Nissan Rogue (T33) 2021-Present Service Manual: 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 cooling electric water pump) |
Diagnosis condition |
|
| Signal (terminal) | — | ||
| Threshold | Pump response duty becomes 83 – 92% after maintaining 2 – 8% (pump side: under protection control) | ||
| Diagnosis delay time | 8 – 12 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.
-
Turn ignition switch OFF and wait at least 10 seconds.
-
Turn ignition switch ON.
-
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.
-
Start the engine and warm it up to the normal operating temperature.
-
Wait at least 20 seconds.
-
Check 1st trip DTC.
Is DTC P14AA 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
-
Erase DTC.
-
Perform DTC confirmation procedure. Refer to DTC Description.
Is the DTC P14AA detected again?
YES>>Replace charge air cooler electric water pump. Refer to Removal and Installation.
NO>>INSPECTION END
COMPONENT FUNCTION CHECK
With CONSULT
-
Start the engine.
-
On CONSULT screen, select “ENGINE”>>“Active Test”>>“Charge air cooler cooling electric water pump”.
-
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.
Other materials:
Head up Display Unit
Reference Value
VALUES ON THE DIAGNOSIS TOOLNOTE:
The following table includes information (items)
inapplicable to this Nissan Ariya vehicle. For information (items)
applicable to this vehicle, refer to CONSULT display items.
Monitor item Condition Value/Status
Main switch
[Ignition ...
Fuel Level Sensor Signal Circuit
Component Function Check
PERFORM COMPONENT FUNCTION CHECK (1)
Ignition switch OFF.
Disconnect fuel level sensor unit, fuel pump and FPCM (fuel level sensor) (main) harness connector.
Connect variable resistor between harness connector terminals located
on the Nissan Ariya vehicle s ...
2wd. Symptom Diagnosis. Noise, Vibration and Harshness (nvh) Troubleshooting
Noise, Vibration and Harshness (nvh) Troubleshooting
NVH Troubleshooting Chart
Use chart below to find the cause of the symptom. If necessary, repair or replace these parts. Possible cause and SUSPECTED PARTS Symptom Reference
REAR AXLE
Noise Shake Vibration Shimmy Judder Poor quality ...