P0342 on a 2022 Toyota Camry
Cam Position Sensor Low Input (Bank 1)
P0342 on a 2022 Toyota Camry indicates cam position sensor low input (bank 1). It usually stays drivable short-term but should be diagnosed promptly. The most common cause is camshaft position sensor signal wire shorted to ground (typically $80–$350). Confirm the root cause before replacing parts.
What does P0342 mean on a 2022 Toyota Camry?
P0342 is set when the ECM sees the Bank 1 "A" camshaft position sensor circuit sitting below its calibrated minimum voltage. On most engines "A" is the intake camshaft, or the single cam sensor on engines that only have one. The usual explanation is a signal wire shorted to ground, an open circuit that lets the ECM's internal pull-down hold the line low, or a sensor that has failed to a low output. P0342 is a voltage-level fault — distinct from P0340 (no usable signal) and P0341 (signal present but out of spec).
The symptoms, causes, and diagnostic steps below describe P0342 itself, so they read the same on nearby Toyota Camry model years. Powertrain and trim details vary year to year — confirm the specifics against your own vehicle before buying parts.
Is it safe to drive a 2022 Toyota Camry with P0342?
In most cases a 2022 Toyota Camry stays drivable for short trips with P0342 active, but diagnose and repair it promptly. This is a high-severity code — ignoring it can lead to further damage or a failed emissions test.
What are the symptoms of P0342 on a 2022 Toyota Camry?
- Check Engine Light is illuminated
- Hard start with extended cranking
- Possible complete no-start condition
- Stalling, often when the engine is hot
- Rough running and noticeably reduced power
- Misfire-like stumbling if the ECM loses cylinder sync
- Reduced fuel economy
What causes P0342 on a 2022 Toyota Camry?
| Cause | Likelihood | Estimated repair (USD) |
|---|---|---|
| Camshaft position sensor signal wire shorted to ground | Most common | $80–$350 |
| Failed camshaft position sensor (output stuck low) | Most common | $100–$400 |
| Corroded or water-intruded sensor connector | Common | $50–$250 |
| Oil leaking into the cam sensor port and shorting the sensor internals Replace the o-ring along with the sensor or the new one fails the same way. | Common | $80–$350 |
| Open or high-resistance reference-voltage or ground circuit feeding the sensor | Occasional | $80–$350 |
| Damaged or slipped camshaft reluctor / tone wheel | Occasional | $300–$1,200 |
| Failed PCM input for the cam sensor circuit | Rare | $400–$1,500 |
Cost ranges are editorial estimates for parts and labor at an independent U.S. shop — not quotes. What you actually pay moves with your region, the shop's hourly rate, which engine you have, and how much diagnostic time the job takes. Dealer service departments typically sit above these ranges.
How to diagnose this on a 2022 Toyota Camry
-
Inspect the connector and harness at the cam sensor
The cam sensor usually threads into the cylinder head or the timing cover near the front of the engine. Unplug it and look for corrosion, spread or pushed-back pins, oil inside the connector body, and chafe marks where the harness passes a bracket. Fix what you find before testing further — a marginal connector produces exactly this code.
Tools: Connector unlock tool, Flashlight, Electrical contact cleaner
-
Back-probe the signal wire with the key on
With the sensor still connected and the key on, engine off, measure the signal wire against a good ground. A Hall-effect cam sensor normally rests high (near reference voltage) and pulls low as the reluctor passes. A signal line sitting at or near zero volts with the key on is the condition that sets P0342.
Tools: Multimeter, Back-probe pins, Wiring diagram
-
Run the disconnect test to split sensor from wiring
Unplug the sensor and measure the signal wire at the harness side, key on. If the voltage now rises to the ECM's reference level, the wiring is fine and the sensor was pulling it down — replace the sensor. If it stays pinned low with the sensor unplugged, the short to ground is in the harness, and a new sensor will change nothing.
Tools: Multimeter, Wiring diagram
-
Verify sensor power and ground
With the connector unplugged and the key on, confirm the supply voltage the wiring diagram calls for on the power pin, and a clean low-resistance path from the ground pin to chassis ground. A corroded ground makes a good sensor read low and sets P0342 with no fault in the sensor at all.
