- Check brake light operation. If brake lights are not working, see EXTERIOR LIGHTS article in ACCESSORIES & EQUIPMENT. If brake lights are working, repair faulty circuit between brake light switch and ECM harness connector terminal No. 63 (Green/Grey wire). (Схема №1)- (Схема №5) for brake light switch and ECM locations. (Схема №11)for ECM terminal identification. See appropriate wiring diagram in «WIRING DIAGRAMS»(ref-3491) article. Go to next step.
- Connect TECH 2 scan tool to Data Link Connector (DLC). Turn ignition on and select BRAKE LIGHT value. If scan tool display reads ON when brake pedal is depressed and OFF when pedal is released, problems has been fixed. Use scan tool to erase all system DTCs. If scan tool display is not as specified, replace ECM and retest system. See «ENGINE CONTROL MODULE (ECM)»(ref-2997-S17585372472000041700000) under COMPUTERIZED ENGINE CONTROLS in REMOVAL, OVERHAUL & INSTALLATION article.
Home/Saab/9-5/Saab 9-5 I (1997-2001)/Repair manual/Testing & Diagnostics/DTC P1576 & P1577: BRAKE LIGHT SWITCH CIRCUIT MALFUNCTION
Contents
Wiring diagrams Section: Testing & Diagnostics- Engine Controls - Self-Diagnostics: Overview
- Engine Controls - Self-Diagnostics: Diagnosis
- Engine Controls - Self-Diagnostics: Maintenance
- Engine Controls - Self-Diagnostics: Other
- DTC P0100-P0103: NO MASS AIRFLOW (MAF) SENSOR SIGNAL
- DTC P0106: MANIFOLD ABSOLUTE PRESSURE (MAP) SENSOR PERFORMANCE PROBLEM
- DTC P0107-P0108: MANIFOLD ABSOLUTE PRESSURE (MAP) SENSOR CIRCUIT
- DTC P0112-P0113: INTAKE AIR TEMPERATURE (IAT) SENSOR CIRCUIT
- DTC P0116: ENGINE COOLANT TEMPERATURE (ECT) SENSOR PERFORMANCE PROBLEM
- DTC P0117-P0118: ENGINE COOLANT TEMPERATURE (ECT) SENSOR CIRCUIT
- DTC P0125: DELAYED CLOSED LOOP OPERATION
- DTC P0131, P0132 & P0134: FRONT HEATED OXYGEN SENSOR (HO2S) CIRCUIT
- DTC P0133: HO2S-1 SLOW RESPONSE
- DTC P0137, P0138 & P0140: FAULTY REAR HO2S
- DTC P0171: LONG TERM FUEL TRIM MULTIPLICATIVE FUEL MIXTURE TOO LEAN
- DTC P0172: LONG TERM FUEL TRIM MULTIPLICATIVE FUEL MIXTURE TOO RICH
- DTC P0300: RANDOM MISFIRE DETECTED
- DTC P0301-P0306: CYLINDERS 1-6 MISFIRE DETECTED
- DTC P0327: KNOCK SIGNAL INPUT
- DTC P0332: KNOCK SIGNAL INPUT
- DTC P0336 & P0337: CRANKSHAFT POSITION (CKP) SENSOR
- DTC P0340: CAMSHAFT POSITION SIGNAL
- DTC P0410: SECONDARY AIR INJECTION (SAI) AIRFLOW MALFUNCTION (2000 V6 LEV MODELS)
- DTC P0420: CATALYTIC CONVERTER MALFUNCTION
- DTC P0441: EVAP PURGE VALVE MALFUNCTION
- DTC P0442 & P0455: EVAP SYSTEM LEAK DETECTED
- DTC P0444-P0445: EVAP CANISTER PURGE VALVE CIRCUIT MALFUNCTION
- DTC P0452-P0453: FUEL TANK PRESSURE (FTP) SENSOR CIRCUIT
