need 98 corvette alarm diagram
Printed From: the12volt.com
Forum Name: Car Security and Convenience
Forum Discription: Car Alarms, Keyless Entries, Remote Starters, Immobilizer Bypasses, Sensors, Door Locks, Window Modules, Heated Mirrors, Heated Seats, etc.
URL: https://www.the12volt.com/installbay/forum_posts.asp?tid=75878
Printed Date: July 14, 2025 at 11:58 AM
Topic: need 98 corvette alarm diagram
Posted By: mainlyrich
Subject: need 98 corvette alarm diagram
Date Posted: April 08, 2006 at 2:00 AM
I need 98 corvette alarm diagram and bcm pinouts
Replies:
Posted By: 88vette
Date Posted: April 08, 2006 at 10:48 AM
Go to www.bulldogsecurity.com and look under wiring diagrams. Here is what it says: | | | | | | GM's VATS ANTI-THEFT System, Requires 791 Bypass Module |
| PART | COLOR | LOCATION | DIAGRAM | | 12 VOLT CONSTANT | RED (+) | IGNITION SWITCH HARNESS | | | STARTER | YELLOW (+) | IGNITION SWITCH HARNESS | | | STARTER 2 | N/A | | | | IGNITION 1 | PINK (+) | IGNITION SWITCH HARNESS | | | IGNITION 2 | N/A | | | | IGNITION 3 | N/A | | | | ACCESSORY /HEATER BLOWER 1 | ORANGE (+) | IGNITION SWITCH HARNESS | | | ACCESSORY /HEATER BLOWER 2 | N/A | | | | KEYSENSE | N/A | | | | PARKING LIGHTS ( - ) | N/A | | | | PARKING LIGHTS ( + ) | BROWN (+) | @ HEADLIGHT SWITCH | | | POWER LOCK | RED / BLACK (TYPE B) | IN EITHER DOOR HARNESS | | | POWER UNLOCK | ORANGE / BLACK (TYPE B) | IN EITHER DOOR HARNESS | | | LOCK MOTOR WIRE | GRAY (+) | IN DRIVERS DOOR HARNESS | | | DOOR TRIGGER | GRAY/BLACK(-) and BLACK/ WHITE(-) Use both, See NOTE *2 | @ BCM, See NOTE *4 | 10585_CORVETTE_(-) NEGATIVE DOOR PIN ISOLATION CIRCUIT.pdf | | DOMELIGHT SUPERVISION | GRAY/BLACK (-) | @ BCM, See NOTE *4 | | | TRUNK RELEASE | LIGHT BLUE (-) | @ BCM, See NOTE *4 | | | SLIDING POWER DOOR | N/A | | | | HORN | BLACK (-) | @ BCM, See NOTE *4 | | | TACH | WHITE | @ PCM, See NOTE *3 | | | WAIT TO START LIGHT | N/A | | | | BRAKE | WHITE (+) | @ SWITCH ABOVE BRAKE PEDAL | | | FACTORY ALARM DISARM | LIGHT GREEN (-) | INSIDE DRIVERS DOOR | | | ANTI-THEFT | See NOTE *1 | GM's VATS System @ Ignition Switch | |
| NOTES | NOTE *1 The VATS (Vehicle Anti Theft System) wire may be (2) thin YELLOW wires, (2)thin TAN wires or (2) thin WHITE wires, these wires are usually in a ORANGE or BLACK HEAT SHRINK TUBE, but at times are left out of the tube and ran by themselves up under the dash to the security module.
NOTE *2 The GRAY/BLACK (-) is for the DRIVERS DOOR and the BLACK/ WHITE (-) is for the PASSENGER DOOR, when connecting to an ALARM SYSTEM, us both wires and DIODE ISOLATE See DIAGRAM
NOTE *3 The PCM (Power Control Module) is located on the PASSENGER SIDE OF THE ENGINE COMPARTMENT. You will need to remove the right front tire and remove access panel in the Inner fender to get to the PCM. The TACH WIRE is located in the BLUE connector Pin 35.
