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.
Engine Controls - Tests W/Codes Expand All (for easy ctrl-f) Collapse All Introduction Self-Diagnostic System Diagnostic Circuit Check Notes Chart A-1, No Check Engine Light Chart A-2, Check Engine Light Won't Flash On Steady Codes 12 & 13, No Rpm Signal No Signal For 2 Seconds Code 14, Ignition Signal Circuit No Signal (VIN 5) Code 14, Ignition Signal Circuit No Signal (VIN 6) Code 21, Oxygen Sensor Circuit Open Or Shorted Circuit Code 22, Coolant Temperature Sensor Circuit Open Or Shorted Circuit Code 24, Manifold Air Temperature (Mat) Sensor Circuit Low Temperature Indicated Code 25, Oxygen Sensor Circuit Lean Exhaust Indicated Code 26, Oxygen Sensor Circuit Rich Exhaust Indicated Code 27, Sub-Oxygen Sensor Open Or Shorted Circuit VIN 5-CALIF. Only) Code 31, Mass Airflow Sensor Circuit Shorted Circuit VIN 5) Code 31, Manifold Absolute Pressure Sensor Open Or Shorted Circuit (VIN 6) Code 41, Throttle Position Sensor Open Or Shorted Circuit VIN 5) Code 41, Throttle Switch Circuit (VIN 6) Code 42, Vehicle Speed Sensor Circuit Code 43, No Crank Signal From Starter Code 51, No A/C Signal Code 52, Knock Sensor Signal Open Or Shorted Circuit VIN 5) Code 53, Knock Control Signal Faulty ECM (VIN 5) Code 71, EGR Gas Temperature Sensor Circuit (CALIFORNIA Only) Summary