DTC P1299 [YF (2.0L Zetec)]

id0102d0824600

DTC P1299

Cylinder head over temperature protection active

DETECTION CONDITION

• Indicates an engine overheat condition was detected by the cylinder head temperature sensor.

POSSIBLE CAUSE

• Engine cooling system concerns
• Low engine coolant level
• Base engine concerns

Diagnostic procedure

STEP

INSPECTION

ACTION

1
VERIFY FREEZE FRAME DATA HAS BEEN RECORDED
• Has FREEZE FRAME DATA been recorded?
Yes
Go to next step.
No
Record FREEZE FRAME DATA on repair order, then go to next step.
2
VERIFY RELATED SERVICE INFORMATION AVAILABILITY
• Check for related Service Information availability.
• Is any related Service Information available?
Yes
Perform repair or diagnosis according to available Service Information.
• If vehicle is not repaired, go to next step.
No
Go to next step.
3
VERIFY OTHER DTC PRESENT
• Is DTC P1288, P1289, or P1290 present?
Yes
Go to applicable DTC inspection.
No
Go to next step.
4
INSPECT FOR THE OVERHEATING
• Inspect for the overheating.
• Is there any malfunction?
Yes
Repair or replace as necessary, then go to next step.
No
Go to next step.
5
INSPECT CHT SENSOR
• Inspect the cylinder head temperature sensor.
• Is there any malfunction?
Yes
Replace the cylinder head temperature sensor, then go to next step.
No
Go to next step.
6
VERIFY TROUBLESHOOTING OF DTC P1299 COMPLETED
• Make sure to reconnect all disconnected connectors.
• Clear DTC from memory using WDS or equivalent.
• Start engine.
• Warm-up completely.
• Is same DTC present?
Yes
Replace PCM, then go to next step.
No
Go to next step.
7
VERIFY AFTER REPAIR PROCEDURE
• Perform "After Repair Procedure".
• Is there any DTC present?
Yes
Go to applicable DTC inspection.
No
Troubleshooting completed.