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.
SYS.OK|MANUAL.DB● LIVE
HOMESERVICE MANUALSCHEVROLET1998ASTRO VAN 2WD V6-4.3L VIN WREPAIR AND DIAGNOSISPOWERTRAIN MANAGEMENTCOMPUTERS AND CONTROL SYSTEMSTRANSMISSION POSITION SENSOR/SWITCHTECHNICAL SERVICE BULLETINSA/T - PARK/NEUTRAL SWITCH CONNECTOR CANNOT BE REMOVED
1998 Chevrolet Astro Van 2WD V6-4.3L VIN W
A/T - Park/Neutral Switch Connector Cannot Be Removed
1998 Chevrolet Astro Van 2WD V6-4.3L VIN WSECTION A/T - Park/Neutral Switch Connector Cannot Be Removed
File In Section: 7 - Transmission
Bulletin No.: 83-71-10
Date: May, 1998
Subject:
Park (Neutral Position Switch Connector Cannot be Removed (Replace Switch and Connectors)
Models:
1997-98 Chevrolet Corvette
1995-98 Chevrolet and GMC S/T Models
1996-98 Chevrolet and GMC M/L, P Models
1996-99 Chevrolet and GMC C/K, G Models
1996-98 Oldsmobile Bravada
Condition
Technicians may experience difficulty in removing the connectors from the Park/Neutral Position Switch, usually when trying to remove the switch during transmission service. In rare cases, customers may also report switch related electrical conditions, such as improper or no shift indication, or no back-up light operation.
Cause
High ambient heat may cause the sealing compound in the switch to melt and flow into the connectors, sealing the connectors to the switch. This normally causes no customer conditions, but may cause an open circuit in rare cases.
Correction
In many cases, the switch can be removed and reinstalled without removing the connectors. If the switch is being removed as part of transmission service, and there are no switch related conditions, the switch can simply be reinstalled.
Some applications have a mounting bolt behind the connectors. The switch will have to be removed and will probably be damaged in the process.
The connector pigtails use wires which are all the same color. Use the old connector as a pattern to insure that the new wires are connected to the harness correctly.
Important:
This switch is in a wet area. It is very important to solder the wires and use heat-shrink tubing to insure water-tight connections.
Parts Information
P/N Description
12450016 Switch
15305925 4-Way Connector Assembly
15305887 7-Way Connector Assembly
Parts are currently available from GMSPO.
Warranty Information
For vehicles repaired under warranty, use the table.
Bulletin No.: 83-71-10
Date: May, 1998
Subject:
Park (Neutral Position Switch Connector Cannot be Removed (Replace Switch and Connectors)
Models:
1997-98 Chevrolet Corvette
1995-98 Chevrolet and GMC S/T Models
1996-98 Chevrolet and GMC M/L, P Models
1996-99 Chevrolet and GMC C/K, G Models
1996-98 Oldsmobile Bravada
Condition
Technicians may experience difficulty in removing the connectors from the Park/Neutral Position Switch, usually when trying to remove the switch during transmission service. In rare cases, customers may also report switch related electrical conditions, such as improper or no shift indication, or no back-up light operation.
Cause
High ambient heat may cause the sealing compound in the switch to melt and flow into the connectors, sealing the connectors to the switch. This normally causes no customer conditions, but may cause an open circuit in rare cases.
Correction
In many cases, the switch can be removed and reinstalled without removing the connectors. If the switch is being removed as part of transmission service, and there are no switch related conditions, the switch can simply be reinstalled.
Some applications have a mounting bolt behind the connectors. The switch will have to be removed and will probably be damaged in the process.
The connector pigtails use wires which are all the same color. Use the old connector as a pattern to insure that the new wires are connected to the harness correctly.
Important:
This switch is in a wet area. It is very important to solder the wires and use heat-shrink tubing to insure water-tight connections.
Parts Information
P/N Description
12450016 Switch
15305925 4-Way Connector Assembly
15305887 7-Way Connector Assembly
Parts are currently available from GMSPO.
Warranty Information
For vehicles repaired under warranty, use the table.
RENDER: 1.0x
NO RELATED
Recommended Tools & Savings
Use the Manual With the Right Hardware
Pair factory procedures with proven DIY tools so the instructions are easier to execute.
Affiliate disclosure: We may earn a commission at no extra cost to you.
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.