Mechanics

WHERE IS THE THEFT DETERANT MODULE LOCATED?

1997 Pontiac Bonneville • 125,000 miles

My car doesn't start I by-passed the VATS system but it still want start. I was told I need to replace the Theft Deterrant Module in order tostart my car. But I don't know where it's located. Also does it need to be reprogrammed after I replace it?
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Tonyd235
December 16, 2011.




PASS key decoder module is located behind the right side of the dash. The body control module is located in the same place, on the multi-use bracket.

My reference doesn't list a security system module.


Rivermikerat
Dec 16, 2011.
Thank for helping me my problem. But I am still having trouble with the same car 97 Pontiac Bonneville. I need to remove the BCM ( Body Control Module). I have located it, but I am having trouble removing it in order to get the part number to get the replacement. PLease tell me how to remove it without causing any damage? Thanks


Tiny
Tonyd235
Dec 17, 2011.
My reference doesn't list any specific instructions for removing the BCM. I would presume this means that there is a strap securing it to the multi-use bracket and that the bracket is bolted to a dash frame member. The strap is probably secured using 2 bolts or nuts.


Rivermikerat
Dec 29, 2011.
I finally was able to remove the BCM it was actually very simple! Can you tell me where the anti-theft module is located? Or the TCM (theft control module? Even though I had a professional to bypass the VATS system is it possible he got it wrong, because my security light still flashes. And everything that I have read tells me that my problem is dealing with security system and having the right OHM. Do you have how to video? I am willing to pay but I would like to pay for information that's going to help me figure out and solve my problem. Please don't miss understand me I really appericate all of your assistance
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Tiny
Tonyd235
Dec 29, 2011.
According to my reference, the BCM is also called the MALL-Multi-functional Alarm, Lock and Lighting Module.
BODY CONTROL MODULE -1997 Pontiac Bonneville SE
Page 1 of 7
ARTICLE BEGINNING

DESCRIPTION & OPERATION

WARNING: Deactivate air bag system before performing any service
operation. See AIR BAG RESTRAINT SYSTEM article. DO NOT
apply electrical power to any component on steering column
without first deactivating air bag system. Air bag may deploy.
NOTE: Body Control Module (BCM) may also be referred to as Multifunction Alarm, Lock & Lighting (MALL) module.
The Multifunction Alarm, Lock and Lighting (MALL) controls different body systems by obtaining information from various sensors and switches, then using this information to command the output to
each body system. MALL module provides a set of internal service diagnostic features to assist technician in troubleshooting electrical short conditions that may affect MALL. If electrical short
occurs during vehicle operation, MALL module stores history codes. These codes can be accessed by entering MALL module diagnostic mode. After providing history codes, MALL module enters
Input/Output (I/O) mode. I/O mode enables verification that inputs to MALL module are functioning properly.
COMPONENT LOCATIONS

COMPONENT LOCATIONS Component
Multifunction Alarm, Lock & Lighting
Module (MALL)
Instrument Panel Fuse Block RH Rear Junction Block
(1) Multifunction Alarm, Lock and Lighting (MALL) module may also be referred to as Body Control Module (BCM).
Location Under Right Side Of Instrument Panel, Near
Glove Compartment Attached To Left Front Door Pillar
Under Right Rear Seat Cushion
(1)

TROUBLE SHOOTING

NOTE: For more information and testing on Multifunction Alarm, Lock and
Lighting (MALL) functions and related systems, see appropriate INSTRUMENT PANEL article.
? INSTRUMENT PANEL - Aurora & Riviera - 1997 ? INSTRUMENT PANEL - Aurora - 1998
? INSTRUMENT PANEL - Riviera - 1998
? INSTRUMENT PANEL - Bonneville - 1997 ? INSTRUMENT PANEL - Bonneville - 1998

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Page 2 of 7
? INSTRUMENT PANEL - Eighty-Eight, LSS & Regency - 1997 ? INSTRUMENT PANEL - Eighty-Eight, LSS & Regency - 1998 ? INSTRUMENT PANEL - LeSabre - 1997
? INSTRUMENT PANEL - LeSabre - 1998
PRELIMINARY CHECKS

1.
Check PWR DR LK fuse (15- or 20-amp) and INT LP (20-amp) fuse in RH rear junction block. See WIRING DIAGRAMS.
2. Check for poor terminal contacts at component and harness connectors.
3.
Check for proper installation of aftermarket electronic equipment which may affect other systems.
Check for broken or partially broken wire inside insulation which could cause system malfunction but check good in continuity/voltage check.
4.
SELF-DIAGNOSTICS SYSTEM

