt stops won’t cause sensor failures, but consistent high-stress operation can accelerate wear on timing components if the cam timing system is already compromised.
• Timely service if a related sensor is replaced:
  • After replacing cam sensors or timing components, clear codes and perform a thorough test drive to confirm stability of signals and no additional faults.

Final notes

• The P0345 diagnostic path on the Ram 1500 (2019–2024) hinges on the camshaft position sensor circuit, sensor and wiring integrity, and, if indicated, cam timing reference components. Because the provided data shows no complaints and no recalls, the issue is likely intermittent or isolated to specific vehicles rather than a widespread model-year fault. Use the diagnostic steps above to verify the root cause, and be prepared for a sensor/wiring repair as the most common fix. If timing components are suspected, be prepared for more extensive service.