OPERATION CHECK CHECK PRE-COLLISION SYSTEM SETTING (a) Turn the ignition switch to ON. (b) Operate the steering pad switch assembly to change the setting of PCS on the multi-information display to "On" and check that the pre-collision system turns on. HINT: When the ignition switch is turned to ON, the pre-collision system will automatically turn on. This can be changed through a customize setting using the Techstream. (c) Operate the steering pad switch assembly to change the PCS setting to "Off" and check that the PCS warning light illuminates. 
CHECK PRE-COLLISION SYSTEM SENSITIVITY SETTING (a) Turn the ignition switch to ON. (b) Operate the steering pad switch assembly to select Change PCS Sensitivity and check that the warning timing adjustment display on the multi-information display changes between "Far", "Mid" and "Near" accordingly. HINT:
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Toyota Tundra Service Manual > Pre-collision System: How To Proceed With Troubleshooting
CAUTION / NOTICE / HINT HINT: Use the following procedure to troubleshoot the pre-collision system. *: Use the Techstream. PROCEDURE 1. VEHICLE BROUGHT TO WORKSHOP NEXT 2. INSPECT BATTERY VOLTAGE (a) Measure the battery voltage. Standard voltage: 11 to 14 V If the voltage is below 11 V, replace or r ...
