P1390 Isuzu Code - G Sensor Circuit Intermittent Voltage Low- Rough road sensor
Quick Answer
P1390 Isuzu indicates G Sensor Circuit Intermittent Voltage Low- Rough road sensor. Common causes include Faulty G-Sensor, G-Sensor harness is open or shorted, G-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
- P1390 Isuzu indicates G Sensor Circuit Intermittent Voltage Low- Rough road sensor.
- Common causes
- Common causes include Faulty G-Sensor, G-Sensor harness is open or shorted, G-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 P1390 Isuzu Description
What are the Possible Causes of the DTC P1390 Isuzu?
- Faulty G-Sensor
- G-Sensor harness is open or shorted
- G-Sensor circuit poor electrical connection
How to Fix the DTC P1390 Isuzu?
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 P1390 Isuzu 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 P1390 Isuzu Code
1. What are the common symptoms of OBDII code P1390 in an Isuzu?
- Common symptoms include rough idling, poor engine performance, and potential stalling on rough roads.
2. What does the G Sensor Circuit Intermittent Voltage Low - Rough road sensor code P1390 mean on an Isuzu?
- This code indicates an intermittent low voltage signal from the rough road sensor, affecting the G sensor circuit.
3. What are the possible causes of the P1390 OBDII code in an Isuzu?
- Potential causes include a faulty rough road sensor, damaged wiring or connectors, or issues with the G sensor circuit itself.
4. How can I diagnose the P1390 OBDII code on my Isuzu?
- Diagnosis involves checking the rough road sensor for proper operation, inspecting wiring for any damage, and testing the G sensor circuit for continuity.
5. Can driving on rough roads trigger the P1390 code in an Isuzu?
- Yes, driving on rough roads can sometimes trigger the P1390 code due to the sensor detecting abnormal voltage fluctuations.
6. What are the potential risks of ignoring the P1390 fault code in an Isuzu?
- Ignoring this code can lead to worsened engine performance, potential stalling, and increased risk of safety issues on rough terrain.
7. How can I repair the P1390 OBDII code on my Isuzu?
- Repairing the P1390 code involves replacing a faulty rough road sensor, repairing damaged wiring, or addressing any issues with the G sensor circuit.
8. Can I drive my Isuzu with the P1390 code present?
- It is not recommended to drive your Isuzu with the P1390 code present, as it can lead to further damage and safety concerns.
9. Is the P1390 OBDII code specific to Isuzu vehicles?
- While this code is more common in Isuzu vehicles, it can potentially appear in other vehicle makes with similar sensor systems.
10. How long does it typically take to repair the P1390 fault code in an Isuzu?
- The repair time for the P1390 code can vary depending on the exact cause, but it generally takes a few hours to diagnose and address the issue effectively.
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