- DTC P0455: LARGE LEAK IN EVAP SYSTEM
- DTC P0501 & P0502: VEHICLE SPEED SENSOR (VSS) CIRCUIT
- DTC P0506: IDLE SPEED CONTROL (ISC) TOO LOW
- DTC P0507: IDLE SPEED CONTROL (ISC) TOO HIGH
- DTC P0605: INTERNAL CONTROL MODULE MALFUNCTION
- DTC P1105: CHARGE AIR ABSOLUTE PRESSURE (CAAP) SENSOR HOSE LEAK (4-CYLINDER)
- DTC P1106: CHARGE AIR ABSOLUTE PRESSURE (CAAP) SENSOR CIRCUIT PERFORMANCE PROBLEM
- DTC P1107-P1108: CHARGE AIR ABSOLUTE PRESSURE (CAAP) SENSOR CIRCUIT
- DTC P1110: CHARGE AIR BYPASS (CAB) VALVE PERFORMANCE MALFUNCTION (4-CYLINDER)
- DTC P1135-P1136: HO2S-1 HEATER CIRCUIT
- DTC P1141-P1142: HO2S-2 HEATER CIRCUIT
- DTC P1171-P1172: SHORT TERM FUEL TRIM LEAN OR RICH MIXTURE
- DTC P1181-P1182: LONG TERM FUEL TRIM-ADDITIVE LEAN OR RICH MIXTURE
- DTC P1230: THROTTLE POSITION SENSOR CIRCUITS NO. 1 & 2 VOLTAGE SUM OUT OF RANGE
- DTC P1240: THROTTLE MOTOR SHORT CIRCUIT
- DTC P1251-P1253: THROTTLE MOTOR FULL PULSE-WIDTH MODULATION MALFUNCTION
- DTC P1260: INSUFFICIENT THROTTLE RETURN SPRING FORCE
- DTC P1261: THROTTLE BINDING
- DTC P1263: THROTTLE MOVED MANUALLY WHILE ENGINE RUNNING
- DTC P1264: THROTTLE STAYS OPEN WHEN PEDAL IS RELEASED
- DTC P1300: RANDOM MISFIRE DETECTED, POTENTIAL CATALYST DAMAGE
- DTC P1301-P1306: CYLINDER 1-6 MISFIRE DETECTED, POTENTIAL CATALYST DAMAGE
- DTC P1310 & P1320: IGNITION DISCHARGE MODULE (IDM) MALFUNCTION
- DTC P1312: COMBUSTION DETECTION CYLINDERS 1 & 2 CIRCUIT FAULT (4-CYLINDER)
- DTC P1313: COMBUSTION DETECTION BANK 1 CIRCUIT FAULT (V6)
- DTC P1320: IGNITION DISCHARGE MODULE (IDM) MALFUNCTION - (V6) FRONT CYLINDER BANK
- DTC P1324: COMBUSTION DETECTION BANK 2 CIRCUIT FAULT (V6)
- DTC P1334: COMBUSTION DETECTION CYLINDERS 3 & 4 CIRCUIT FAULT (4-CYLINDER)
- DTC P1390: RANDOM MISFIRE & LOW FUEL LEVEL DETECTED - POSSIBLE CATALYST DAMAGE (4-CYLINDER)
- DTC P1390: RANDOM MISFIRE & LOW FUEL LEVEL DETECTED - POSSIBLE CATALYST DAMAGE (V6)
- DTC P1391-P1396: CYLINDERS 1-6 MISFIRE & LOW FUEL LEVEL DETECTED - POSSIBLE CATALYST DAMAGE
- DTC P1413 & P1414: SECONDARY AIR INJECTION PUMP RELAY CIRCUIT FAULTY (2000 V6 LEV MODELS)
- DTC P1441: EVAP PURGE VALVE CIRCUIT & LOW FUEL LEVEL PROBLEMS AT SAME TIME (LEV)
- DTC P1442 & P1455: EVAP PURGE VALVE CIRCUIT LEAK & FUEL LEVEL SENSOR PROBLEM DETECTED AT SAME TIME (LEV)
- DTC P1444 & P1445: EVAP SHUT-OFF VALVE CIRCUIT MALFUNCTION
- DTC P1451-P1453: FUEL TANK PRESSURE (FTP) SENSOR MALFUNCTION
- DTC P1455: EVAP PURGE VALVE CIRCUIT LARGE LEAK & FUEL LEVEL SENSOR PROBLEM DETECTED AT SAME TIME (LEV)
- DTC P1460: ALARM IMMOBILIZER ACTIVE
- DTC P1491-P1493: TANK PRESSURE SENSOR & FUEL LEVEL SENSOR PROBLEMS DETECTED AT SAME TIME (LEV)
