Kia Sorento Iii C1396 Engine Trouble Code
What is Kia Sorento Iii C1396?
When Kia Sorento Iii C1396 code appears, first check your gas cap. Pull over safely, ensure it is tight, and inspect for cracks. A loose or damaged gas cap affects fuel-system pressure and emissions. A replacement cap costs about $3–$10. This simple fix can resolve the code and improve fuel economy.
C1396 on the Kia Sorento Iii
Transmission-mounted speed sensors on the Kia Sorento Iii share a ground path with the engine control module. A corroded ground point on the transmission bell housing generates electrical noise that the ECU misinterprets as a C1396 fault condition.
Code Information
| Code Type: | OBD-II Chassis (C) Trouble Code |
| System: | Chassis |
| Vehicle: | Kia Sorento Iii |
| Brand: | Kia |
| Model: | Sorento Iii |
| Code: | C1396 |
C1396 Kia Sorento Iii Symptoms
Check Engine Light
Illuminated Kia Sorento Iii dashboard warning
Engine Stalling
Engine stops unexpectedly or misfires
Performance Issues
Reduced power or acceleration on the Kia Sorento Iii
Starting Problems
Difficulty starting the engine
Poor Fuel Economy
Increased fuel consumption on the Kia Sorento Iii
Increased Emissions
Failed emissions test due to C1396
C1396 Code Structure
Understanding what each digit means in the C1396 chassis trouble code:
| C | 1 | 3 | 9 | 6 |
|---|---|---|---|---|
| Chassis Code | Fuel And Air Metering | Throttle/Pedal Position Sensor/Switch A Circuit Intermittent | Crankshaft Position Sensor A Circuit Malfunction | Ignition Coil A Primary/Secondary Circuit Malfunction |
How to Fix Kia Sorento Iii C1396
Diagnostic Steps:
Oxygen sensors measure exhaust gas oxygen content to optimise air-fuel ratio. This optimisation improves fuel economy and reduces emissions. Sensors degrade over time and require periodic replacement.
Repair Solution:
Brake switch circuit concerns may involve open or shorted BPP circuits, damaged switches, or misadjustment. Verify stoplight function and follow proper self-test procedures per service manual.
Technical Notes:
C1396 DTC indicating a sensor fault does not always mean the sensor itself is bad. The issue may stem from the systems being monitored or even the sensor wiring. Proper diagnosis is essential.
Kia Sorento Iii C1396 Repair Cost
PCV system overhaul on the Kia Sorento Iii — which resolves oil-mist contamination of the MAF sensor — costs $100–$200. The MAF sensor should be cleaned ($15–$25 DIY) or replaced ($80–$150) at the same time to ensure accurate fuelling after the fix.
C1396 Description
C1396 engine trouble code is related to Ignition Coil A Primary/Secondary Circuit Malfunction.
Main Cause
The primary reason for C1396 OBD-II Engine Trouble Code is: Throttle/Pedal Position Sensor/Switch A Circuit Intermittent.
Common C1396 Misdiagnosis on the Kia Sorento Iii
Replacing the PCM/ECU on the Kia Sorento Iii for a persistent C1396 is a last-resort action that is often performed prematurely. Statistically, less than 2% of C1396 faults on this platform originate in the ECU; wiring, sensors, and mechanical causes account for the remainder.
DIY Repair Guide: C1396 on Kia Sorento Iii
For the Kia Sorento Iii, an EGR valve inspection is a useful DIY step before spending money on diagnosis. Remove the valve (2–4 bolts depending on generation), inspect for carbon build-up, and use carburettor cleaner and a soft brass brush to clean the valve face and seat.
Preventing C1396 on the Kia Sorento Iii
Verify that the Kia Sorento Iii engine air box lid clips are fully seated after any air filter service. An unsealed air box is a direct path for unmetered air past the MAF sensor and is an extremely common — and extremely embarrassing — cause of C1396.
Frequently Asked Questions — Kia Sorento Iii C1396
A: Simple fixes like a purge valve or gas cap replacement take under an hour. Sensor replacements typically require 1–2 hours of shop time. More involved repairs like VVT actuators or catalytic converters may require a full day or more.