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Home >> Infiniti >> 2023 >> QX60 Pure, AWD >> Repair and Diagnosis >> Engine Performance >> Testing & Diagnosis >> Engine Control System (DTC/Circuit Diagnosis) (4 Of 6) >> DTC/Circuit Diagnosis >> DTC P06E6: Internal Control Module >> DTC Description
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DTC Description

DESCRIPTION 

ECM supplies a voltage of 5 V to some of the sensors systematically divided into 3 groups, respectively. Accordingly, when a short circuit develops in a sensor power source, a malfunction may occur simultaneously in the sensors belonging to the same group as the short-circuited sensor.

Sensor power supply 1

NOTE: SYMBOL If sensor power supply 1 circuit is malfunctioning, DTC P0643 and P06B0 is displayed.

Sensor power supply 2

Sensor power supply 3

DTC DETECTION LOGIC 

DTC CONSULT screen terms (Trouble diagnosis content) DTC detection condition
P06E6 11 Internal control module (Internal Control Module Knock/Combustion Vibration Sensor Processor 1 Performance) Diagnosis condition Ignition switch ON
Signal -
12 Threshold Malfunction in the sensor power supply voltage of ECM internal circuit
Diagnosis delay time 5 seconds

POSSIBLE CAUSE 

FAIL-SAFE 

Not applicable

DTC CONFIRMATION PROCEDURE 

  1. PRECONDITIONING 
    1. TESTING CONDITION: Before performing the following procedure, confirm that battery voltage is 11 V or more with ignition switch ON.

    >>

    GO TO 2.

  2. PERFORM DTC CONFIRMATION PROCEDURE 
      1. Turn ignition switch ON and wait at least 10 second.
      2. Turn ignition switch OFF and wait at least 10 seconds.
      3. Repeat step 1 and 2 for 2 times.
      4. Turn ignition switch ON.
      5. Check the DTC.

    Is the DTC 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