Buick Riviera 2009 Fuse Box/Block Circuit Breaker Diagram
| SYMBOL | DESCRIPTION |
|---|---|
| COMPUTER HARNESS | |
| C1 | Powertrain Control Module (PCM) |
| C2 | Data Link Connector (DLC) |
| C3 | Malfunction Indicator Light (MIL) |
| C4 | PCM Harness Ground |
| C5 | Fuse Block |
| C6 | Fuel Pump Test Connector |
| C7 | Relay Center (Pass. Compartment) |
| C8 | 8-Way Ignition Jumper Connector |
| CONTROLLED DEVICES | |
| 1 | Fuel Injector |
| 2 | Idle Air Control (IAC) Valve |
| 3 | A/C Compressor Relay |
| 4 | TCC Solenoid Connector |
| 5 | Ignition Module |
| 6 | Cooling Fan Relay (Low Speed) |
| 7 | Cooling Fan Relay (High Speed) |
| 8 | Canister Purge Solenoid |
| 9 | Maxi-Fuse Relay Center |
| INFORMATION SENSORS | |
| A | Oxygen Sensor |
| B | Throttle Position Sensor |
| C | Engine Coolant Temperature sensor |
| D | Vehicle Speed Sensor |
| E | Camshaft Position Sensor |
| F | Crankshaft Position Sensor |
| G | Knock Sensor |
| H | Mass Airflow Sensor |
| J | Intake Air Temperature (IAT) Sensor |
| K | Transaxle Position Switch |
| L | A/C Pressure Switch |
| N | A/C Pressure Cycling Switch |
| P | Transaxle Fluid Temperature Sensor |
| EMISSION SYSTEMS (Not PCM Controlled) | |
| N1 | PCV Valve |
| N2 | Blower Motor Relay (if Equipped) |
| N3 | Oil Pressure Sending Unit |
| MISCELLANEOUS | |
| X | Air Bag System Components |
Buick Riviera 2009 Fuse Panel/Board – Fuse Symbol Map
