Savana 1/2 Ton Van V8-5.7L VIN R (2001)
7. Press the Alternative Fuels ECM into the mounting bracket.
8. Position the coolant recovery reservoir and install the mounting bolt.
Tighten
Tighten the bolt to 11 N.m (97 lb in).
CAUTION: Refer to Battery Disconnect Caution in Service Precautions.
9. Install the negative battery cable.
10. Program the ECM with the correct Alternative Fuels software if necessary.
Before Programming a Control Module
IMPORTANT: Do NOT program a control module unless you are directed by a service procedure or you are directed by a General Motors
Corporation service bulletin. Programming a control module at any other time will not permanently correct a customers concern.
Ensure the following conditions are met before programming a control module:
^
Vehicle system voltage
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There is no charging system concern. All charging system concerns must be repaired before programming a control module.
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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.
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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.
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Turn OFF or disable any system that may put a load on the vehicle's battery.
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Twilight sentinel
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Interior lights
^
Daytime running lights (DRL)-Applying the parking brake, on most vehicles, disables the DRL system.
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Heating, ventilation, and air conditioning (HVAC) systems
^
Engine cooling fans etc.
^
The ignition switch is in the proper position. The scan tool 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.
^
All tool connections are secure.
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RS-232
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The connection at the data link connector (DLC) is secure.
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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.
Remote Programming
1. Turn OFF the ignition.
2. Install the Tech 2 to the data link connector (DLC).
3. Turn ON the ignition, with the engine OFF.
4. Turn OFF all vehicle accessories.
5. With the Tech 2, select Service Programming.
6. Identify vehicle information as requested by the Tech 2.
7. Select the type of module you are programming.
