Skylark V6-3100 3.1L VIN M SFI (1996)
PROM - Programmable Read Only Memory: All Technical Service Bulletins
SPS/FLASH EPROM - Programming
File In Section: 6E - Engine Fuel & Emission
Bulletin No.: 53-65-08
Date: January, 1996
INFORMATION
Subject:
SPS/FLASH EPROM Programming
Models:
1993-96 Passenger Cars and Trucks Applicable Reprogrammable Vehicles
This bulletin is being issued to assist technicians in reprogramming vehicles and should be used in conjunction with instructions provided on your
Techline Terminal and in your Techline Terminal User's Manual.
THE TECHLINE TERMINAL (T-20, T-50, T-60) HAS BEEN ABLE TO DO 1996 VEHICLE PROGRAMMING THROUGH THE DIRECT
METHOD SINCE 1996 VEHICLES HAVE BEEN AVAILABLE IN THE DEALERSHIPS/RETAIL FACILITIES. THE TECHLINE CD-ROM
TITLED DISC 13 CONTAINS THE SOFTWARE NEEDED TO PROGRAM ALL 1996 VEHICLES WITH A TECH 1 (REMOTE PROGRAMMING
METHOD).
SPS Tips
1.
BATTERY VOLTAGE SHOULD BE CHECKED. A FULLY CHARGED BATTERY IS NECESSARY BEFORE REPROGRAMMING
TAKES PLACE. THE VEHICLE BATTERY SHOULD NOT BE CONNECTED TO A BATTERY CHARGER DURING A PROGRAMMING
EVENT INCORRECT VOLTAGE COULD CAUSE PROGRAMMING AND/OR CONTROL MODULE FAILURE. During programming, the
control module depends on the battery as its sole source of power. Also during programming, the vehicle's components (i.e. blower motor) are set
to a default mode which may be turned on, placing additional draw on the vehicle's battery. If the voltage goes outside the specified range (11 to
14 volts) the controllers and the Techline equipment will stop communicating. If this happens, it could cause the control module to become
inoperable and require replacement.
2.
CHECK THE INTEGRITY OF THE TECH 1 CABLES, MAKE SURE THEY ARE NOT FRAYED, BROKEN OR TWISTED. Loss of
communication for any reason will require additional time in completing the reprogramming event.
3.
IF USING A TECH 1, YOUR MASS STORAGE CARTRIDGE (MSC) MUST BE UPDATED TO REFLECT THE MOST CURRENT
UPDATE OFFERED ON THE TECHLINE CD-ROM. DISC 13, 1995 WAS THE FIRST CD-ROM THAT HAD REMOTE PROGRAMMING
SUPPORT If your MSC is not updated to reflect the current software version on the Techline Terminal, in some situations the software will not be
capable of interpreting the information that is requested from the vehicle.
4.
T-100 TERMINALS (CAMS) ARE NOT CAPABLE OF PROGRAMMING OBD II VEHICLES THROUGH THE DIRECT METHOD. A
TECH 1 MUST BE USED (REMOTE METHOD) WHEN REPROGRAMMING WITH A T-100. The T-100 terminals communicate with
vehicles through a DLC (ALDL) card and cable found within the T-100's computer. The DLC (ALDL) card is not capable of communicating at the
new baud rate used with OBD II.
5.
PROGRAMMING IS NOT NEEDED IF THE CURRENT CALIBRATION IS THE SAME AS THE SELECTED CALIBRATION.
6.
IF PROGRAMMING A NEW CONTROL MODULE, YOU MUST REQUEST INFORMATION FROM THE NEW CONTROL MODULE.
The security information that is needed for a control module to be programmed is stored in the new control module. The security information must
be requested from the control module to be programmed. At that point, the control module can be successfully programmed. This requesting of
security information takes place in both the direct and remote methods. The request is automatic when using the direct method. Looking at the
calibration stored in the old controller may be helpful in selecting the calibration from the CD-ROM for the new controller.
7.
WHEN PROGRAMMING OBD II VEHICLES WITH A TECH 1 (REMOTE PROGRAMMING METHOD), A VEHICLE INTERFACE
MODULE (VIM) IS REQUIRED. The VIM allows the Tech 1 to communicate with the OBD II vehicles. The VIM is necessary for all other Tech
1 diagnostics on OBD II vehicles. VIMs are no longer on backorder. If you are interested in obtaining additional VIMs, call 1-800-GM-TOOLS
and ask for VIM kit part number 7000041.
8.
DISCONNECT THE TECH I AND VIM FROM THE VEHICLE BETWEEN RETRIEVING DATA AND PROGRAMMING THE VEHICLE.
If the VIM remains powered up after data is requested, a communication problem may result when the reprogramming function is performed.
9.
WHEN CONNECTING THE TECH 1 TO A TECHLINE TERMINAL (EXCEPT T-100 CAMS), ALWAYS CONNECT THE FLAT GRAY
R5232 CABLE FIRST AND THEN THE POWER ADAPTER. FAILURE TO DO SO COULD RESULT IN A LOSS OF INFORMATION
