Using CRUISE Indicator Light
WARNING: This page is about a different car, the 2003 Lexus ES 300 and 2002 Lexus ES 300. However, it is still accessible from the selected car via links, so may be relevant.
- Turn the ignition switch OFF. Using the Diagnosis Check Wire (SST 09843-18020), connect the terminals Tc and CG of Data Link Connector No. 3 (DLC3). DLC3 is located under the left side of the instrument panel. See Fig 1. Turn the ignition switch ON. Read the DTC on the CRUISE MAIN indicator light. All DTCs are 2-digit numbers. Pay careful attention to length of pauses in order to read codes correctly. If the DTC is not output, inspect the CRUISE MAIN indicator light. See CRUISE MAIN INDICATOR LIGHT CIRCUIT under SYSTEM TESTS. As an example, the blinking patterns for codes; normal, 52 are shown in illustration. See Fig 2. Turn ignition off and remove Diagnostic Check Wire from DLC3.
- Operate system for which complaint was recorded to see if fault can be recreated. Again retrieve and record DTCs. If same DTC is displayed and the fault is present, diagnose and repair fault. See DIAGNOSTIC TROUBLE CODE DEFINITIONS . If same DTC is not received, but fault is still present, diagnose and repair problem based on existing symptoms. See CRUISE CONTROL PROBLEM SYMPTOMS table.
- If same DTC is not received and fault is not present, fault may have occurred in wire harness or connector in the past. Check connectors for loose, damaged or corroded terminals.