Toyota Tundra Service Manual: Removal

REMOVAL

PROCEDURE

1. REMOVE NO. 1 ENGINE UNDER COVER

2. DRAIN ENGINE COOLANT

3. REMOVE V-BANK COVER SUB-ASSEMBLY

4. REMOVE AIR CLEANER HOSE ASSEMBLY

5. REMOVE THROTTLE BODY ASSEMBLY

(a) Disconnect the 2 water by-pass hoses.

(b) Disconnect the throttle position sensor and control motor connector.

(d) Remove the No. 12 water by-pass hose from the throttle body.

(e) Remove the No. 4 water by-pass hose from the throttle body.

Toyota Tundra Service Manual > Sfi System: Open in Secondary Air Injection System Heater Control Circuit (P144C,P144D)
DESCRIPTION The ECM operates the air pump heater (AI HTR) relay which causes the air pump heater (AI HTR) to operate. DTC No. DTC Detection Condition Trouble Area P144C Open or short in the air pump heater (AI HTR) relay circuit for 5 seconds (1 trip detection logic). Open or short in air pump heate ...

Toyota Tundra Owners Manual