TEST MODE PROCEDURE TEST MODE PROCEDURE NOTICE: After replacing the absorber control ECU, it is necessary to perform registration of vehicle identification information. Vehicle identification information is automatically acquired when the system enters test mode. HINT:
(a) Turn the engine switch off. (b) Connect the Techstream to the DLC3. (c) Turn the engine switch on (IG). (d) Turn the Techstream on. (e) Enter the following menus: Chassis / Air suspension / Utility / Signal Check. Chassis > Air suspension > Utility
(f) Confirm that the system is in test mode by checking that the "Sport S+" indicator in the combination meter assembly is blinking at approximately 0.1-second intervals (0.1 seconds on and 0.1 seconds off). HINT: When vehicle identification information has not been acquired, the "Sport S+" indicator in the combination meter assembly blinks at approximately 1-second intervals (1 second on and 1 second off). After vehicle identification information is acquired, the "Sport S+" indicator in the combination meter assembly blinks at approximately 0.1-second intervals (0.1 seconds on and 0.1 seconds off). (g) With the vehicle stationary on a level surface, wait for 1 second or more. (h) Read the test mode DTCs by following the prompts on the Techstream screen. (i) End test mode by following the prompts on the Techstream screen. (j) Turn the engine switch off and disconnect the Techstream from the DLC3. TEST MODE DTC CHART (a) If a trouble code is output during the test mode DTC check, check the circuit listed for that code. For details of each code, refer to Link for the respective DTC in the chart.
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Toyota Avalon (XX50) 2019-2022 Service & Repair Manual > Lighting System(for Hv Model With Cornering Light): Back-up Light Circuit
DESCRIPTION The hybrid vehicle control ECU controls the back-up lights via the BKUP LP relay. WIRING DIAGRAM CAUTION / NOTICE / HINT NOTICE: Inspect the fuses for circuits related to this system before performing the following procedure. Before replacing the hybrid vehicle control ECU, refer to Regi ...