Chevrolet New Sail (2010). Manual — part 7

25

Chevrolet 2010 New Sail New Technical Training

- Learner's Manual

1. Engine Control Module Programming

2. Throttle Read-In Program

3. Anti-Theft System

After receiving an encrypted message, the engine control module will immediately read it and enter the

continued fuel supply password. Once an encrypted message is received and read, then the read-in program must
be executed again to change this password. Originally mounted in other vehicles, the engine control module might
have read other vehicles' continued fuel supply passwords and it needs to execute the read-in program after being
programmed in order to read the current vehicle's password.

4. Residual engine oil life: employ a diagnostic instrument

（if equipped） to reset "residual engine oil life"

to the recorded original percentage before module replacement.

5. Residual life of transmission oil: employ a diagnostic instrument

（if equipped）to reset "residual life of

transmission oil" to the recorded original percentage before module replacement.

Reprogramming of engine control module

z If the engine control module

（ECM）needs to be reprogrammed, please refer to "Service Programming

System

（SPS）"

Residual engine oil life: employ a diagnostic instrument

（if equipped）to reset "residual engine oil life" to

the recorded original percentage before module reprogramming.

Component replacement setting

The replacement of some components requires execution of a setting program to complete repair.

If any of the following components needs to be replaced, the "idle read-in program" must be executed.

z Throttle Body Assembly

z Engine Control Module

2.5.5 Idle Read-In Program

In the case of any of the following situations, program 1 and 2 must be executed:

z Accumulator cable is disconnected.

z Engine control module is disconnected or replaced.

z The fuse, transmitting the ignition 1 or the anode voltage of the accumulator to the engine control

module, is dismounted.

26

z Idle air control valve is dismounted or replaced.

z Idle air control system encounters trouble.

„ Program 1

1. Shut down all accessories.

2. Start the engine.

3. Maintain the engine in idle for 10 seconds.

4. Shut down the ignition switch for 1 minute.

5. Execute program 2

„ Program 2

z EMT

- Run the engine until the engine coolant temperature is above 85°C （185°F）.

- Maintain the engine in idle for 10 minutes.

- Switch on the air conditioning （if equipped） for 1 minute.

- Switch off the air conditioning （if equipped） for 1 minute.

- Pull the hand brake up and shift the transmission into drive （D）.

- Maintain the engine in idle for 1 minute.

- Switch on the air conditioning （if equipped） for 1 minute.

- Shut down the ignition switch. By now, the idle read-in program is complete.

z Manual Transmission

- Run the engine until the engine coolant temperature is above 85°C （185°F）.

- Maintain the engine in idle for 10 minutes.

- Switch on the air conditioning （if equipped） for 1 minute.

- Shut down the ignition switch. By now, the idle read-in program is complete.

27

Chevrolet 2010 New Sail New Technical Training

- Learner's Manual

28

2.6 Circuit Diagrams

2.6.1 Vehicle Speed Sensor Schematic Diagram

（1.2MT）