Tools: Multimeter, Wiring diagram
-
Scope the sensor while cranking
If the static tests all pass, capture the waveform during a crank. A healthy Hall sensor produces clean square pulses at consistent spacing. Pulses that are present but clipped low, or a trace that never leaves the baseline, confirm the sensor or its supply. Compare against the known-good waveform in the service manual.
Tools: Oscilloscope, Back-probe pins
Known Technical Service Bulletins for the 2020-2024 Toyota Camry
Manufacturers publish Technical Service Bulletins (TSBs) when a known issue affects a specific vehicle. These bulletins come from the NHTSA database for your Toyota Camry.
- ENGINE Feb 27, 2026
OBSOLETE NOTICE February 27, 2026: This bulletin is no longer applicable and is now obsolete.
NHTSA #11029896 - ELECTRICAL SYSTEM Jan 30, 2026
OBSOLETE NOTICE January 30, 2026: This bulletin is now obsolete. Please see T-SB-0001-26.
NHTSA #11028726 - ELECTRICAL SYSTEM Jan 28, 2026
Some 2018 – 2024 model year Toyota vehicles equipped with a Premium Audio with Dynamic Navigation System require a Special Service Tool (SST) USB flash drive to update the map, points of interest, and system software.
NHTSA #11028722 - UNKNOWN OR OTHER Jan 7, 2026
Some 2005 – 2026 Toyota vehicles that have undergone water intrusion may exhibit a condition in which a musty odor is present. Follow the procedures in this bulletin to remediate the odor and address this condition. The purpose of this Service Bulletin is to provide general guidelines and procedures for odor remediation. This Service Bulletin provides a guide on how to prepare and treat the interior of the vehicle for odor remediation. Refer to the applicable model and model year Repair Manual and the EPA (Environmental Protection Agency) website for the most up-to-date safety and precautionary guidelines.
NHTSA #11028712 - ENGINE Aug 7, 2025
The specific condition covered by this program is for a small engine coolant leak that can occur from the flow shut-off valve that can allow coolant to drip on other parts of the vehicle. This can cause "Engine Maintenance Required" to be displayed on the instrument cluster or cause the A/C not to function normally. Although the flow shut-off valve is covered by Toyota’s New Vehicle Limited Warranty for 36 months or 36,000 miles (whichever comes first), we at Toyota care about the customers’ ownership experience. Toyota is providing coverage for repairs related to Flow Shut-off Valve Coolant Leak.
NHTSA #11022949 - ELECTRICAL SYSTEM Jun 25, 2025
Some 2021 – 2022 model year Avalon, 2018 – 2024 Camry, 2019 – 2025 model year Corolla, 2022 – 2025 model year Corolla Cross, and 2019 – 2025 model year RAV4 vehicles with A25A-FKS and M20A-FKS engines may have a MIL ON condition with one or more of the following Diagnostic Trouble Codes (DTCs) upon cold soak start up with engine coolant temperatures between 14°F – 41°F: •P030027 – Random/Multiple Cylinder Misfire Detected (Emission) Signal Rate of Change Above Threshold •P030000 – Random/Multiple Cylinder Misfire Detected •P030100 – Cylinder 1 Misfire Detected •P030200 – Cylinder 2 Misfire Detected •P030300 – Cylinder 3 Misfire Detected •P030400 – Cylinder 4 Misfire Detected
NHTSA #11020670
+14 more TSBs available in MECH AI's TSB explorer for this vehicle.
NHTSA complaints & recalls for the 2022 Toyota Camry
Owner-reported safety complaints and official recalls filed with the U.S. National Highway Traffic Safety Administration for the 2022 Toyota Camry. Use these to gauge how common a problem is on your specific vehicle before you start chasing Toyota Camry diagnostics.
- VEHICLE SPEED CONTROL 6
- AIR BAGS 10
- UNKNOWN OR OTHER 7
- SERVICE BRAKES 7
- ELECTRICAL SYSTEM 7
1 active recall
- AIR BAGS:SENSOR:OCCUPANT CLASSIFICATION Dec 2023
Toyota Motor Engineering & Manufacturing (Toyota) is recalling certain 2020-2021 Avalon, Avalon Hybrid, Corolla, Highlander, Highlander Hybrid, RAV4, RAV4 Hybrid, Lexus ES350, Lexus RX350, Lexus RX450H, 2021 Sienna Hybrid, Lexus ES250, 2020-2022 Camry, Camry Hybrid, and ES300H ve…
NHTSA campaign 23V865000
How do I fix P0342 on a 2022 Toyota Camry?
