Worn or faulty ignition switch (start contacts); Corroded, loose or damaged connectors at the ignition switch or engine control unit; Open circuit, short or high resistance in the start signal wiring; Weak battery or poor battery terminal or earth connections causing low voltage during cranking; Faulty starter relay, clutch or park/neutral switch in the start circuit (depends on model and gearbox); Fault within the engine control unit or immobiliser/body control module communication.

P1196

Ignition Switch Start Circuit Fault.

Kia
Powertrain
Manufacturer code
Medium severity

How this code is built

P: SystemPowertrain
1: Defined byThe manufacturer
1: AreaFuel and air metering
96: FaultThe specific fault in that area

What it means

On a Kia, P1196 means the engine control unit has detected a fault in the ignition switch start circuit. It expects to see a start signal (crank request) from the ignition switch at the right moments, and the signal was missing, stuck, or did not match other inputs such as engine speed. Exact trigger conditions can vary by model and engine, so check the manufacturer data for the vehicle.

Symptoms

Engine slow to start or no start
Starter does not engage or engages intermittently
Engine cranks but the start signal seems to stay on after starting
Malfunction indicator lamp on
Intermittent loss of power to accessories when turning the key

Possible causes

Worn or faulty ignition switch (start contacts)likely
Corroded, loose or damaged connectors at the ignition switch or engine control unitlikely
Open circuit, short or high resistance in the start signal wiringpossible
Weak battery or poor battery terminal or earth connections causing low voltage during crankingpossible
Faulty starter relay, clutch or park/neutral switch in the start circuit (depends on model and gearbox)possible
Fault within the engine control unit or immobiliser/body control module communicationrare

How to diagnose

Read all stored codes and freeze frame data, noting battery voltage and engine state when the code set, then check for related codes
Test battery condition and check terminals and main earths for tightness and corrosion
Inspect the ignition switch connector, fuses and relays in the start circuit for damage, moisture or corrosion
Check the start signal at the engine control unit with the key in the crank position using live data, if the vehicle supports it
Wiggle-test the harness between the ignition switch and control unit while monitoring the signal for dropouts
Check the wiring for continuity, short to earth and short to supply against the manufacturer wiring diagram
Check the clutch switch or park/neutral switch operation on the relevant model
Test the ignition switch contacts for resistance and correct operation in each key position

How to fix

Replace the ignition switch if the start contacts are worn or faulty
Clean, repair or replace damaged connectors and terminals
Repair or replace damaged wiring in the start signal circuit
Recondition or replace the battery, and clean and tighten terminals and earths
Replace a faulty starter relay or related switch
Check for updated software or replace the control unit only after all wiring and switch faults are ruled out and the manufacturer confirms it

Can I keep driving?

Medium severity

If the car starts and runs normally it can be driven short-term, but it may fail to start without warning, so get it checked soon. If it is hard to start or stalls, avoid relying on it.

Guide written by AI from the code's definition. Confirm with a diagnosis before replacing parts.