P0600

System Description
This circuit line (LAN) is used to control the smooth shifting up and down of A/T during the hard acceleration/deceleration.

Pulse signals are exchanged between ECM and TCM (Transmission Control Module).

Be sure to erase the malfunction information such as DTC not only in TCM but also ECM after the A/T related repair.

On Board Diagnosis Logic
Malfunction is detected when ECM receives incorrect voltage from TCM (Transmission Control Module) continuously.

Possible Cause
- Harness or connectors
[The communication line circuit between ECM and TCM (Transmission Control Module) is open or shorted.]
- TCM
- Dead (Weak) battery

DTC Confirmation Procedure

NOTE: If "DTC Confirmation Procedure" has been previously conducted, always turn ignition switch "OFF" and wait at least 10 seconds before conducting the next test.

TESTING CONDITION:
Before performing the following procedure, confirm that battery voltage is more than 10.5 V at idle.




WITH CONSULT-II
1. Turn ignition switch "ON".
2. Select "DATA MONITOR" mode with CONSULT-II.
3. Start engine and let it idle for at least 2 seconds.
4. If DTC is detected, go to "Diagnostic Procedure" below.

EC-AT/C-01:

EC-AT/C-01 - Connector View:

Wiring Diagram

ECM TERMINALS AND REFERENCE VALUE MEASURED BETWEEN EACH TERMINAL AND 48.:

Diagnostic Procedure

Diagnostic Procedure Step 1:

Diagnostic Procedure Step 2:

Diagnostic Procedure Step 3: