P0600

P0600 A/T CONTROL

System Description
These circuit lines are used to control the smooth shifting up and down of A/T during the hard acceleration/ deceleration.

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

ECM Terminals And Reference Value:

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

POSSIBLE CAUSE
- Harness or connectors
[The circuit between ECM and TCM (Transmission Control Module) is open or shorted.]

DTC Confirmation Procedure

NOTE: If "DTC Confirmation Procedure" has been previously conducted, always turn ignition switch OFF and wait at least 5 seconds before conducting the next test.

With CONSULT-II
1. Turn ignition switch ON.
2. Select "DATA MONITOR" mode with CONSULT-II.




3. Start engine, and rev engine more than 1,000 rpm once, then let it idle for more than 40 seconds.
4. If DTC is detected, go to "Diagnostic Procedure" below.




Overall Function Check
Use this procedure to check the overall function of the A/T control circuit. During this check, a DTC might not be confirmed.

Without CONSULT-II
1. Start engine.
2. Check voltage between
ECM terminal 26 and ground.

ECM terminal 27 and ground.

Voltage: 6 - 8 V

3. If NG, go to "Diagnostic Procedure" below.

EC-AT/C-01:

Wiring Diagram

Diagnostic Procedure

Step 1 - 3:

Step 4 - 5: