1. Problem symptom confirmation
2. Perform road test
Notice
: conduct the test at normal operating atf temperature 50 to 80 °c (122 to 176 °f).
Check that 1 " 2, 2 " 3 and 3 " o/d up–shift takes place, and that the shift points conform to the automatic shift schedule .
Hint
: o/d gear up–shift prohibition control
O/d and 3rd gear lock–up prohibition control
3Rd gear lock–up prohibition control
Check for shock and slip at the 1 " 2, 2 " 3 and 3 " o/d up–shift.
Run in d position lock–up or o/d gear and check for abnormal noises and vibration.
Hint: the check for the cause of abnormal noises and vibration must be done very thoroughly as it could also be sure to loss of balance in the differential, torque converter, etc.
Check that the possible kick–down vehicle speed limits for 2nd to 1st, 3rd to 2nd, o/d to 3rd kick– downs conform to those indicated on the automatic shift schedule while driving through all gears with the shift lever in the d position .
If there is a big jump in engine speed, there is no lock–up.
Check that the 1 " 2 up–shift takes place and that the shift point conforms to the automatic shift schedule .
Hint
: there is no o/d up–shift and lock–up in the 2 position.
While running in the 2 position and 2nd gear, release the accelerator pedal and check the engine braking effect.
While running in the l position, check that there is no up–shift to 2nd gear.
While running in the l position, release the accelerator pedal and check the engine braking effect.
Caution
: before conducting this test ensure that the test area is free from people and obstruction.
Check that the vehicle does not move.
Removal & installation and disassembly & reassembly
1. Remove oxygen sensor
Remove a clip and tear off the floor mat.
disconnect a oxygen sensor connector.
Remove the oxygen sensor.
2. Remove tail pipe assy
Remove 2 bolts, 2 springs and tail pipe assy.
3. Remove floor panel brace front
Remove 2 nuts and the ...
Definition of terms
Term
Definition
Monitor description
Description of what the ecm monitors and how it detects malfunction
(monitoring purpose and its details).
Related dtcs
Diagnostic code
Typical enabling condition
Preconditions that allow the ecm to detect m ...
Inspection procedure
1 Check p squib circuit(airbag sensor assy center – instrument
panel passenger airbag assy)
Disconnect the negative (–) terminal cable from the battery,
and wait at least for 90 seconds.
disconnect the connectors between the airbag sensor
assy center and the instrument panel pas ...