Description

all automatic transmission, 1st design: VIN ending in 00001 to 27372, alarm switch located in driver side front fender & alarm horn located behind driver side rear fender

Additional information

Lectric Limited Part #: VMA7700AT
OEM Part #: 08916432
WebID Part #: id-vma7700at-0001
Weight: 4.9 lbs

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Make	Model	Years
CHEVROLET	CORVETTE	1977

TECH NOTES:

Distinguishing between 1st and 2nd Design 1977 Corvettes.

Shown below is information regarding 1977 (2nd Design) Corvettes as shown in Chevrolet Dealer Service Bulletin 77-I-38, Section XII, Dated May 1977:

Subject: Anti-Theft Alarm System Interim Modifications

Several modifications to the 1977 Corvette anti-theft alarm system were introduced into production effective March 21, 1977 with VIN 1Z37X7S427373.

(2nd Design) modifications are as follows:
- The actuating switch for the alarm system is no longer located on the left (driver's side) front fender. It has been incorporated into the left front door lock and must be activated by locking this door with the key from the outside of the vehicle. This is the *ONLY* way the alarm can be set. Turning the inside knob to the locked position when exiting the vehicle *WILL NOT* activate the alarm system.

- The anti-theft alarm system horn has been moved from the left (driver's side) rear inner fender to the far left side (driver's side) of the engine compartment dash panel.

- The anti-theft alarm system flasher assembly is now located on the console trim plate, rather than the rear compartment underbody panel.

- The new anti-theft alarm system wiring diagram has been modified to reflect these changes.

Chevrolet Motor Division
General Motors Corporation

CONNECTS TO:
- Air Conditioning Harness Connection (with A/C)
- Alarm System Flasher
- Alarm System Relay
- Brake Light Switch
- Bulkhead Connector (passes through firewall)
- Center Gauge Cluster
- Cigarette Lighter
- Cigarette Lighter Ground
- Courtesy Light (driver & passenger side)
- Courtesy Light Switch (driver & passenger side)
- Courtesy Light Timer Connection
- Courtesy Light Timer Harness Connection
- Fuse Block
- Ground (to hinge pillar inner reinforcement)
- Hazard Flasher (fuse block)
- Headlight Dimmer Switch
- Headlight Switch
- Headlight Warning Buzzer
- Heater & A/C Control Panel Light Harness Connection
- Heater Harness Connection (without A/C)
- Hi-Beam Light
- Horn Relay
- Ignition Switch
- Instrument Cluster Ground
- Instrument Lights
- Neutral Safety/Backup Light Switch Connection
- Parking Brake Warning Light Switch
- Radio
- Rear Body Harness Connection
- Seat Belt & Key Warning Buzzer
- Seat Belt Buckle Connection (driver side)
- Shift Plate Indicator Light (automatic transmission)
- Tachometer
- Turn Signal Flasher
- Turn Signal Light (left & right side)
- Turn Signal Switch Connection
- Windshield Wiper & Washer Switch