October 30: LEMON manuals on a temporary server, it is slow and having issues, download the manuals you need! Later in November we will switch back to the fast server.
3.8L BCM Tests W/Codes Expand All (for easy ctrl-f) Collapse All Description Component Locations Operation Trouble Shooting Symptom Diagnosis Removal & Installation Self-Diagnostics Diagnostic Circuit Check Chart A-1, "Service Engine Soon" Light Inoperative Chart A-2, "Service Engine Soon" Light Won't Go Out Chart A-3, Engine Cranks But Will Not Run Chart A-5, Fuel System Electrical Test Chart A-7, Fuel Pressure Test Chart B-1, Restricted Exhaust System Check Chart C-2A, Injector Balance Test Chart C-2, Idle Air Control (IAC) Valve Check Chart C-3, Canister Purge Check Chart C-4F-1, C
I Misfire At Idle Chart C-4F-2, C
I Misfire Under Load Chart C-5, Electronic Spark Control (ESC) System Check Chart C-7, Exhaust Gas RECIRCULATION (EGR) Flow Check Chart C-8A, Torque Converter Clutch (TCC) Chart C-12A, Coolant Fan Check (Riviera & TORONADO) Chart C-12B, Coolant Fan Check (Riviera & TORONADO) Chart C-12C-A, Coolant Fan Check No High Speed Rear Fan (REATTA, Riviera & TORONADO) Chart C-12C-B, Coolant Fan Check No High Speed Front Fan (Riviera & TORONADO) Chart C-12D, Coolant Fan Check "On" At All Times (Riviera & TORONADO) Chart C-12A, Coolant Fan Check (REATTA) Chart C-12B, Coolant Fan Check (REATTA) Chart C-12C-B, Coolant Fan Check No High Speed Front Fan (REATTA) Chart C-12D, Coolant Fan Check "On" At All Times (REATTA) Self-Diagnostic System Check (REATTA & Riviera) Chart B-1, Cannot Enter Diagnostics (REATTA & Riviera) Chart B-2, CRTC Or Data Problem (REATTA & Riviera) Chart B-3, No Communication (REATTA & Riviera) Chart B-4, No Communication (REATTA & Riviera) Chart B-5, CRTC Problem (REATTA & Riviera) Chart B-6, No Communication To IPC With Only Radio Functions (REATTA & Riviera) Chart B-7, BCM Problem (REATTA & Riviera) Chart B-8, Loss Of Logic - 7 Volts (REATTA & Riviera) Chart C-1, CRT Problem (REATTA & Riviera) Chart C-2, No Picture (REATTA & Riviera) Chart C-3, No Switches Respond Or Beeper Problem (REATTA & Riviera) Chart C-4, Some Switches Do Not Respond (REATTA & Riviera) Chart C-5, Picture Rolls (REATTA & Riviera) Self-Diagnostic System Check (TORONADO CRT Equipped) Chart A, Loss Of IPC Display (TORONADO CRT Equipped) Chart A-1, Cps Check (TORONADO CRT Equipped) Chart B, Color CRT Blank With Ignition On (TORONADO CRT Equipped) Chart D-1, Serial Data Circuit Open (TORONADO CRT Equipped) Chart D-2, Grounded Serial Data Circuit (TORONADO CRT Equipped) Chart D-3, Serial Data Circuit Shorted (TORONADO CRT Equipped) Chart E, Color CRT Abnormalities (TORONADO CRT Equipped) Self-Diagnostic System Check (TORONADO ECC Equipped) Chart A, Loss Of IPC Display (TORONADO ECC Equipped) Chart A-1, Cps Check (TORONADO ECC Equipped) Chart B, Loss Of Serial Data (TORONADO ECC Equipped) Chart C, Loss Of ECC Communications (TORONADO ECC Equipped) Chart D, Loss Of Communication (TORONADO ECC Equipped) Chart D-1, Serial Data Circuit Open (TORONADO ECC Equipped) Chart D-2, Grounded Serial Data Circuit (TORONADO