Nissan Rogue (T33) 2021-Present Service Manual: P023a Charge Air Cooler Cooling Electric Water Pump

Nissan Rogue (T33) 2021-Present Service Manual / Engine :: Engine Control System / Kr15ddt :: Dtc/circuit Diagnosis / P023a Charge Air Cooler Cooling Electric Water Pump

DTC Description

DTC DETECTION LOGIC

DTC

CONSULT screen terms

(Trouble diagnosis content) 		DTC detection condition
P023A 00

Charged air cooler coolant pump

(Charge Air Cooler Coolant Pump Control Circuit/Open) 		Diagnosis condition

  • Engine running at idle

  • Warm-up condition

  • Battery voltage: 11 – 16 V
Signal (terminal) CAC cooling water pump signal
Threshold A signal duty of the CAC coolant pump operation command sent from ECM is less than 2%
Diagnosis delay time 3 seconds or more

POSSIBLE CAUSE

  • Harness and connectors [Charge air cooler (CAC) electric water pump command circuit is open or shorted.]

  • CAC 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 DTC.

Is DTC P023A 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

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. Check the value of charge air cooler (CAC) electric water pump duty under the following conditions:

    Item Condition Value
    Electric water pump 1 duty Normal mode 20 – 80

Is the inspection result normal?

YES>>

INSPECTION END

NO>>

GO TO 2.

CHECK CAC ELECTRIC WATER PUMP HARNESS CONNECTOR INSTALLATION

Check CAC electric water pump harness connector installation condition visually and tectually.

Is the inspection result normal?

YES>>

GO TO 3.

NO>>

Repair or replace error-detected parts.

CHECK CAC ELECTRIC WATER PUMP POWER SUPPLY-I

  1. Turn ignition switch OFF.

  2. Disconnect CAC electric water pump harness connector.

  3. Turn ignition switch ON.

  4. Check the voltage between CAC electric water pump harness connector and ground.

    + − Voltage
    CAC electric water pump
    Connector Terminal
    E36 2 Ground Battery voltage

Is the inspection result normal?

YES>>

GO TO 11.

NO>>

GO TO 4.

CHECK CAC ELECTRIC WATER PUMP POWER SUPPLY-II

  1. Turn ignition switch OFF.

  2. Disconnect electric water pump relay harness connector.

  3. Turn ignition switch ON.

  4. Check the voltage between electric water pump relay harness connector and ground.

    + − Voltage
    Electric water pump relay
    Connector Terminal
    F103 9 Ground Battery voltage

Is the inspection result normal?

YES>>

GO TO 6.

NO>>

GO TO 5.

CHECK CAC ELECTRIC WATER PUMP POWER SUPPLY CIRCUIT-I

  1. Turn ignition switch OFF.

  2. Disconnect IPDM E/R harness connector.

  3. Check the continuity between IPDM E/R harness connector and electric water pump relay harness connector.

    IPDM E/R Electric water pump relay Continuity
    Connector Terminal Connector Terminal
    F35 66 F103 9 Existed

  4. Also check harness for short to power and short to ground.

Is the inspection result normal?

YES>>

INSPECTION END

NO>>

Repair or replace error-detected parts.

CHECK CAC ELECTRIC WATER PUMP POWER SUPPLY-III

  1. Turn ignition switch OFF.

  2. Check the voltage between electric water pump relay harness connector and ground.

    + − Voltage
    Electric water pump relay
    Connector Terminal
    F103 7 Ground Battery voltage

Is the inspection result normal?

YES>>

GO TO 8.

NO>>

GO TO 7.

CHECK FUSE

  1. Pull out 15A fuse (No. 98) from fuse and fusible link block.

  2. Check that 15A fuse is not blowing.

Is the fuse blown (open)?

YES>>

Replace the fuse after repairing the applicable circuit.

NO>>

Perform the trouble diagnosis for power supply circuit.

CHECK CAC ELECTRIC WATER PUMP POWER SUPPLY CIRCUIT-II

  1. Check the continuity between electric water pump relay and ground.

    Electric water pump relay — Continuity
    Connector Terminal
    F103 8 Ground Existed

  2. Also check harness for short to power.

Is the inspection result normal?

YES>>

GO TO 9.

NO>>

Repair or replace error-detected parts.

CHECK CAC ELECTRIC WATER PUMP POWER SUPPLY CIRCUIT-III

  1. Check the continuity between electric water pump relay and CAC electric water pump harness connector.

    Electric water pump relay CAC electric water pump Continuity
    Connector Terminal Connector Terminal
    F103 6 E36 2 Existed

  2. Also check harness for short to power and short to ground.

Is the inspection result normal?

YES>>

GO TO 10.

NO>>

Repair or replace error-detected parts.

CHECK ELECTRIC WATER PUMP RELAY

Check electric water pump relay. Refer to Component Inspection.

Is the inspection result normal?

YES>>

INSPECTION END

NO>>

Replace electric water pump relay.

CHECK CAC ELECTRIC WATER PUMP GROUND CIRCUIT

  1. Check the continuity between CAC electric water pump harness connector and ground.

    CAC electric water pump — Continuity
    Connector Terminal
    E36 4 Ground Existed

  2. Also check harness for short to power.

Is the inspection result normal?

YES>>

GO TO 12.

NO>>

Repair or replace error-detected parts.

CHECK CAC ELECTRIC WATER PUMP CONTROL CIRCUIT

  1. Disconnect ECM harness connector.

  2. Check the continuity between ECM harness connector and CAC electric water pump harness connector.

    ECM CAC electric water pump Continuity
    Connector Terminal Connector Terminal
    F72 32 E36 3 Existed 1
    39 1

  3. Also check harness for short to power and short to ground.

Is the inspection result normal?

YES>>

Replace CAC electric water pump. Refer to Removal and Installation.

NO>>

Repair or replace error-detected parts.

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