ON-VEHICLE INSPECTION PROCEDURE 1. INSPECT AIR PUMP ASSEMBLY (a) Start the engine and warm it up. (b) Turn the ignition switch off.
(d) Connect the Techstream to the DLC3. (e) Turn the ignition switch to ON and turn the Techstream on. (f) Enter the following menus: Powertrain / Engine and ECT / Utility / Secondary Air Injection Check / Manual Mode / AIR PUMP 1: ON, ASV1: OPEN, AIR PUMP 2: ON, ASV2: OPEN. HINT: When Manual Mode is selected, the Techstream initialization (atmospheric pressure measurement) is performed automatically. The initialization takes 10 seconds. After the initialization, AIR PUMP and ASV operation can be selected. (g) Measure the current while the air pump assembly is turning. Standard Current:
(h) Turn the ignition switch to off. NOTICE:
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Toyota Tundra Service Manual > Vehicle Stability Control System: Open in Front Speed Sensor RH (C1330-C1467)
DESCRIPTION Each speed sensor detects wheel speed and sends signals to the skid control ECU (brake actuator assembly). These signals are used by the ABS control. HINT: The output voltage values shown below are for when the vehicle wire harnesses are connected to the skid control ECU (brake actuator ...