Diamante V6-3.5L SOHC (2003)
Check Valve: Testing and Inspection
Negative Pressure Check During Traction Control Operation
NOTE: Applies to vehicles equipped with traction control only.
1. Disconnect the vacuum hose (green stripe) from the vacuum actuator, connect a hand vacuum pump between the actuator nipple and the vacuum
hose via a T-joint. Set the hand vacuum pump near the driver's seat so that the negative pressure check can be carried out at the driver's seat.
Normal Condition
2. Check the negative pressure during traction control operation.
Inspection service points are the same as for the traction control operation inspection.
(Refer to On-vehicle Service.)
NOTE: The traction control system function will stop 20 seconds after the accelerator pedal has been depressed, and negative pressure will gradually
drop.
