P0135 1997 Honda Civic Code - O2 Sensor Heater Circuit Malfunction Bank 1 Sensor 1
Quick Answer
Oxygen Sensors (O2S) or Heated Oxygen Sensors (HO2S) need to reach a minimum operating temperature of 750 degrees F to produce an accurate voltage signal. Common causes include Faulty Heated Oxygen Sensor (H2OS) Bank 1 Sensor 1, Heated Oxygen Sensor (H2OS) Bank 1 Sensor 1 circuit fuse, Heated Oxygen Sensor (H2OS) Bank 1 Sensor 1 circuit open shorted to ground. Severity is Moderate - service should be scheduled soon. The vehicle may still be drivable for short trips if it runs normally, but avoid hard driving and repair it soon.
- What it means
- P0135 1997 Honda Civic indicates O2 Sensor Heater Circuit Malfunction Bank 1 Sensor 1.
- Common causes
- Common causes include Faulty Heated Oxygen Sensor (H2OS) Bank 1 Sensor 1, Heated Oxygen Sensor (H2OS) Bank 1 Sensor 1 circuit fuse, Heated Oxygen Sensor (H2OS) Bank 1 Sensor 1 circuit open shorted to ground.
- Severity
- Moderate - service should be scheduled soon.
- Can I drive?
- The vehicle may still be drivable for short trips if it runs normally, but avoid hard driving and repair it soon.
Code P0135 1997 Honda Civic Description
In order to achieve the require temperature, a heater element is included inside the heated oxygen sensor. The ECM controls the heated oxygen sensor heater element based on signals from the engine coolant temperature and engine load. The ECM controls the heater element circuit by allowing current flow to ground.
The ECM monitors the voltage signal received through the heater element circuit and determines the state of the circuit by comparing the voltage detected with the factory specifications.
What are the Possible Causes of the DTC P0135 1997 Honda Civic?
- Faulty Heated Oxygen Sensor (H2OS) Bank 1 Sensor 1
- Heated Oxygen Sensor (H2OS) Bank 1 Sensor 1 circuit fuse
- Heated Oxygen Sensor (H2OS) Bank 1 Sensor 1 circuit open shorted to ground
- Heated Oxygen Sensor (H2OS) Bank 1 Sensor 1 circuit poor electrical connection
- Faulty Engine Control Module (ECM)
How to Fix the DTC P0135 1997 Honda Civic?
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 P0135 1997 Honda Civic 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.
Need more information about the P0135 1997 Honda Civic code?
Need more information on how to fix the P0135 1997 Honda Civic code? Get Access to Factory Service Manuals
Need Help with the Code?
Get the P0135 1997 Honda Civic code diagnosed by a professional: Find a repair shop in your area
Frequently Asked Questions about P0135 1997 Honda Civic Code
1. What does OBDII code P0135 mean on a 1997 Honda Civic?
- This code indicates a malfunction in the O2 sensor heater circuit for Bank 1 Sensor 1.
2. What are common symptoms of P0135 in a 1997 Honda Civic?
- Common symptoms include poor fuel economy, rough idling, and an illuminated check engine light.
3. What causes the O2 sensor heater circuit malfunction in a 1997 Honda Civic?
- The most common causes are a faulty O2 sensor, damaged wiring, or a blown fuse related to the sensor heater circuit.
4. How can I diagnose the issue causing code P0135 on my 1997 Honda Civic?
- Use a multimeter to check the resistance of the O2 sensor heater circuit, inspect the wiring for damage, and test the fuse related to the sensor heater.
5. Can I continue driving my 1997 Honda Civic with code P0135?
- While it may be possible to drive the vehicle, it is recommended to address the issue promptly to prevent potential damage to the catalytic converter.
6. How do I repair the O2 sensor heater circuit malfunction on my 1997 Honda Civic?
- The repair typically involves replacing the faulty O2 sensor, repairing any damaged wiring, and ensuring the fuse related to the sensor heater is intact.
7. Are there any DIY tips for fixing code P0135 on a 1997 Honda Civic?
- DIY enthusiasts can attempt to replace the O2 sensor themselves following proper procedures outlined in the vehicle's repair manual.
8. Can a bad O2 sensor cause other issues in a 1997 Honda Civic besides code P0135?
- Yes, a malfunctioning O2 sensor can lead to poor engine performance, increased emissions, and potential damage to the catalytic converter.
9. How much does it typically cost to repair OBDII code P0135 on a 1997 Honda Civic?
- The cost can vary depending on the root cause of the issue, but expect to pay anywhere from $100 to $300 for parts and labor.
10. How often should the O2 sensor be replaced in a 1997 Honda Civic to prevent code P0135?
- It is recommended to replace the O2 sensor every 60,000 to 90,000 miles as part of regular maintenance to avoid potential issues like P0135.
Discuss the causes and fixes for P0135 1997 Honda Civic OBDII Code
Code P0135 1997 Honda Civic comments
No comments found for this page.
Fix Your Car Smarter
Try the New AutoCodes App!
Get complete OBDII diagnostics, repair solutions, and cost estimates, plus AI chat support on demand.
