Last Modified: 6-7-2017 6.8:8.0.40 Doc ID: RM000001352002X agn Model Year Start: 2006 Model: Land Cruiser Prod Date Range: [05/2005 - ] Title: INTRODUCTION: HOW TO TROUBLESHOOT ECU CONTROLLED SYSTEMS: HOW TO PROCEED WITH TROUBLESHOOTING; 2006 MY Land Cruiser [05/2005 - ] HOW TO PROCEED WITH TROUBLESHOOTING 1. OPERATION FLOW HINT: Perform troubleshooting in accordance with the procedures below. The following is an outline of basic troubleshooting procedures. Confirm the troubleshooting procedures for the circuit you are working on before beginning troubleshooting. 1. VEHICLE BROUGHT TO WORKSHOP NEXT 2.
CUSTOMER PROBLEM ANALYSIS (a) Ask the customer about the conditions and environment when the problem occurred. NEXT 3. INSPECT BATTERY VOLTAGE Standard voltage: 11 to 14 V f the voltage is below 11 V, recharge or replace the battery before proceeding. NEXT 4. SYMPTOM CONFIRMATION AND DTC (AND FREEZE FRAME DATA) CHECK (a) Visually check the wire harnesses, connectors and fuses for open and short circuits. (b) Warm up the engine to the normal operating temperature. (c) Confirm the problem symptoms and conditions, and check for DTCs. RESULT PROCEED TO DTC is output A DTC is not output B Go to step B 6 A 5. DTC CHART cardi B Go to step 6