C1807 Infiniti Code - Air Suspension Vehicle Height Sensor Voltage
Quick Answer
The Air Levelizer Control Module monitors the Vehicle Height Sensor. Common causes include Faulty Vehicle Height Sensor, Vehicle Height Sensor harness is open or shorted, Vehicle Height 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
- C1807 Infiniti indicates Air Suspension Vehicle Height Sensor Voltage.
- Common causes
- Common causes include Faulty Vehicle Height Sensor, Vehicle Height Sensor harness is open or shorted, Vehicle Height 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 C1807 Infiniti Description
What are the Possible Causes of the DTC C1807 Infiniti?
- Faulty Vehicle Height Sensor
- Vehicle Height Sensor harness is open or shorted
- Vehicle Height Sensor circuit poor electrical connection
- Faulty Air Levelizer Control Module
How to Fix the DTC C1807 Infiniti?
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 C1807 Infiniti 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 C1807 Infiniti Code
1. What does the OBDII code C1807 mean for an Infiniti?
Code C1807 indicates an issue with the air suspension vehicle height sensor voltage, meaning the sensor is providing an abnormal or out-of-range signal to the suspension control module.
2. What are common symptoms of the C1807 code?
Symptoms may include a sagging or uneven vehicle stance, a suspension warning light on the dashboard, or the air suspension not adjusting to the proper height.
3. What causes the C1807 code to appear on an Infiniti?
Common causes include a faulty height sensor, damaged sensor wiring or connectors, corroded electrical connections, or a malfunction in the suspension control module.
4. Can I drive my Infiniti with the C1807 code active?
While the vehicle may still be drivable, it could experience reduced ride comfort and handling. Prolonged driving with unresolved suspension issues may lead to further damage.
5. How do I diagnose the C1807 code on my Infiniti?
Diagnose the issue by inspecting the vehicle height sensor and its wiring for damage, corrosion, or disconnections. Use a scan tool to monitor the sensor's voltage readings and verify they are within specifications.
6. How can I fix the C1807 code on my Infiniti?
Repairs may involve replacing the faulty height sensor, repairing damaged wiring, cleaning corroded connections, or updating/replacing the suspension control module if necessary.
7. What tools are needed to troubleshoot the C1807 code?
You will need an OBDII scanner, a multimeter to check for proper voltage and continuity, and possibly a repair manual for your Infiniti’s specific wiring diagrams.
8. How much does it cost to repair the C1807 code on an Infiniti?
Repair costs can vary but may range from $100 to $500 or more depending on whether the issue is with the sensor, wiring, or control module.
9. Can a blown fuse cause the C1807 code to trigger?
Yes, a blown fuse in the air suspension system can lead to an interruption in power to the height sensor, potentially triggering the C1807 code.
10. Does the C1807 code require reprogramming the ECU after repairs?
Not always, but in some cases, a suspension control module reset or recalibration of the height sensor may be necessary after repairs.
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