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 Service & Repair Manual. Cylinder Head Overhaul
It is usually recommended to send
head to machine shop for complete overhaul.
Cylinder head must be cool before
removing it from engine. Cylinder head warpage can result if a warm or hot
cylinder head is removed.
Place clean shop towels over exposed
e ...
Anti-Lock Brake System, Inspection
