Retrieving Diagnostic Trouble Codes: Notes

NOTE: Ensure battery is in good condition and is fully charged. DO NOT start engine when retrieving codes. If codes cannot be retrieved, perform ABS WARNING LIGHT CIRCUIT and Tc TERMINAL CIRCUIT tests under SYSTEM TESTS. If problem remains, replace ABS/TRAC ECU.

Turn ignition on. Ensure ABS, TRAC OFF and SLIP warning lights illuminate for 3 seconds. If ABS, TRAC OFF or SLIP warning light does not illuminate, see ABS WARNING LIGHT CIRCUIT , SLIP WARNING LIGHT CIRCUIT or TRAC OFF WARNING LIGHT (TRAC CUT SWITCH CIRCUIT) tests under SYSTEM TESTS. If ABS or TRAC OFF warning lights flash or stay on constantly, retrieve Diagnostic Trouble Codes (DTC). See USING ABS WARNING LIGHT or USING LEXUS SCAN TOOL .