Chevrolet Cobalt Service & Repair Manual: Traction Control System, Inspection
| A visual inspection must always
be performed to confirm the presence of aftermarket components, potential
collision damage, or areas of concern. |
| The test can be performed with
a dynamometer or supporting vehicle on appropriate lift. Inspection must
be completed within 20 seconds after pressing accelerator pedal or TCL system
will stop functioning (fail-safe). |
| 1. |
Visually inspect for obvious signs
of mechanical or electrical damage. |
| 2. |
If an obvious cause for an observed
or reported concern is found, correct cause if possible before proceeding. |
| 3. |
Connect a suitably programmed scan
tool to vehicle DLC. |
| 4. |
Carry out network test. |
| 5. |
Clear continuous DTCs and carry out
self-test diagnostics for ABS/Traction Control module. |
| 6. |
Start and idle vehicle. |
| 7. |
Press TCL mode switch to ON position. |
| 8. |
Place front wheels on dynamometer rollers
(if available). Ensure all safety procedures are followed when using
dynamometer. |
| 9. |
If dynamometer is not available, lift
and support vehicle. |
| 10. |
Place shift selector in drive D position. |
| 11. |
When depressing accelerator pedal,
determine if engine RPM is suppressed. |
| 12. |
If TCL indicator light illuminates
and engine speed is suppressed, system is functioning properly. |
|
A visual inspection must always
be performed to confirm the presence of aftermarket components, potential
collision damage, or areas of concern.
The ABS module is self moni ...
See also:
Chevrolet Cobalt Owners Manual. Enhanced Traction System (ETS)
The vehicle may have an Enhanced Traction System
(ETS) that limits wheel spin. This is especially useful in
slippery road conditions. The system operates only if it
senses that one or both of the front wheels are spinning
or beginning to lose traction. When this happens, the
system reduces engi ...
Anti-Lock Brake System, Inspection