ECC Equipped) Chart D-3, Serial Data Circuit Short (TORONADO ECC Equipped) Code B110, Outside Temperature Sensor Circuit Code B111, A/C High Side Temperature Sensor Circuit Code B112, A/C Low Side Temperature Sensor Circuit Code B113, In-Car Temperature Sensor Circuit Code B115, Sun Load Sensor Circuit Code B119, Twilight Photocell Circuit Code B120, Twilight Delay Potentiometer (REATTA & Riviera) Code B120, Twilight Delay Pot Circuit (TORONADO) Code B120 & B122, Twilight Delay & Panel Dimming Code B121, Twilight Enable Switch Circuit (REATTA & Riviera) Code B122, Panel Dimming Potentiometer Circuit (REATTA & Riviera) Code B122, Panel Dimming Switch Pot Circuit Code B123, Panel Lamp Switch Circuit Code B124, Vehicle Speed Sensor (VSS) Circuit Problem Code B127, Gear Selector Switch Circuit (TORONADO) Code B132, Engine Oil Pressure Sensor Circuit Faulty Code B140, Phone System Fault Serial Data Circuit Multiple Intermittent Data Codes (TORONADO) Code B332, Loss Of Compass Data Code B334, Loss Of ECM Data Code B335, Loss Of ECC Or CRTC Serial Data Code B336, Loss Of IPC Serial Data Code B337, Loss Of HVAC Programmer Data Serial Data Circuit Multiple Intermittent Codes Code B410, Charging System Circuit Fault Code B411 Or B412 Battery Voltage Too High Or Too Low Code B420, Courtesy - Twilight Light Relay Circuits (Riviera & REATTA) Code B420, Courtesy Lamp Relay Circuits (Riviera & REATTA) Code B420, Twilight Relay Circuits (Optional On Riviera Only) Code B420, Hi/Lo Beam Relay Circuit (Riviera Only) Code B420, Hi/Lo Beam Relay Circuit (REATTA Only) Code B420, Retained Accessory Power Relay Circuit Code B420, Courtesy - Twilight Light Relay Circuits (TORONADO) Code B420, Twilight Light Relay Circuits (TORONADO) Code B440, Air Mix Valve (Door) Circuit Problem Code B446, B447 & B448 Refrigerant System Problem (1 Of 2) Code B446, B447 & B448 Refrigerant System Problem (2 Of 2) Code B449, High Side Temperature Too High Code B450, Coolant Temperature Too High Code B482, Anti-Lock Pressure Problem Code B552, BCM Keep Alive Memory Error Code C553, CRT Keep Alive Memory Error (REATTA & Riviera) Code B556, Odometer (Ee) Prom Error Code B660, Cruise Control Not Drive Code B663, Cruise Speed Difference Between Actual And Set, Is Too Large Code B664, Cruise - Acceleration Too High Code B667, Set/Coast Or Resume/ACCEL Circuit Shorted Code B671, Cruise Servo Position Sensor Circuit Code B672, Cruise Vent Solenoid Circuit Problem Code B673, Cruise Vacuum Solenoid Circuit Problem Code C553, CRT Keep Alive Memory Error (TORONADO) Code C710, CRTC Switching Circuit Problem (REATTA & Riviera) Code C710, CRTC Switching Circuit Problem "Driver Door Ajar" Message "Passenger Door Ajar" Message "Seat Belt" Telltale & Chime "Headlights Are On" Chime "Low Oil Pressure" Message & Telltale "Oil Level Is Low" Message "Fuel Level Is Low" Message "Washer Fluid Is Low" Message "OVERSPEED Alarm" Message "Key In Ignition" Warning Chime Flashing Coolant Gauge,"Hot" Telltale, "Engine Overheat" Message & Fast Chime "Park Brake On" Message "Brake Fluid Is Low" Message Antilock Telltale On Wiring Diagrams