DTC P0606 1GR-FE

DESCRIPTION

INSPECTION PROCEDURE

CHECK DTC

DTC P0606 ECM / PCM Processor

Description DTC P0606

The ECM continuously monitors its main and sub CPUs. This self-check ensures that the ECM is functioning properly. If outputs from the CPUs are different and deviate from the standard, the ECM will illuminate the MIL and store a DTC immediately.

DTC Code DTC Detection Condition Trouble Area
P0606 When either condition below is met:
  1. An ECM main CPU error.
  2. An ECM sub CPU error.
 ECM

Inspection procedure

HINT:

Read freeze frame data using the intelligent tester. Freeze frame data records the engine condition when malfunctions are detected. When troubleshooting, freeze frame data can help determine if the vehicle was moving or stationary, if the engine was warmed up or not, if the air fuel ratio was lean or rich, and other data from the time the malfunction occurred.

1.CHECK DTC

  1. Clear the DTC .

  1. Turn the ignition switch off.

  1. Disconnect the cable from the negative (-) battery terminal and wait for 1 minute.

  1. Connect the cable to the negative (-) battery terminal.

  1. Turn the ignition switch to ON.

  1. Check for DTC.

    OK:

    P0606 is not output.

  NG  
REPLACE ECM
 
OK  
   
CHECK FOR INTERMITTENT PROBLEMS