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P0705KiaKia Forte HubAll Kia P0705High Severity

P0705 on Kia Forte

Transmission Range Sensor Circuit Malfunction (PRNDL Input)

Factory diagnostic protocol and troubleshooting wire for fault code P0705 specifically for the Kia Forte (2020–2026, 2.0L Smartstream 4-Cyl (147HP) / 1.6L Turbo GT (201HP)).

Verified OEM Telemetry & Field Repair Tree
Kia Forte2020–2026
Kia Forte
Sedan2.0L Smartstream 4-Cyl (147HP) / 1.6L Turbo GT (201HP)
Reliability
Sensor Voltage Ref
0.1V – 5.0V Ref
Forte SAE Mode $01
ECU Network Bus
500 kbps CAN-FD
ISO 15765-4 Compliant
Drivability Status
Drivable (Short Trip)
High urgency level
Est. Repair Cost
$120 - $450 (DIY: $40 - $160)
Parts & Labor DIY
Check P0705 On Another Kia Model:
Diagnose P0705 on Specific Forte Model Year:

1. Symptoms of P0705 on Kia Forte

When the Engine Control Module (ECM/PCM) on your Kia Forte (2.0L Smartstream 4-Cyl (147HP) / 1.6L Turbo GT (201HP)) logs fault code P0705, drivers commonly observe:

Check Engine Light on on Kia Forte (2.0L Smartstream 4-Cyl (147HP) / 1.6L Turbo GT (201HP))
Vehicle will not crank/start in Park (starts only in Neutral) on Kia Forte (2.0L Smartstream 4-Cyl (147HP) / 1.6L Turbo GT (201HP))
Gear indicator on dashboard (P R N D 1 2) is blank or displays wrong gear on Kia Forte (2.0L Smartstream 4-Cyl (147HP) / 1.6L Turbo GT (201HP))
Transmission shifts harshly or goes into 3rd gear limp mode on Kia Forte (2.0L Smartstream 4-Cyl (147HP) / 1.6L Turbo GT (201HP))
Reverse backup lights fail to illuminate on Kia Forte (2.0L Smartstream 4-Cyl (147HP) / 1.6L Turbo GT (201HP))
Kia Forte OBD-II Port Location
The 16-pin diagnostic connector is located Behind driver dash bezel near knee panel. Plug in your scan tool to verify freeze-frame sensor values.

2. Most Likely Causes on Kia Forte

Historical warranty claims and technical repair bulletins for Kia Forte point to the following failure distribution:

55%
Misaligned or faulty Transmission Range Sensor / Neutral Safety Switch (NSS) (Kia OEM Part)
25%
Corroded or water-logged connector on transmission side (Kia OEM Part)
12%
Stretched or misadjusted shift linkage cable (Kia OEM Part)
8%
Broken internal switch contacts (Kia OEM Part)
* Source: Synthesized from NHTSA ODI field repair telemetry and verified OEM Technical Service Bulletin (TSB) repair tree frequency percentiles for Kia Forte.

3. Step-by-Step DIY Repair Guide for Kia Forte

01
Check PRNDL Live Data

Move gear selector through all positions while monitoring scan tool TR PID to see which gear positions fail to register. on the Kia Forte equipped with 2.0L Smartstream 4-Cyl (147HP) / 1.6L Turbo GT (201HP).

Required Tool: OBD-II Scanner
02
Inspect Shift Cable Alignment

Ensure the mechanical shift linkage fully clicks the transmission lever into the physical detent for Park and Neutral. on the Kia Forte equipped with 2.0L Smartstream 4-Cyl (147HP) / 1.6L Turbo GT (201HP).

Required Tool: Pliers, Socket Set
03
Test Neutral Safety Switch Continuity

Use multimeter to check continuity across switch pins in Park, Reverse, Neutral, and Drive. on the Kia Forte equipped with 2.0L Smartstream 4-Cyl (147HP) / 1.6L Turbo GT (201HP).

Required Tool: Digital Multimeter
04
Replace or Re-align Range Sensor

Loosen mounting bolts, use alignment pin to align sensor slot with transmission shaft in Neutral, torque bolts, or install new OEM sensor. on the Kia Forte equipped with 2.0L Smartstream 4-Cyl (147HP) / 1.6L Turbo GT (201HP).

Required Tool: 10mm/12mm Sockets, Alignment Pin
05
Clear Trouble Codes and Verify Starting

Clear DTCs and confirm engine starts in Park and Neutral, reverse lights activate, and gear display is accurate. on the Kia Forte equipped with 2.0L Smartstream 4-Cyl (147HP) / 1.6L Turbo GT (201HP).

Required Tool: OBD-II Scanner
Recommended Parts & Testing Tools

Equipment for Diagnosing Kia Forte (P0705)

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Direct-Fit Replacement Part

Kia Forte OEM Replacement Sensor

4.7 / 5.0 (Verified Fit)

Direct-fit replacement assembly engineered to OEM tolerances for Kia Forte.

$45 – $95 Prime
Check Fitment on Amazon
Sensor Signal Voltage Meter

AstroAI Auto-Ranging Digital Multimeter

4.6 / 5.0 (Best Seller)

Essential for testing 0.1V–5.0V sensor reference signals, ground continuity (<0.20Ω), and harness resistance.

$29.99 Prime
View on Amazon
Top Mobile OBD-II Scanner

BlueDriver Bluetooth Pro OBDII Scan Tool

4.7 / 5.0 (50,000+ Reviews)

Reads and clears enhanced codes (ABS, Airbag, Transmission, Engine) & live freeze-frame telemetry on phone.

Compare OEM & Aftermarket Replacement Sensors for Kia ForteVerified direct-fit pricing from Denso, Bosch, Motorcraft, and ACDelco on Amazon.
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Other Common Fault Codes on Kia Forte

Frequently diagnosed powertrain, emissions, and sensor trouble codes logged on the Kia Forte:

4. Kia Forte P0705 FAQs

What causes code P0705 to trigger on a Kia Forte?

On the Kia Forte (2.0L Smartstream 4-Cyl (147HP) / 1.6L Turbo GT (201HP)), P0705 is most frequently caused by Misaligned or faulty Transmission Range Sensor / Neutral Safety Switch (NSS) or Corroded or water-logged connector on transmission side.

Where is the OBD-II port located on my Kia Forte?

On the Kia Forte, the 16-pin DLC diagnostic connector is located Behind driver dash bezel near knee panel. Plug in any standard OBD-II scanner with the ignition in the ON position to read freeze-frame parameters.

Can I safely drive my Kia Forte with code P0705?

Caution. Vehicle may not start in Park, backup lights may not work, and transmission may lock in Limp Mode. Given that P0705 carries a High severity rating, we advise avoiding heavy towing or aggressive throttle inputs until sensor readings are verified.