AUTO-CRUISE CONTROL
TSB Revision
ENGINE AND EMISSION CONTROL
17-14
STEP 4. Check the auto-cruise vacuum pump.
(1) Disconnect the vacuum hose from the auto-cruise vacuum
pump and connect a vacuum gauge to the vacuum pump.
(2) Disconnect the vacuum pump connector.
(3) Check the auto-cruise vacuum pump and valves according
to the following procedure:
•
Connect the positive battery terminal to auto-cruise
vacuum pump connector terminal 1, and the negative
battery terminal to terminals 2, 3, and 4.
The vacuum gauge should read 27 kPa (8.0 in Hg) or
more.
•
The vacuum should be maintained when terminal 4 is
disconnected from the negative battery terminal while
terminals 1, 2, and 3 remain connected.
Then the vacuum gauge should read 0 kPa (0 in Hg)
when terminal 2 is disconnected from the negative
battery terminal while terminals 1, and 3 remain
connected.
•
The vacuum should be maintained when terminal 4 is
disconnected from the negative battery terminal while
terminals 1, 2, and 3 remain connected.
Then the vacuum gauge should read 0 kPa (0 in Hg)
when terminal 3 is disconnected from the negative
battery terminal while terminals 1, and 2 remain
connected.
Q: Are all of the above values satisfied?
YES : Go to Step 5.
No : Replace the auto-cruise vacuum pump. (Refer to
P.17-74
.)
Then check that diagnostic trouble code 11 is not
output.
ACX01181AB
VACUUM
GAUGE
CONTROL
VALVE
RELEASE
VALVE