Corvette V8-5.7L VIN G (1997)
non-export vehicle with AUTOMATIC transmissions.
^
Inspect for installation of aftermarket wiring/relay that override the operation of the steering column lock.
^
Repair the ECL system per Service Manual procedure before proceeding with this functional test.
Important:
On 1997 and 1998 models built BEFORE 5/26/98, EL47728, Electronic Column Lock Tester, must be installed in the vehicle in the next step.
15.
If the vehicle is a 1997 or 1998 built before 5/26/98, disconnect the upper pink 32-way connector (C2) and the lower green 16-way connector (C3)
from the BCM. Attach the tester to the BCM and to the vehicle's wiring harness pink and green connectors.
16.
Connect the Tech 2 to the vehicle's DLC, power it up, and press ENTER. If necessary, refer to up-do-date Techline equipment user instructions.
17.
Select DIAGNOSTICS.
18.
Enter MODEL YEAR followed by PASSENGER CAR, followed by BODY.
19.
Select "Y" for the product line followed by the appropriate body style (coupe, convertible, etc.).
Important:
The test is only for vehicles with manual transmission and EXPORT vehicles with automatic transmissions. Do NOT use this test on
non-export vehicles with automatic transmissions.
20.
Select BODY CONTROL MODULE, followed by SPECIAL FUNCTIONS, followed by OUTPUT CONTROL followed by MISCELLANEOUS
TESTS.
21.
Select STEERING COL. LOCK FUNCTIONAL TEST.
Important:
The battery voltage must be maintained between 13.0 and 15.0 volts when performing the functional test in the next steps. Because the engine
is NOT to be running during the test, a battery charger must be connected to the vehicle in the next step. The battery charger must be operated
at a Low or Medium charge rate. Do NOT operate the charger on a "Fast Charge" or "HIGH" charge rate. Doing so may exceed the 15.0 volt
limit for the test.
22.
Open the hood and connect a battery charger to the vehicle. Operate the charger at a Low or Medium charge rate.
23.
Follow the on-screen instructions.
24.
Results of Functional Test:
^
If you could hear or feel any type of ratcheting, ticking or scraping sound (that wasn't heard earlier) when turning the steering wheel, the
steering column lock plate, retaining ring, and steering wheel retaining nut must be replaced. Proceed to the section of bulletin 04006B titled
"Lock Plate, Retaining Ring, and Nut Replacement."
^
If you could NOT hear or feel any type of ratcheting, ticking or scraping sound when turning the steering wheel, no further repairs are
required. Proceed to the next step.
25.
Press the EXIT button on the Tech 2 as necessary and disconnect it from the vehicle.
26.
Disconnect the battery charger from the vehicle and close the hood.
Important:
On 1997 and 1998 models built BEFORE 5/26/98, EL47728 Electronic Column Lock Tester, must be removed from the vehicle in the next
step. If it is not removed, the ECL and starter will not operate with the ignition key.
27.
If the vehicle is a 1997 or 1998 built before 5/26/98, disconnect the EL47728 from the BCM and the vehicle's wiring harness. Then reconnect the
vehicle's wiring harness to the BCM. Also, reassembly the BCM area of the vehicle at this time.
Important:
When using EL47728, some codes may be set in the BCM. These codes must be cleared in the next step.
28.
Using the Tech 2, check and erase any current and history codes that may be stored in the BCM.
Tech 2 Message Definitions
