P1555 Lexus Code - Reactor Temperature Sensor Circuit Low
Quick Answer
P1555 Lexus indicates Reactor Temperature Sensor Circuit Low. Common causes include Faulty Reactor Temperature Sensor, Reactor Temperature Sensor harness is open or shorted, Reactor Temperature 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
- P1555 Lexus indicates Reactor Temperature Sensor Circuit Low.
- Common causes
- Common causes include Faulty Reactor Temperature Sensor, Reactor Temperature Sensor harness is open or shorted, Reactor Temperature 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 P1555 Lexus Description
What are the Possible Causes of the DTC P1555 Lexus?
- Faulty Reactor Temperature Sensor
- Reactor Temperature Sensor harness is open or shorted
- Reactor Temperature Sensor circuit poor electrical connection
How to Fix the DTC P1555 Lexus?
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.
What is the Cost to Diagnose the Code?
Labor: 1.0
To diagnose the P1555 Lexus 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 P1555 Lexus Code
1. What does the OBDII code P1555 mean on a Lexus?
P1555 on a Lexus indicates a problem with the Reactor Temperature Sensor Circuit, specifically that the sensor is reading a low voltage or temperature.
2. What are the common symptoms of code P1555 in a Lexus?
Common symptoms include the check engine light turning on, reduced engine performance, and potentially increased emissions.
3. What causes the P1555 code to appear on a Lexus?
Possible causes include a faulty reactor temperature sensor, damaged wiring or connectors, or a malfunctioning engine control module (ECM).
4. Can I drive my Lexus with the P1555 code active?
Driving with the P1555 code is not recommended, as it may lead to poor engine performance or damage to the emissions system if not addressed promptly.
5. How do I diagnose the P1555 code on my Lexus?
Diagnosis involves inspecting the reactor temperature sensor, checking for damaged wiring or loose connections, and using a multimeter to test sensor output voltage.
6. What tools are needed to fix the P1555 code on a Lexus?
You'll need an OBDII scanner, a multimeter, and basic hand tools to diagnose and repair issues related to the reactor temperature sensor circuit.
7. How much does it cost to fix the P1555 code on a Lexus?
Repair costs can vary, but replacing the reactor temperature sensor typically ranges from $100 to $300, depending on parts and labor.
8. Can a dirty or clogged sensor cause the P1555 code?
Yes, a dirty or clogged sensor may cause inaccurate readings, which could trigger the P1555 code.
9. How do I reset the P1555 code after repairs?
After addressing the issue, use an OBDII scanner to clear the code, or disconnect the battery for a few minutes to reset the ECM.
10. Is the P1555 code specific to Lexus vehicles?
While P1555 can appear on other vehicles, its meaning may vary. For Lexus, it specifically refers to the Reactor Temperature Sensor Circuit Low.
Discuss the causes and fixes for P1555 Lexus OBDII Code
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