- Replace the camshaft position sensor with an OEM part
- Repair the shorted-to-ground signal wire
- Repair or replace the corroded sensor connector
- Replace the cam sensor o-ring to stop oil intrusion
- Replace a damaged or slipped cam reluctor wheel
Engines in the 2022 Toyota Camry
The 2022 Toyota Camry was offered with the 2.5L 4-cylinder and 3.5L 6-cylinder engines, including a hybrid version. Which one you have changes where P0342 is most likely to originate, so confirm your engine before ordering parts.
Engine data: EPA fueleconomy.gov.
P0340, P0341, P0342, P0343 — which one you have matters
All four are the same sensor. What differs is what the ECM measured, and that changes where you point the multimeter:
| Code | What the ECM saw |
|---|---|
| P0340 | No usable signal at all |
| P0341 | Signal present, but the pattern or timing is wrong |
| P0342 | Circuit voltage below the calibrated minimum |
| P0343 | Circuit voltage above the calibrated maximum |
P0342 and P0343 are the pair that most reliably points at wiring rather than at the sensor, because a specific voltage rail failure is usually caused by a specific wire touching something it shouldn’t.
The one test that saves the most money
Unplug the sensor and measure the harness-side signal wire with the key on. That single measurement splits the diagnosis cleanly:
- Voltage comes up to reference → the harness is good, the sensor was dragging the line down. Replace the sensor.
- Voltage stays low → the sensor was never the problem. The short to ground is in the harness, and you have wire to chase.
A cam sensor is a cheap part and a quick job on most engines, which is exactly why so many get replaced for nothing. Two minutes with a multimeter tells you whether yours is one of them.
Why a cam sensor fault can strand you
The ECM uses the cam signal to work out which cylinder is on its compression stroke rather than its exhaust stroke. Without a usable cam signal, many engines default to a fail-safe that cuts fuel injection entirely — the engine cranks and never fires. Others fall back to running on the crank signal alone in batch-fire mode, which runs, but roughly. Which behaviour you get depends on the manufacturer, so a P0342 that lets you drive today can still leave you stranded tomorrow.
The heat-soak pattern
If the code is intermittent and the trouble shows up after the engine is fully warm — stop for fuel after half an hour of driving, come back to a long crank or a no-start — that pattern points at a sensor whose internals break down as they heat up, or at oil that has worked its way into the sensor body. Both get worse over time. Fix it on your schedule rather than on the side of a road.
P0342 on a 2022 Toyota Camry: frequently asked questions
What does diagnostic trouble code P0342 mean on a 2022 Toyota Camry?
P0342 is set when the ECM sees the Bank 1 "A" camshaft position sensor circuit sitting below its calibrated minimum voltage. On most engines "A" is the intake camshaft, or the single cam sensor on engines that only have one. The usual explanation is a signal wire shorted to ground, an open circuit that lets the ECM's internal pull-down hold the line low, or a sensor that has failed to a low output. P0342 is a voltage-level fault — distinct from P0340 (no usable signal) and P0341 (signal present but out of spec).
What are the symptoms of P0342 on a 2022 Toyota Camry?
Check Engine Light is illuminated. Hard start with extended cranking. Possible complete no-start condition. Stalling, often when the engine is hot. Rough running and noticeably reduced power. Misfire-like stumbling if the ECM loses cylinder sync. Reduced fuel economy
What causes P0342 on a 2022 Toyota Camry?
Camshaft position sensor signal wire shorted to ground (most-common). Failed camshaft position sensor (output stuck low) (most-common). Corroded or water-intruded sensor connector (common). Oil leaking into the cam sensor port and shorting the sensor internals (common). Open or high-resistance reference-voltage or ground circuit feeding the sensor (occasional). Damaged or slipped camshaft reluctor / tone wheel (occasional). Failed PCM input for the cam sensor circuit (rare)
Is it safe to drive a 2022 Toyota Camry with P0342?
In most cases a 2022 Toyota Camry stays drivable for short trips with P0342 active, but it should be diagnosed and repaired promptly — this is a high-severity code. Ignoring it can lead to further damage or a failed emissions test.