Trouble Code Charts
WARNING: This page is about a different car, the 1990 Toyota Land Cruiser and 1989 Toyota Land Cruiser. However, it is still accessible from the selected car via links, so may be relevant.
LAND CRUISER TROUBLE CODE IDENTIFICATION
| Code No. | System Affected | Probable Cause | ||
|---|---|---|---|---|
| No Code | System Normal | System Normal | ||
| 11 | ECU (B+) | Ignition Switch, Main Relay or Circuit, ECU | ||
| 12 | RPM Signal | Distributor or Circuit, Starter | ||
| 13 | RPM Signal | Distributor, Ignitor or Circuit, ECU | ||
| 14 | Ignition Signal | Ignition Coil, Ignitor or Circuit, ECU | ||
| 21 | O2 Sensor or O2 Heater Signal | O2 Sensor, O2 Heater Signal or Circuit, ECU | ||
| 22 | Coolant Temp. Sensor Signal | Coolant Temp. Sensor or Circuit, ECU | ||
| 24 | Intake Air Temp. Sensor Signal | Intake Air Temp. Sensor or Circuit, ECU | ||
| 25 | Lean Air/Fuel Mixture | Injector or Circuit, O2 Sensor, O2 Sensor Circuit, Fuel Line Pressure, Airflow Meter, ECU, Air Intake System, Ignition System | ||
| 26 | Rich Air/Fuel Mixture | Inj or Circuit, Fuel Pressure, Cold Start Injector, Airflow Meter, O2 Sensor or Circuit, ECU | ||
| 28 | No. 2 O2 Sensor/Heater Signal | O2 Sensor/Heater or Circuit, ECU | ||
| 31 | Airflow Meter Signal | Airflow Meter or Circuit, ECU | ||
| 32 | Airflow Meter Signal | Airflow Meter or Circuit, ECU | ||
| 41 | TPS Signal | TPS or Circuit, ECU | ||
| 42 | Vehicle Speed Sensor Signal | Speed Sensor or Circuit, ECU | ||
| 43 | Starter Signal | Ignition Switch or Circuit, Starter Signal Circuit, ECU | ||
| 51 | Switch Signal | Accelerator Pedal or Cable, A/C Switch Circuit, A/C Amplifier, ECU, Neutral/Start Switch or Circuit, TPS Sensor or Circuit | ||
| 71 (1) | EGR System Malfunction | EGR System, EGR Temp. Sensor, Sensor Circuit, EGR BVSV or VSV, BVSV or VSV Circuit, ECU | ||
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TROUBLE CODE DIAGNOSTIC HINTS (FUEL INJECTED VEHICLES)
| Trouble Code | Diagnostic Hints | ||
|---|---|---|---|
| 11 | Momentary Interruption Of Power Supply To ECU Could Also Indicate Loss Of ECU E1 Ground Connection | ||
| 12 | No "Ne" (RPM) Ignition Signal To ECU Within 2 Seconds After Engine Is Cranked No "G" Ignition Signal To ECU 2 Times In A Row When Engine Speed Is Between 500-4000 RPM | ||
| 13 | No "Ne" (RPM) Ignition Signal To ECU When Engine Speed Is Above 1500 RPM Signal Is Generated By Pick-Up Coils In Distributor | ||
| 14 | No "IGF" Ignition Signal To ECU From Ignitor Several Times In Succession | ||
| 21 | (1) Detects Deterioration Of Oxygen Sensor | ||
| 22 | Open Or Short In Coolant Temp. Sensor/Switch Signal | ||
| 24 | Open Or Short Circuit In Intake Air Temp. Sensor Signal | ||
| 25 | Open Circuit In O2 Sensor Signal Lean Signal Sent By O2 Sensor For Several Seconds During Air/Fuel Ratio Feedback Correction | ||
| 26 | Rich Signal Sent By O2 Sensor For Several Seconds During Air/Fuel Ratio Feedback Correction | ||
| 27 | Open Or Short In Sub-O2 Sensor Signal | ||
| 28 | (1) Detects Deterioration Of No. 2 Oxygen Sensor Open Or Short In No. 2 Oxygen Sensor Circuit | ||
| 31 & 32 | Short Circuit Between Terminals Of Airflow Meter | ||
| 34 | Turbocharger Pressure Is Abnormal Code May Also Set If Airflow Meter Is Faulty | ||
| 35 | Open Circuit In High Altitude Compensator Signal | ||
| 41 | Open Or Short In Throttle Position Sensor Signal "IDL" & "PSW" Signals Are Output At Same Time For Several Seconds | ||
| 42 | No "SPD" Signal From Vehicle Speed Sensor For 8 Seconds With Engine Speed Between 2300-5500 RPM & Coolant Temp. Is Below 176°F (80°C) Except When Racing The Engine | ||
| 43 | No "STA" Signal To Ecu Until Engine Reaches 800 RPM With Vehicle Not Moving | ||
| 51 | Problem In One Of 3 Switches ECU Monitors, Throttle Position Sensor ("IDL" Signal) Neutral Safety Switch ("NSW" Signal On A/T) A/C Signal To ECU Occurs When TPS Is At Idle & A/C Switch Is "ON" And Check Connector "E1" And "TE1" Is Jumpered | ||
| 52 | Open Or Short Circuit In Knock Sensor Signal | ||
| 53 | Knock Control In ECU Is Faulty | ||
| 71 | EGR Valve Normally Closed, Or Clogged Hose Open Circuit In EGR Temperature Sensor Signal EGR Gas Below Predetermined Level During EGR Control | ||
| 72 | Open Circuit In Fuel-Cut Solenoid Signal | ||
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