ENTERING DIAGNOSTIC MODE

1.
Turn ignition switch to ON position. Depress and hold power door UNLOCK switch. Cycle headlights 6 times within 20 seconds of depressing UNLOCK switch. Release power door lock
UNLOCK switch.
MALL module will sound stored history codes by audible bongs. Number of bongs correspond to history code number. FASTEN BELTS indicator flashes with each bong. MALL module
will cycle through history codes 3 times, pausing 2 seconds between cycles. If no history codes exist, MALL will immediately enter input/output mode. History codes may be erased by
holding power door unlock switch for four seconds. See MALL HISTORY CODES table for identification and description. To exit diagnostic mode, turn ignition switch to OFF position or
accelerate vehicle above 8 MPH.
2.
MALL HISTORY CODES History Code
1 2
3
Affected Circuit FASTEN BELTS indicator (SBTELL)
Battery Protection (PBATT) Courtesy Lights (CTSY)
INPUT/OUTPUT (I/O) MODE

While in Input/Output mode, each input to MALL module can be tested by activating/deactivating input device (door lock switch, seat belt switch, etc.). Each input transition is acknowledged with a
single bong with a simultaneous flash of FASTEN BELTS indicator. See MALL INPUTS/OUTPUTS table for inputs and outputs that should be checked.
Keyless Entry (RKE) I/O Mode Feedback

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When using RKE transmitter, audible feedback is different when activating MALL inputs power door lock switch, transaxle gear selector and keyless entry unlock. Each input is acknowledged with
2 bongs with simultaneous flashes of FASTEN BELTS. On Bonneville, no bongs will occur when shifting into Park position, due to ignition-OFF door unlock feature.
MALL INPUTS/OUTPUTS FUNCTION/FEATURE
ACTIVATE/DEACTIVATE Park Brake &/Or Instrument Cluster
Warning Interior Light Switches
Dome Light Switch Left & Right Front Door Latch (Jamb)
Switch Power Door Lock & Unlock Switch
Gear Selector Interior Light Switch
Headlight Switch
Auxiliary Chime
Interior Lights Dome Light
Door Latch (Jamb) Switches
Power Door Lock
Automatic Door Lock & Door Lock Battery Protection
Light On Reminder Chime
Fasten Seat Belts Chime FASTEN BELTS Indicator
Turn Signal On Reminder Chime Trunk Lid Ajar Light
Driver's Seat Belt Switch
Left & Right Turn Signal Trunk Lid Latch Switch
SYSTEM TESTS

CAUTION: To prevent damage to terminals, Connector Test Adaptor Kit (J-
35616-A) must be used whenever a diagnostic procedure requires checking or probing terminals. To locate and identify terminals,
see WIRING DIAGRAMS.
SYSTEM CHECK

1.
Check operation of power door lock system. Move left door lock/window switch to LOCK, then UNLOCK position. Move right door lock/window switch to LOCK, then UNLOCK
position. When each switch is activated, all doors should lock and remain locked until UNLOCK switch is depressed, which should unlock all doors. If some door lock functions do
not operate as specified, see appropriate POWER DOOR LOCKS article: ? POWER DOOR LOCKS - "G" Body
? POWER DOOR LOCKS - "H" Body
If all power door lock functions are inoperative, see ALL MALL FUNCTIONS INOPERATIVE.
2.
2) Check operation of Remote Keyless Entry (RKE) system. See REMOTE KEYLESS ENTRY SYSTEM DIAGNOSTIC CHECK table. If some RKE functions do not operate as
specified, see REMOTE KEYLESS ENTRY SYSTEM article: ? REMOTE KEYLESS ENTRY SYSTEM - "G" Body

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? REMOTE KEYLESS ENTRY SYSTEM - "H" Body
If all RKE functions are inoperative, see ALL MALL FUNCTIONS INOPERATIVE.
REMOTE KEYLESS ENTRY DIAGNOSTIC CHECK Action
Depress Door LOCK Button
Depress Door UNLOCK Button Once
Depress Door UNLOCK Button Twice
Within 4 Seconds
Depress TRUNK Release Button
Depress PANIC Button
Depress Any Button
Result All Doors Should Lock
Driver's Door Should Unlock
(1)

