1986

ELECTRICAL

DIAGNOSIS

MANUAL

SUPPLEMENT

TO

ST-329-86 CAPRICE, MONTE CARLO,

EL CAMINO

SHOP MANUAL



ST-329-86S



ELECTRICAL DIAGNOSIS

MANUAL SUPPLEMENT

CAUTION


To reduce the chance of personal injury and/or property damage the following instructions must be carefully observed:
Proper service and repair are important to the safety of the service technician and the safe, reliable operation of all motor vehicles. If part replacement is necessary, the part must be replaced with one of the same part number or with an equivalent part. Do not usa a replacement part of lesser quality.
The service procedures recommended and described in this service manual are effective methods of performing service and repair. Some of these procedures require the use of tools specially designed for the purpose.
Accordingly, anyone who intends to use a replacement part, service procedure or tool, which is not recommended by the vehicle manufacturer, must first determine that neither his safety nor the safe operation of the vehicle will be jeopardized by the replacement part, service procedure or tooi selected.
It is important to note that this manual contains various "Cautions" and "Notices" that must be carefully observed in order to reduce the risk of personal injury during service or repair, or the possibility that improper service or repair may damage the vehicle or render it unsafe. It is also important to understand that these "Cautions" and "Notices" are not exhaustive, because it is impossible to warn of all the possible hazardous consequences that might result from failure to follow these instructions.


General Motors Corp 3/87

FOREWORD


This manual provides revised, and/or later production information to supplement the 1986 Caprice, Monte Carlo, El Camino Shop Manual (ST-329-86) printed in January, 1986.
The revised areas are screened for easy reference. Only changed index, schematic and theory of operation pages are inciuded in this supplement. Except for the added decimal pages in this supplement, all other pages are update or change pages to the early production manual. The manual's introductory cells 2 through 5 also apply to this supplement.
An understanding of the material contained herein and in monthly issues of Dealer Technical and Management Bulletins, issued when necessary, will assist service personnel in properly maintaining the quality to which Chevrotet cars are built.
All information, illustrations and specifications contained in this Manual are based on the latest product information available at the time of publication approval. The right is reserved to make changes at any time without notice.

NOTICE: The 1986 Chevrolet contains many parts dimensioned in the metric system. It is important to note that, during any maintenance procedure, replacement fasteners must have the same measurements and strength as those removed whether metric or customary. (Numbers on the heads of metric boits and on surfaces of metric nuts indicate their strength. Customary bolts use radial lines for this purpose, while most customary nuts do not have strength markings.) Mismatched or incorrect fasteners can result in car damage or malfunction, or possibly personal injury. Therefore, fasteners removed from the car should be saved for re-use in the same locations whenever possible. Where the fasteners are not satisfactory for re-use, care should be taken to select a replacement that matches the original.


This section is devided in two parts: 1986 Monte Carlo / El Camino and 1986 Caprice.

1986 Monte Carlo / El Camino

INDEX

Page Page Page
Air Conditioning Fuse Details (V8 VIN G and V8 VIN H)    License   
   Manual 63-0      ECM Fuse 11-0         El Camino 110-4  
   System Check 62-0      Gages Fuse 11-6         Monte Carlo 110-5*
Alarms (Audible)    IGN-ECM Fuse 11-6      Park 110-0  
   Buzzer 75-0      Stop-Haz Fuse 11-0      Rear Marker
Antenna (Power) 151-0      Turn-B/U Fuse 11-6         El Camino 110-4  
Charging System 30-0* Ground Distribution 14-0         Monte Carlo 110-5*
Cigar Lighter 114-2   Harness Routing Views 203-0      Stop   
Circuit Breaker Details    Heater 60-0         El Camino 110-2  
   PWR/ACC CIRCUIT BREAKER    Horns 40-0         Monte Carlo 110-0  
   V6 VIN Z 11-1   Indicators       Tail   
   V8 VIN G 11-0      Gages Cluster 81-0         El Camino 110-4  
   V8 VIN H 11-0         Brake Warning 81-0         Monte Carlo 110-5*
   WDO CIRCUIT BREAKER 11-8         Fasten Belts 81-0      Turn   
Clock (Digital) 114-2         Hi Beam 81-0         El Camino 110-2  
Connectors (Harness Connector Faces) 202-0         Service Engine Soon 81-0         Monte Carlo 110-0  
   C100 Details 202-0         Tachometer 81-3   Lights (Interior)   
   Body (C209) Details 202-0         Turn 81-0      Courtesy 114-0*
   Junction Block (C353) Details 202-1      Indicators Cluster 80-0      Dome 114-0*
Component Location Views 201-0         Brake Warning 80-0      Glove Box 114-2  
Cruise Control 34-1*       Choke Warning 80-1      Rear Quarter 114-0*
Defogger 61-0         Fasten Belts 80-0      Trunk 114-2  
Door Locks (Power) 130-0         Fuel Gage 80-1      Vanity 114-2  
Engine Control          Hi Beam 80-0      Underhood 114-2  
   Computer Command Control (V8 VIN G and          Service Engine Soon 80-0   Light Switch Details 12-0  
   V8 VIN H) 21-0         Turn 80-0   Power Distribution 10-1*
   Throttle Body Injection (V6 VIN Z) 20-0   Instrument Panel    Radios 150-0  
Fuse Block Details 11-0      Gages Cluster 81-0   Seats (Power)   
Fuse Details       Indicators Cluster 80-0      Without Memory 140-0  
   AC Fuse 11-8   Interior Lights Dimming 117-0   Starter 30-0*
   C/H Fuse 11-8   Lights (Exterior)    Trunk Release 134-0  
   Gages Fuse 11-4      Back Up 112-0   Vacuum System 37-0  
   IGN-ECM Fuse 11-4      Front Marker    Vehicle Speed Sensor 33-0  
   Radio Fuse 11-8         El Camino 110-2   Warnings (Audible)
   Turn-B/U Fuse 11-4         Monte Carlo 110-0      Buzzer 75-0  
   Wiper Fuse 11-8      Front Park 110-2   Windows (Power) 120-0  
Fuse Details (V6 VIN Z)       Hazard    Wiper/Washer   
   Crank Fuse 11-1         El Camino 110-2      With Pulse 91-0  
   ECM Fuse 11-1         Monte Carlo 110-6      Without Pulse 90-0  
   Gages Fuse 11-4      Hazard with Lamp Monitor 111-0     
   IGN-ECM Fuse 11-4      Headlights 100-0     
   Stop Haz Fuse 11-1        
   Turn-B/U 11-4        
*REVISED PAGE















