REMOVAL PROCEDURE 1. REMOVE INSTRUMENT SIDE PANEL LH 2. REMOVE FRONT DOOR SCUFF PLATE LH 3. REMOVE COWL SIDE TRIM BOARD LH 4. REMOVE LOWER INSTRUMENT PANEL FINISH PANEL SUB-ASSEMBLY LH 5. REMOVE NO. 2 SWITCH HOLE BASE 6. REMOVE BACK SONAR OR CLEARANCE SONAR SWITCH ASSEMBLY
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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 ...
