Nissan Rogue (T33) 2021-Present Service Manual: P14ac Charge Air Cooler Cooling Electric Water Pump

Nissan Rogue (T33) 2021-Present Service Manual / Engine :: Engine Control System / Kr15ddt :: Dtc/circuit Diagnosis / P14ac Charge Air Cooler Cooling Electric Water Pump

DTC Description

DTC DETECTION LOGIC

DTC

CONSULT screen terms

(Trouble diagnosis content) 		DTC detection condition
P14AC

Charge air cooler cooling electric W/P

(Charge air cooler cooling electric water pump) 		Diagnosis condition

  • Engine running at idle

  • Warm-up condition

  • Battery voltage: More than 11V
Signal (terminal) —
Threshold Pump response duty becomes 83 – 92% after maintaining 2 – 8% (pump side: under protection control)
Diagnosis delay time 8 – 19 seconds

POSSIBLE CAUSE

  • Charge air cooler (CAC) coolant leakage

  • CAC coolant is mixed in air.

  • Protection control is activated during pump idle running.

  • Charge air cooler electric water pump

FAIL-SAFE

Not applicable

DTC CONFIRMATION PROCEDURE

PRECONDITIONING

NOTE:

When DTC Confirmation Procedure has been preciously conducted, always perform the following before conducting the next test.

  1. Turn ignition switch OFF and wait at least 10 seconds.

  2. Turn ignition switch ON.

  3. Turn ignition switch OFF and wait at least 10 seconds.

>>

GO TO 2.

PERFORM DTC CONFIRMATION PROCEDURE

NOTE:

Before performing this procedure, check that the battery voltage is more than 11 V during ignition switch ON.

  1. Start the engine and warm it up to the normal operating temperature.

  2. Wait at least 20 seconds.

  3. Check 1st trip DTC.

Is DTC P14AC detected?

YES>>

Proceed to DTC Diagnosis Procedure.

NO-1>>

To check malfunction symptom before repair: Refer to Intermittent Incident.

NO-2>>

Confirmation after repair: INSPECTION END

DTC Diagnosis Procedure

CHECK COOLANT LEVEL

Check the coolant level at the charge air cooler (CAC) coolant reservoir tank. Refer to Inspection.

Is the inspection result normal?

YES>>

GO TO 3.

NO>>

GO TO 2.

CHECK CAC COOLING SYSTEM FOR COOLANT LEAKAGE

Check CAC cooling system for coolant leakage. Refer to Inspection.

Is the inspection result normal?

YES-1>>

With CONSULT: Refill coolant until the specified range. Refer to Refilling. And then, GO TO 4.

YES-2>>

Without CONSULT: GO TO 3.

NO>>

Repair or replace error-detected parts.

PERFORM DTC CONFIRMATION PROCEDURE

  1. Erase DTC.

  2. Perform DTC confirmation procedure. Refer to DTC Description.

Is the DTC P14AC detected again?

YES>>

Replace charge air cooler electric water pump. Refer to Removal and Installation.

NO>>

INSPECTION END

COMPONENT FUNCTION CHECK

With CONSULT

  1. Start the engine.

  2. On CONSULT screen, select “ENGINE”>>“Active Test”>>“Charge air cooler cooling electric water pump”.

  3. Perform the test and check that the water pump 1 is activated.

Is the inspection result normal?

YES>>

INSPECTION END (Protection mode operation)

NO>>

Replace charge air cooler electric water pump. Refer to Removal and Installation.

    P14aa Charge Air Cooler Cooling Electric Water Pump
    DTC Description DTC DETECTION LOGIC DTC CONSULT screen terms (Trouble diagnosis content) DTC detection condition P14AA Charge air cooler cooling electric W/P (Charge air cooler ...
    P14c1 Brake Switch
    DTC Description DTC DETECTION LOGIC DTC CONSULT screen terms (Trouble diagnosis content) DTC detection condition P14C1 00 CCS brake pedal SW (BCM) Diagnosis condition Ignition s...

    Other materials:

    P2297 Air Fuel Ratio Sensor 1
    DTC Description DTC DETECTION LOGIC DTC CONSULT screen terms (Trouble diagnosis content) DTC detection condition P2297 00 O2 SENSOR 1 B1 (O2 Sensor Out of Range During Deceleration Bank 1 Sensor 1) Diagnosis condition Engine run and fuel shut off Signal A/F sensor ...

    Accelerator Pedal Released Position Learning
    Description Accelerator Pedal Released Position Learning is a function of ECM to learn the fully released position of the accelerator pedal by monitoring the accelerator pedal position sensor output signal. It must be performed each time harness connector of accelerator pedal position senso ...

    Dtc/circuit Diagnosis. Mood Lamp Control Circuit
    Component Function Check CAUTION: Before performing the diagnosis, check that the following are normal: Interior room lamp power supply circuit Mood lamp (center console) bulb (with ambient lighting) CHECK MOOD LAMP OPERATION CONSULT Open the front door LH. Ignition switc ...