DESCRIPTION This circuit provides power to operate the air conditioning amplifier. WIRING DIAGRAM ![]() PROCEDURE
(a) Remove the ECU-B NO.2 fuse from the driver side junction block. (b) Measure the resistance according to the value(s) in the table below. Standard resistance:
![]() (a) Disconnect the J19 air conditioning amplifier connector. (b) Measure the resistance and voltage according to the value(s) in the table below. Standard resistance:
Standard voltage:
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Toyota Tundra Service Manual > Power Tilt And Power Telescopic Steering Column System: ECU Power Source Circuit Malfunction (B2620)
DESCRIPTION The ECU power source circuit supplies positive (+) voltage to the multiplex tilt and telescopic ECU. DTC Code Detection Condition Trouble Area B2620 The voltage of the ECU power source drops to 8 V or less and this condition continues for 10 seconds or more. ECU-DCC NO. 2 fuse Harness or ...