GENERAL DESCRIPTION

TCU saves "LEARNING VALUE" and keeps it at certain value. Thorough this process, in order to "LEARNING VALUE" is protected from being erased at disconnecting battery cable and maintaining related components.

DTC DESCRIPTION

P0605 is set when 1)communication error between micro controller inside of ECM and EEP ROM is detected or 2)a different vesion of ECM is installed.

DTC DETECTING CONDITION

Item

Detecting Condition

Possible Cause

DTC Strategy

●

Check COMMUNICATION

●

Faulty TCM

Enable Conditions

●

COMMUNICATION ERROR WITH "EEPROM"

Threshold Value

●

Communication fail

Diagnostic Time

●

Detecting 20 times

Fail safe

Component Inspection
1.

Ignition "ON" ＆ Engine "OFF".

2.

Connect scan tool and select "Diagnostic Trouble Codes(DTCs)" mode.

3.

Using a scantool, Clear DTC.

4.

Using a "SCAN TOOL", Operate "LEARNING " Reset.

5.

Perform the "LEARNING"

6.

IG OFF ↔ IG ON (Repeat 2~3times), and then Monitor the "DTC"

7.

Is DTC Re-displayed ?

▶ Substitute with a known-good PCM/TCM and check for proper operation. If the problem is corrected, replace PCM/TCM as necessary and then Go to "Verification of Vehicle Repair" procedure.

▶ Fault is intermittent caused by poor contact in the sensor's and/or TCM(PCM)'s connector or was repaired and TCM(PCM) memory was not cleared. And Go to Component Inspection procedure.

METHOD OF LEARNING RESET

※IT IS NECESSARY TO LEARNING RESET, AFTER REPLACED TRANSMISSION

1. ERASING CONDITION

1) SELECT LEVER POSITION IS "P" OR "N"

2) VEHICLE SPEED 〓 0km/h

3) IGNITION "ON", ENGINE "OFF"

2. USING A SCAN TOOL, OPERATE "LEARNING" RESET

3. IG "ON" ↔ IG "OFF"(2~3 TIMES), AFTER ERASE

Verification of Vehicle Repair

After a repair, it is essential to verify that the fault has been corrected.

1.

Connect scan tool and select "Diagnostic Trouble Codes(DTCs)" mode

2.

Using a scantool, Clear DTC

3.

Operate the vehicle within DTC Enable conditions in General information.

4.

Are any DTCs present ?

▶ Go to the applicable troubleshooting procedure

▶ System performing to specification at this time.

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