Safety Warning

DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.

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HOMESERVICE MANUALSKIA2010FORTE EX, STANDARDREPAIR AND DIAGNOSIS (SINGLE PAGE)ENGINE PERFORMANCESYSTEMENGINE CONTROL SYSTEM DIAGNOSIS (SULEV) (2 OF 2)DTC P0564: CRUISE CONTROL MULTI-FUNCTION INPUT A CIRCUITINSPECTION/REPAIRWIRE HARNESS INSPECTIONSIGNAL CIRCUIT INSPECTION

2010 Kia Forte EX, Standard

Signal Circuit Inspection

2010 Kia Forte EX, StandardSECTION Signal Circuit Inspection

Check signal circuit voltage
1. IG key OFF.
2. Disconnect 'CRUISE REMOCON SWITCH' connector.
3. IG key ON.
4. Measure voltage between 'Signal (Cruise SW) ' terminal of 'CRUISE REMOCON SWITCH' harness connector and chassis ground.
  Specification : 4.8V~5.1V
  
  Fig 1: Measuring Voltage Between Signal (Cruise SW) Terminal Of CRUISE REMOCON SWITCH Harness Connector & Chassis Ground
  Courtesy of KIA MOTORS AMERICA, INC.
5. Is the measured value within specification?
  YES
  - Go to "COMPONENT INSPECTION " procedure.
  NO
  - Go to "Check short in signal circuit" as follows.
Check short in signal circuit
1. IG key OFF.
2. Disconnect 'CRUISE REMOCON SWITCH' connector and ECM (PCM) connector.
3. Check resistance between 'Signal (Cruise SW) ' terminal and 'CRUISE MAIN' terminal of 'CRUISE REMOCON SWITCH' harness connector.
4. Check resistance between 'Signal (Cruise SW) ' terminal and 'Ground (Cruise SW) ' terminal of 'CRUISE REMOCON SWITCH' harness connector.
  Specification : Infinite
  
  Fig 2: Checking Resistance Between Cruise Remocon Switch Terminals
  Courtesy of KIA MOTORS AMERICA, INC.
5. Is the measured value within specification?
  YES
  - Go to "Check open in signal circuit" as follows.
  NO
  - Repair short in signal circuit, and then go to "VERIFICATION OF VEHICLE REPAIR " procedure.
Check open in signal circuit
1. IG key OFF.
2. Disconnect 'CRUISE REMOCON SWITCH' connector and ECM (PCM) connector.
3. Measure resistance between 'Signal (Cruise SW) ' terminal of 'CRUISE REMOCON SWITCH' harness connector and 'Signal (Cruise SW) ' terminal of ECM (PCM) connector.
  Specification : Below 1.0Ω
  
  Fig 3: Measuring Resistance Between Signal (Cruise SW) Terminals Of Cruise Remocon Switch Harness Connector & ECM (PCM) Connector
  Courtesy of KIA MOTORS AMERICA, INC.
4. Is the measured value within specification?
  YES
  - Go to "COMPONENT INSPECTION " procedure.
  NO
  - Repair open between 'Signal (Cruise SW) ' terminal of 'CRUISE REMOCON SWITCH' harness connector and 'Signal (Cruise SW) ' terminal of ECM (PCM) connector, and then go to "VERIFICATION OF VEHICLE REPAIR " procedure.

RENDER: 1.0x

NO RELATED

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When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

• You smell fuel, burning insulation, or see smoke.
• Brakes feel soft, pull hard to one side, or make grinding noises.
• The engine overheats, stalls repeatedly, or misfires under load.
• You are missing required tools, torque specs, or safe lifting equipment.
• You are not confident in the next step or safety outcome.