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 > Automatic Transmission System: Shift Solenoid "D" Control Circuit Low (Shift Solenoid Valve S4) (P0982,P0983)
DESCRIPTION Shifting from 1st to 6th is performed in combination with ON and OFF operation of the shift solenoid valves SL1, SL2, S1, S2, S3, S4 and SR, which are controlled by the ECM. If an open or short circuit occurs in any of the shift solenoid valves, the ECM controls the remaining normal shif ...