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 MANUALSKIA2015FORTE EXREPAIR AND DIAGNOSIS (SINGLE PAGE)ENGINE PERFORMANCETESTING & DIAGNOSISENGINE CONTROL SYSTEM DIAGNOSIS (1 OF 2) - 2.0LDTC P0335: CRANKSHAFT POSITION SENSOR 'A' CIRCUITWIRING INSPECTIONSIGNAL CIRCUIT INSPECTION

2015 Kia Forte EX

Signal Circuit Inspection

2015 Kia Forte EXSECTION Signal Circuit Inspection

Check Open In Signal Circuit
1. IG KEY "OFF".
2. Disconnect CKPS connector.
3. IG KEY "ON" & ENG "OFF"
4. Measure the voltage between signal A, signal B terminal of CKPS harness connector and chassis ground.
  Specification: Approx 2.5V
5. Is the measured voltage within specification?
  YES
  - Go to "CHECK SHORT IN SIGNAL CIRCUIT " procedure as follows.
  NO
  - Go to "CHECK SHORT TO GROUND IN SIGNAL CIRCUIT " procedure.
Check Short To Ground In Signal Circuit
1. IG KEY "OFF".
2. Disconnect CKPS connector and ECM/PCM connector.
3. Measure the resistance between signal A, signal B terminal of CKPS harness connector and chassis ground.
  Specification: Infinite
4. Is the measured resistance within specifications?
  YES
  - Repair Open in signal circuit and then, go to "VERIFICATION OF VEHICLE REPAIR " procedure.
  NO
  - Repair Short to ground in signal circuit and then, go to "VERIFICATION OF VEHICLE REPAIR " procedure.
Check Short In Signal Circuit
1. IG KEY "OFF".
2. Disconnect CKPS connector and ECM/PCM connector.
3. Measure the resistance between signal A, signal B terminal of CKPS harness connector.
  Specification: Infinite
4. Is the measured resistance within specifications?
  YES
  - Go to "COMPONENT INSPECTION " procedure.
  NO
  - Repair Short in signal circuit 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.