Contents Wiring diagrams Section: Automatic Trans All sections

Shift Interlock System: Other Chevrolet Aveo I facelift

Important Preliminary Checks Before Starting

Perform the Diagnostic System Check - Vehicle before using the Symptom Tables in order to verify that all of the following are true

Intermittent

Faulty electrical connections or wiring may be the cause of intermittent conditions. Refer to Testing for Intermittent Conditions and Poor Connections .

Shift Lever Does Not Move with Brake Pedal Depressed

StepActionYesNo
Schematic Reference: Shift Lock Control Schematics (Notchback) or Shift Lock Control Schematics (Except North American (Hatchback)) or Shift Lock Control Schematics (North American (Hatchback))
1Turn the ignition ON, with the engine OFF. Press and hold the brake pedal. Attempt to move the shift lever out of the PARK position. Does the shift lever move out of the PARK position?System OKGo to Step 2
2Turn the ignition OFF. Disconnect the brake switch. Turn the ignition ON, with the engine OFF. Press and hold the brake pedal. Attempt to move the shift lever out of the PARK position. Does the shift lever move out of the PARK position?Go to Step 4Go to Step 3
3Turn the ignition OFF. Disconnect the BTSI (Brake Transfer Shift Interlock) solenoid. Turn the ignition ON, with the engine OFF. Press and hold the brake pedal. Attempt to move the shift lever out of the PARK position. Does the shift lever move out of the PARK position?Go to Step 6Go to Step 5
4Inspect for poor connections at the brake switch. Check for the short to battery in the brake switch supply voltage circuit. Do you find and correct the condition?Go to Step 11Go to Step 7
5Inspect for poor connections at the BTSI solenoid. Do you find and correct the condition?Go to Step 11Go to Step 8
6Repair the short to battery in the BTSI solenoid supply circuit. Is the repair complete?Go to Step 11
7Replace the brake switch. Is the replacement complete?Go to Step 11
8Replace the BTSI solenoid. Is the problem found?Go to Step 9Go to Step 11
9Check for the key interlock system. If needed, repair the key interlock system circuit. Is the problem found?Go to Step 10Go to Step 11
10Replace the instrument panel fuse box which contains the multifunction module. Is the repair complete?Go to Step 11
11Operate the system in order to verify the repair. Did you find and correct the condition?System OKGo to Step 1

Shift Lever Can Be Moved without Brake Pedal Depressed

StepActionYesNo
Schematic Reference: Shift Lock Control Schematics (Notchback) or Shift Lock Control Schematics (Except North American (Hatchback)) or Shift Lock Control Schematics (North American (Hatchback))
1Turn the ignition ON, with the engine OFF. Apply the parking brake and block the wheels. Attempt to move the shift lever out of the PARK position without pressing the brake pedal. Does the shift lever move out of the PARK position without pressing the brake?Go to Step 2System OK
2Turn the ignition OFF. Connect a test lamp between the battery positive voltage supply circuit at the brake switch and a good ground. Turn the ignition ON, with the engine OFF. Does the test lamp illuminate?Go to Step 3Go to Step 7
3Check for the wiring harness circuit between the brake switch terminal 2 and a good ground with a test lamp. Does the test lamp illuminate?Go to Step 8Go to Step 4
4Connect a test lamp between the ignition 1 voltage supply circuit at the shift lock solenoid and a good ground. Does the test lamp illuminate?Go to Step 5Go to Step 9
5Check for the wiring harness circuit between the shift lock solenoid terminal 3 and a good ground with a test lamp. Does the test lamp illuminate?Go to Step 6Go to Step 10
6Check for the wiring harness circuit between the P position switch terminal 2 and a good ground with a test lamp. Does the test lamp illuminate?Go to Step 15Go to Step 11
7Repair the open in the battery positive voltage supply circuit of the brake switch. Is the repair complete?Go to Step 17
8Check for poor connections at the brake switch. Do you find and correct the condition?Go to Step 17Go to Step 12
9Repair the open in the ignition 1 voltage supply circuit of the shift lock solenoid. Is the repair complete?Go to Step 17
10Check for poor connections at the shift lock solenoid. Do you find and correct the condition?Go to Step 17Go to Step 13
11Check for poor connections at the P position switch. Do you find and correct the condition?Go to Step 17Go to Step 14
12Replace the brake switch. Is the repair complete?Go to Step 17
13Replace the shift lock solenoid. Is the repair complete?Go to Step 17
14Replace the P position switch. Is the repair complete?Go to Step 17
15Inspect the key interlock system. If needed, repair the key interlock system circuit. Is the problem found?Go to Step 16Go to Step 17
16Replace the instrument panel fuse box which contains the multifunction module. Is the repair complete?Go to Step 17
17Operate the system in order to verify the repair. Did you find and correct the condition?System OKGo to Step 1