(1)
All Doors Should Unlock
(1)

(1)
Rear Trunk Lid Should Open Horn Should Sound & Lights Should Flash
Selected Function Should Actuate Doors Should Lock When Shifted Out Of Park &
Unlock When Shifted Into Park

(1)

(1)

Shift Transmission In & Out Of Park
(1) Using Remote Keyless Entry (RKE) transmitter.
3.
Check operation of interior lighting system. See INTERIOR LIGHTING SYSTEM DIAGNOSTIC CHECK table. If some interior lighting functions do not operate as specified,
see WIRING DIAGRAMS. If all interior lighting functions are inoperative, see ALL MALL FUNCTIONS INOPERATIVE.
INTERIOR LIGHTING SYSTEM DIAGNOSTIC CHECK Action
Depress UNLOCK Button On RKE Transmitter
With All Doors Closed, Move Interior Light Switch To ON Position
Result Courtesy Lights Should Illuminate For 40
Seconds
Courtesy Lights Should Illuminate
Courtesy Light Should Illuminate For 25 Seconds, Then Fade Out
All Interior Lights Should Illuminate For 25
Seconds, One At A Time
Courtesy
Open & Close Each Door One At A Time
With All Doors Closed, Lift Each Door Handle
Close All Doors. Turn Ignition Switch To RUN, then OFF Position. Remove Key
(1)
, Then Fade Out Light Should Illuminate For 25
Seconds, Then Fade Out Cigarette Lighter(s) Should Pop Up & Heating
Element Should Be Red Hot Glove Box Light Should Illuminate
Rear Compartment Light Should Illuminate
Depress Cigarette Lighter(s)
Open Glove Box
Open Rear Compartment Lid
Move Headlight Switch To Park Position,
Open Engine Compartment Lid Open Each Vanity Mirror
(1) On Bonneville, Eighty Eight, LeSabre, LSS and Regency only (with remote keyless entry, illuminated entry and retained accessory power).
Bonneville, LeSabre and Riviera only.
Engine Compartment Light Should Illuminate
(2)

Vanity Mirror Lights Should Illuminate

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(2)
4.
Check audible warnings system. See AUDIBLE WARNING SYSTEM DIAGNOSTIC CHECK table. If some audible warning functions do not operate, see WIRING DIAGRAMS.
If all audible warning functions are inoperative, see ALL MALL FUNCTIONS INOPERATIVE.
1.

AUDIBLE WARNING SYSTEM DIAGNOSTIC CHECK Action
Result Seat Belt Chime Should Sound For 4-8
Seconds. Seat Belt Indicator Should Illuminate For 70 Seconds.
Seat Belt Chime Does Not Sound. Seat Belt Indicator Should Illuminate For 5 Seconds
(Bulb Check)
Close Left Front Door. Turn Ignition Switch To RUN Position. Disconnect Seat Belt
Turn Ignition Switch To OFF Position. Buckle Seat Belt. Turn Ignition Switch To
RUN Position
Turn Ignition Switch To OFF Position. With Key In Ignition Switch, Open Left Front
Door
Remove Key From Ignition Switch
Turn Headlight Switch To Park Position Turn Headlight Switch To Off Position
Close Left Front Door. Start Engine. Turn Left Or Right Turn Signal On. Drive Vehicle
3/4 Mile
Apply Parking Brake. Drive Vehicle About 40 Feet
Key-In-Ignition Chime Should Sound
Key-In-Ignition Chime Should Not Sound Lights On Chime Should Sound
Lights On Chime Should Not Sound
Turn Signal Chime Sounds After Driving 3/4 Mile
Parking Brake On Chime Should Sound
ALL MALL FUNCTIONS INOPERATIVE

Perform body control module diagnostic system check. See SYSTEM CHECK step.
Disconnect MALL module Black, 8-pin connector C1. Using DVOM, check voltage between MALL module connector C1, terminal "H" (Orange wire) and ground. See Fig. 1. If battery
voltage exists, go to step 6). If battery voltage does not exist, go to next step.
Check PWR DR LK fuse (15- or 20-amp) in RH rear junction block. If fuse is open, go to next step. If fuse is not open, go to step 5).
Check for short to ground in Orange wire between RH Rear Junction Block and MALL module. Repair as necessary. Recheck system operation. If circuit is okay, go to SYSTEM
CHECK.
Repair open in power feed to PWR DR LK fuse in RH rear junction block or in Orange wire between RH Rear Junction Block and MALL module. Recheck system operation.
Using DVOM, check voltage between MALL module connector C1, terminals "H" (Orange wire) and "D" (Black wire). If battery voltage exists, go to step 8). If battery voltage does not
exist, go to next step.
1.
. Go to next
2.
3.
4.
5.
6.

