Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
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HOMESERVICE MANUALSCHEVROLET1993ASTRO VAN M V6-262 4.3L VIN ZREPAIR AND DIAGNOSISPOWERTRAIN MANAGEMENTTRANSMISSION CONTROL SYSTEMSTECHNICAL SERVICE BULLETINSALL TECHNICAL SERVICE BULLETINSA/T - ZERO ADAPTS WITH SCAN TOOL
1993 Chevrolet Astro Van M V6-262 4.3L VIN Z
A/T - Zero Adapts With Scan Tool
1993 Chevrolet Astro Van M V6-262 4.3L VIN ZSECTION A/T - Zero Adapts With Scan Tool
Group Ref.: 7 - Transmission
Bulletin No.: 477130
Date: August, 1994
INFORMATION
SUBJECT:
ZERO ADAPTS WITH SCAN TOOL
MODELS:
1993-95 BUICK ROADMASTER
1993-95 CADILLAC FLEETWOOD
1993-95 CHEVROLET CAMARO, CAPRICE, CORVETTE
1993-95 PONTIAC FIREBIRD
1993-95 CHEVROLET AND GMC TRUCK C/K, S/T MODELS AND M/L AND G VANS
1993-94 OLDSMOBILE BRAVADA
TRANSMISSION APPLICATIONS:
1993-95 HYDRA-MATIC 4L60-E (M30)
Some vehicles equipped with a HYDRA-MATIC 4L60-E transmission may have difficulty clearing the adaptive cells and could result in a check sum error.
To properly clear the adaptive cells, the following steps should be used:
1. Zero the adaptive cells.
2. Key off for 15 seconds.
3. Key on.
Bulletin No.: 477130
Date: August, 1994
INFORMATION
SUBJECT:
ZERO ADAPTS WITH SCAN TOOL
MODELS:
1993-95 BUICK ROADMASTER
1993-95 CADILLAC FLEETWOOD
1993-95 CHEVROLET CAMARO, CAPRICE, CORVETTE
1993-95 PONTIAC FIREBIRD
1993-95 CHEVROLET AND GMC TRUCK C/K, S/T MODELS AND M/L AND G VANS
1993-94 OLDSMOBILE BRAVADA
TRANSMISSION APPLICATIONS:
1993-95 HYDRA-MATIC 4L60-E (M30)
Some vehicles equipped with a HYDRA-MATIC 4L60-E transmission may have difficulty clearing the adaptive cells and could result in a check sum error.
To properly clear the adaptive cells, the following steps should be used:
1. Zero the adaptive cells.
2. Key off for 15 seconds.
3. Key on.
RENDER: 1.0x
NO RELATED
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.