NOTE *4 The BCM (Body Control Module) is located in the PASSENGER FOOTWELL under the CARPET |
Posted By: NowYaKnow
Date Posted: April 08, 2006 at 2:06 PM
Here's the pinouts for the 3 connectors at the BCM. I formatted the first one, then got lazy on the other two..
BCM Connector 1: 24 Pin
A1 - Not Used
A2 - Not Used
A3 WHT/BLK - Ignition Key Resistor Feed
A4 ORN - Fuse Output - Type III Fuse
A5 Not Used
A6 Not Used
A7 Not Used
A8 Not Used
A9 BLK/WHT Ground - Clean
A10 Not Used
A11 Not Used
A12 BLU DK - Interior Lamp Relay Output - Coil
B1 Not Used
B2 PPL/WHT Ignition Key Resistor Return
B3 GRY Rear Fog Lamp Relay Control (Export)
B4 DK GRN/WHT Fog Lamp Relay Output - Coil
B5 Not Used
B6 LT GRN Serial Data Signal - Class B - 10400 BAUD - Diagnostic To Body Module
B7 GRY ABSTRNS Relay Control
B8 Not Used
B9 LT BLU Trunk Release Relay Output - Coil
B10 BLK Horn Relay Output - Coil
B11 BRN Fuse Output - Ignition 3 - Type III Fuse
B12 Not Used
BCM Connector 2: 32 Pin
C1
DK BLU
38
Back Up Lamp Relay Feed - Coil
C2
GRY/BLK
745
Door Ajar Switch Signal - LT FRT
C3
WHT
193
RR Defogger Relay Output - Coil
C4
ORN
640
Fuse Output - BATT - Type III Fuse
C5
-
-
Not Used
C6
TAN
159
Key Reminder Switch Output
C7
-
-
Not Used
C8
-
-
Not Used
C9
PNK/BLK
109
Hood Ajar Switch Signal
C10
PPL
681
Rear Defogger Switch Signal - Secondary
C11
-
-
Not Used
C12
RED / BLK
744
Trunk Ajar Switch Signal
C13
-
-
Not Used
C14
LT GRN
80
Key Reminder Switch Signal
C15
LT GRN
1601
Steering Column Lock Signal
C16
-
-
Not Used
D1
BLK/WHT
746
Door Ajar Switch Signal - Right FRT
D2
-
-
Not Used
D3
-
-
Not Used
D4
ORN
192
Fog Lamp Switch Output - FRT
D5
LT BLU
187
Fog Lamp Switch Output - RR
D6
-
-
Not Used
D7
DK BLU
15
Turn Signal Lamp Feed - RT FRT
D8
LT BLU
14
Turn Signal Lamp Feed - LT FRT
D9
BLK
1576
Trunk Release Switch Output
D10
-
-
Not Used
D11
-
-
Not Used
D12
YEL
243
Fuse Output - Accessory - Type III Fuse
D13
PNK
1039
Fuse Output - Ignition 1 - Type III Fuse
D14
-
-
Not Used
D15
BRN/WHT
1571
Traction Control System Switch Signal
D16
ORN
1915
AAS Modulator Feed - LT RR
BCM Connector 3: 16 Pin
A1
-
-
Not Used
A2
BLK
150
Ground
A3
GRY/BLK
690
Courtesy Lamp Relay Output - Coil
A4
ORN
2540
Not Used
A5
-
-
Not Used
A6
PPL
1604
Steering Column Unlock Feed
A7
LT BLU/BLK
1914
AAS Modulator Output - Hold - LT RR
A8
ORN
1603
Steering Column Lock Feed
B1
BRN
1244
I/P Lamp Feed #2
B2
YEL
390
I/P Panel Lamp Feed - Tertiary
B3
-
-
Not Used
B4
YEL
183
Fog Lamp Indicator - FRT
B5
-
-
Not Used
B6
GRY
8
Instrument Panel Lamp Feed
B7
YEL/BLK
625
Vehicle Anti - Theft System Starter Enable Relay Output Coil
B8
TAN
159
Key Reminder Switch Output
Posted By: mainlyrich
Date Posted: April 08, 2006 at 5:24 PM
Thats guys this is exactly what I needed.
Posted By: 88vette
Date Posted: April 08, 2006 at 9:45 PM
Glad to be of help! 
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