1986 Caprice

INDEX

Page Page Page
Air Conditioning    IGN-INJ Fuse 11-2      License   
   Manual 63-0      Radio Fuse 11-8         Except Station Wagon 110-4*
Alarms (Audible)       Stop-Haz Fuse 11-8         Station Wagon 110-5
   Buzzer 75-0      Turn-B/U Fuse 11-3      Park 110-1  
   Chime 77-0      Wiper Fuse 11-8      Rear Marker
Antenna (Power) 151-0   Ground Distribution 14-2*       Except Station Wagon 110-4*
Brakes Harness Routing Views 203-0         Station Wagon 110-5  
   Power Master Brake System 46-0   Heater 60-0      Stop 110-0  
   Warning System 41-0   Horn 40-0      Tail
Charging System 30-0* Indicators          Except Station Wagon 110-4*
Choke Heater (V8 VIN H) 32-0*    Gages Cluster 81-0         Station Wagon 110-5  
Cigar Lighter 141-5         Brake 81-0      Turn 110-0  
Circuit Breaker Details          Coolant Temp 81-0   Lights (Interior)
   PWR/ACC CIRCUIT BREAKER 11-1         Fasten Belts 81-0      Courtesy 114-1  
   WDO CIRCUIT BREAKER 11-3         Service Engine Soon 81-0      Dome 114-1  
Clock 114-3      Indicators Cluster 80-0      Engine Compartment 114-5  
Connectors (Harness Connector Faces) 202-0         Brake Warning 80-0      Glove Box 114-5  
   C100 Details 202-0         Charge 80-0      Instrument Panel 114-3  
   Body (C255) Details 202-1         Choke 80-0      Reading 114-0  
   Body (C256) Details 202-0         Coolant Temp 80-0      Rear Dome 114-7  
Component Location Views 201-0         Fasten Belts 80-1      Trunk 114-0  
Cruise Control 34-0         Hi Beam 80-1      Vanity 114-0  
Defogger 61-0         Oil 80-0   Light Switch Details 12-0*
Door Locks (Power) 130-0         Service Engine Soon 80-0   Mirrors (Power) 141-0  
Engine Control          Tailgate Ajar 80-2   Power Distribution 10-0*
   Computer Command Control          Turn 80-1   Radio 150-0  
      V6 VIN Z 20-0   Instrument Panel    Seats (Power)   
      V8 VIN H 21-0      Gages Cluster 81-0      Without Memory 140-0  
      V8 VIN Y 22-0      Indicators Cluster 80-0   Starter 30-0*
Fuel Door Release 136-0   Lights (Exterior)    Trunk Release 134-0  
Fuse Block Details 11-0      Back Up 112-0   Vehicle Speed Sensor 33-0  
Fuse Details       Cornering 113-0   Windows (Power) 120-0  
   A/C Fuse 11-8      Front Marker 110-1      2 Door 120-0  
   Crank Fuse 11-2      Hazard 110-0      4 Door 120-1  
   CTSY-CLK Fuse 11-6      Hazard with Lamp Monitor 111-0      Tailgate 123-0  
   ECM Fuse 11-4      Head Lights 100-0   Wiper/Washer   
   Gages Fuse 11-5      High Level Stop Lamp 110-0      With Pulse 91-0  
   IGN-ECM Fuse 11-4         Without Pulse 90-0  
*REVISED PAGE