5. Replacement of HECU
(1) Remove connecting piece of pin 25 and wire harness of HECU in engine compartment when
engine stops, as shown in Fig. 3-11.
Fig. 3-11
(2) Remove the 6 M10×1 nuts of brake pipe of HECU with wrench 10 in a counterclockwise
(clockwise when installing) direction. Tightening torque of brake pipe is 14N·m.
(3) Remove the 3 bolts or nuts on bracket with wrench13 in a counterclockwise (clockwise when
installing) direction. Tightening torque of bolts or nuts for bracket fastness is 23N·m.
(4) Remove the 3 M6 bolts in HECU with 5mm hexagonal wrench in a counterclockwise direction
after removal of products, as shown in Fig. 3-12.
Fig. 3-12
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