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Page 6 of 7
Repair open in Black wire between MALL module and ground. See WIRING DIAGRAMS
Recheck system operation.
Check for poor terminal contact at MALL module connector C1. If terminal contact is okay, replace MALL module. Recheck system operation. If terminal contact is not okay, repair as
necessary. Recheck system operation.
7.
.
8.
Fig. 1: Identifying MALL Module Connector C1 Terminals Courtesy of GENERAL MOTORS CORP.
REMOVAL & INSTALLATION

MULTIFUNCTION ALARM, LOCK & LIGHTING (MALL) MODULE

Removal & Installation

Turn ignition switch to OFF position. Disconnect negative battery cable. Locate MALL under right side of instrument panel, near rear of instrument panel glove box. Remove lower instrument panel
sound insulator. Disconnect MALL module harness connectors. Remove MALL module from vehicle. To install, reverse removal procedure.
WIRING DIAGRAMS

AURORA & RIVIERA

Fig. 2: Body Control Module (BCM) Wiring Diagram (1997 - Aurora & Riviera)
Fig. 3: Body Control Module (BCM) Wiring Diagram (1998 - Aurora & Riviera)
Fig. 4: Interior Lights Wiring Diagram (1997 - Aurora & Riviera - 1 Of 4)
Fig. 5: Interior Lights Wiring Diagram (1997 - Aurora & Riviera - 2 Of 4)
Fig. 6: Instrument Panel Illumination Wiring Diagram (1997 - Aurora - 3 Of 4)
Fig. 7: Instrument Panel Illumination Wiring Diagram (1997 - Riviera - 4 Of 4)
Fig. 8: Illumination/Interior Light Wiring Diagram (1998 - Aurora & Riviera - 1 Of 4)
Fig. 9: Illumination/Interior Light Wiring Diagram (1998 - Aurora & Riviera - 2 Of 4)
Fig. 10: Illumination/Interior Light Wiring Diagram (1998 - Aurora - 3 Of 4)
Fig. 11: Illumination/Interior Light Wiring Diagram (1998 - Riviera - 4 Of 4)
LESABRE

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Fig. 12: Illumination/Interior Lights Wiring Diagram (1998 - LeSabre - 1 Of 2)
Fig. 13: Illumination/Interior Lights Wiring Diagram (1998 - LeSabre - 2 Of 2)
AURORA & RIVIERA

Fig. 14: Warning System Wiring Diagram (1997 - Aurora & Riviera)
Fig. 15: Warning System Wiring Diagram (1998 - Aurora & Riviera)
BONNEVILLE, EIGHTY EIGHT, LESABRE, LSS & REGENCY

Fig. 16: Body Control Module (BCM) Wiring Diagram (1997 - Bonneville, Eighty Eight, LeSabre, LSS & Regency)
Fig. 17: Body Control Module (BCM) Wiring Diagram (1998 - Bonneville, Eighty Eight, LeSabre, LSS & Regency)
Fig. 18: Interior Lights Wiring Diagram (1997 - Bonneville, Eighty Eight, LeSabre, LSS & Regency)
Fig. 19: Instrument Panel Illumination Wiring Diagram (1997 - Bonneville, Eighty-Eight, LeSabre, LSS & Regency)
Fig. 20: Illumination/Interior Lights Wiring Diagram (1998 - Bonneville - 1 Of 2)
Fig. 21: Illumination/Interior Lights Wiring Diagram (1998 - Bonneville - 2 Of 2)
Fig. 22: Illumination/Interior Lights Wiring Diagram (1998 - Eighty Eight, LSS & Regency - 1 Of 2)
Fig. 23: Illumination/Interior Lights Wiring Diagram (1998 - Eighty Eight, LSS & Regency - 2 Of 2)
Fig. 24: Warning System Wiring Diagram (1997 - Bonneville, Eighty Eight, LeSabre, LSS & Regency)
Fig. 25: Warning System Wiring Diagram (1998 - Bonneville, Eighty Eight, LeSabre, LSS & Regency)


Rivermikerat
Dec 30, 2011.

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