Programming and Relearning
Service Programming System (SPS)For step by step programming instructions, please refer to the techline information system (TIS) terminal.
Review the information below to ensure proper programming protocol.
NOTE:
^ DO NOT program a control module unless you are directed by a service procedure or you are directed by a service bulletin. Programming a control module at any other time will not permanently correct a customer's concern.
^ It is essential that the Tech 2 and the TIS terminal are both equipped with the latest software before performing service programming system (SPS).
^ Some modules will require additional programming/setup events performed before or after programming.
^ Some vehicles may require the use of a CANDi module for programming.
^ Review the appropriate service information for these procedures.
^ DTCs may set during programming. Clear DTCs after programming is complete.
^ Clearing powertrain DTCs will set the Inspection/Maintenance (I/M) system status indicators to NO.
Ensure the following conditions are met before programming a control module:
^ Vehicle system voltage
^ There is not a charging system concern. All charging system concerns must be repaired before programming a control module.
^ Battery voltage is greater than 12 volts but less than 16 volts. The battery must be charged before programming the control module if the battery voltage is low.
^ A battery charger is NOT connected to the vehicle's battery. Incorrect system voltage or voltage fluctuations from a battery charger, may cause programming failure or control module damage.
^ Turn OFF or disable any system that may put a load on the vehicle's battery, such as the following components:
- Twilight sentinel
- Interior lights
- Daytime running lights (DRL)-Applying the parking brake, on most vehicles, disables the DRL system.
- Heating, ventilation, and air conditioning (HVAC) systems
- Engine cooling fans, radio, etc.
^ The ignition switch must be in the proper position. The Tech 2 prompts you to turn ON the ignition, with the engine OFF. DO NOT change the position of the ignition switch during the programming procedure, unless instructed to do so.
^ Make certain all tool connections are secure, including the following components and circuits:
^ The RS-232 communication cable port
^ The connection at the data link connector (DLC)
^ The voltage supply circuits
^ DO NOT disturb the tool harnesses while programming. If an interruption occurs during the programming procedure, programming failure or control module damage may occur.
^ DO NOT turn OFF the ignition if the programming procedure is interrupted or unsuccessful. Ensure that all control module and DLC connections are secure and the TIS terminal operating software is up to date. Attempt to reprogram the control module. If the control module cannot be programmed, replace the control module.
DTC Symptom Description - Vehicle Diagnostic Information
A DTC symptom is a 2-digit number which adds additional detail to a DTC. The DTC symptom provides additional information without requiring a large increase in the number of new DTCs.
DTC Symptom Categories
The DTC symptom is made up of 2 alphanumeric digits. The first digit following the DTC indicates the DTC symptom category. There are 16 possible categories available in the range of 0 through the letter F. Currently there are 8 categories in use, 0 through 7. These 8 categories together with their definitions are given.
DTC Symptom Subtypes
The second digit of the DTC symptom is the subtype of the DTC symptom. These subtypes and their categories, together with their definitions, are given in the following table. DTC symptom 00 is a special case. If 00 displayed, only the base code number and its description apply. Information regarding the fault will be provided in the code setting criteria.
Example
Part 1:
Part 2:
Part 3:
The DTC symptoms associated with each DTC provide more information about the fault that caused that DTC. An example of a DTC displayed can be B1451 05 where the B1451 is the DTC, and 05 after the space represents the DTC symptom. While the DTC indicates that the fault is in the accessory power circuit, this DTC symptom indicates the circuit is shorted to battery or open. Another possible symptom for this code is B1451 02, where B1451 indicates the accessory power circuit, and 02 indicates the circuit is shorted to ground.