- DTC P1530-P1531: PEDAL POSITION SENSOR CIRCUITS NO. 1 & 2 VOLTAGE SUM OUT OF RANGE
- DTC P1532: PEDAL POSITION SENSORS NO. 1 & 2 SHORT IN ECM CONTROL CIRCUITS
- DTC P1549: CHARGE AIR MALFUNCTION (4-CYLINDER)
- DTC P1576 & P1577: BRAKE LIGHT SWITCH CIRCUIT MALFUNCTION
- DTC P1601-P1633: INTERNAL ECM MALFUNCTION (EXCEPT P1624)
- DTC P1624: TRANSMISSION CONTROL MODULE REQUEST "CHECK ENGINE" INPUT
- DTC P1640: MAIN RELAY CIRCUIT VOLTAGE LOSS AT ECM CONNECTOR TERMINAL NO. 1
- DTC P1641: NO VOLTAGE FROM FUEL PUMP RELAY TO FUEL PUMP & HO2S HEATER
- DTC P1652-P1653: MAIN RELAY COIL OPEN OR SHORT CIRCUIT
- DTC P1654-P1655: FUEL PUMP RELAY COIL CIRCUIT
- DTC P1656-P1657: A/C RELAY COIL CIRCUIT
- DTC P1658-P1659: CHARGE AIR BYPASS VALVE (CABV) CIRCUIT (4-CYLINDER)
- DTC P1662-P1663: CHARGE AIR CONTROL (CAC) VALVE CIRCUIT (4-CYLINDER)
- DTC P1670-P1671: LIMP-HOME SOLENOID RELAY COIL CIRCUIT
- DTC P1676: FUEL INJECTORS OPEN OR SHORT CIRCUIT
- DTC P1908: SERIAL BUS DATA MALFUNCTION (MIU)
- DTC P1923: SERIAL BUS DATA MALFUNCTION (TCM)
- DTC P1925: NO BUS COMMUNICATION WITH TORQUE CONTROL/ANTI-LOCK BRAKE SYSTEM (TC/ABS)
- Engine Controls - Trouble Shooting - No Codes: Diagnosis
- Engine Controls - Trouble Shooting - No Codes: Other
- Abbreviations
- Accessory Drive Belts
- Adjustments
- Airbag
- Anti-Lock/traction Control
- Application
- Automatic HVAC System
- Automatic Trans
- Auxiliary Emission Control Systems
- Axle Shafts
- Basic Trouble Shooting
- Body, Cab Control Systems
- Brakes
- Cabin Air Filter
- Charging System
- Check Lists
- Clutches Manual & Hydraulic
- Computer Relearn
- Cooling Fan
- Cooling System
- Cooling System (Mechanical)
- Cruise Control Systems
- Diagnostic Connector Locations
- Door Locks & Anti-Theft Systems
- Drive Cycles
- Driveline/axles
- DTC Index
- Electrical Component Locations
- Emission Applications
- Engine
- Engine Performance
- Fuses & Circuit Breakers
- Gauges & Instrument Panels
- General Servicing - All Makes
- Heated Glass/defoggers
- Identification
- Manual Gearbox
- Manual Trans
- Mechanical
- Mechanical - Hydraulic
- Metric Conversions
- Mirrors
- Mode 6
- Oem General Information
- Removal & Installation
- Reset Procedures
- Restraints
- Seats
- Sensor Range Charts
- Specifications
- Starter
- Steering
- Steering Column
- Steering Column Switches
- Steering Gear
- Sun Roof/t-Top/convertible Top
- Suspension Front
- Suspension Rear
- Testing & Diagnostics
- Theory & Operation
- Timing Belt
- Traction Control Disable
- Transmission
- Wheel Alignment
- Windows
- Wiper/washer Systems
- Wiring Diagrams - Engine Performance
- Wiring System (Data Link Connectors, Pwr Dist., Grnd Dist.)