5AT(diag)-99
Diagnostic Procedure with Diagnostic Trouble Code (DTC)
AUTOMATIC TRANSMISSION (DIAGNOSTICS)
8
CHECK OPEN CIRCUIT IN LATERAL G SEN-
SOR OUTPUT HARNESS AND GROUND
HARNESS.
1) Turn the ignition switch to OFF.
2) Disconnect the connector from TCM.
3) Measure the resistance between TCM con-
nector terminals.
Connector & terminal
(B54) No. 18 — (B55) No. 7:
Is the resistance 5.0 — 6.0 k
:? Go to step 9.
Repair the harness
between lateral G
sensor and TCM.
9
CHECK GROUND SHORT OF HARNESS.
Measure the resistance between TCM connec-
tor and chassis ground.
Connector & terminal
(B54) No. 18 — Chassis ground:
Is the resistance 1 M
: or
more?
Go to step 10.
Repair the harness
between lateral G
sensor and TCM.
Replace the TCM.
<Ref. to 5AT-60,
Transmission Con-
trol Module
(TCM).>
10
CHECK LATERAL G SENSOR.
1) Remove the console box.
2) Remove the lateral G sensor from vehicle.
3) Connect the connector to lateral G sensor.
4) Connect the TCM connector.
5) Turn the ignition switch to ON.
6) Measure the voltage between lateral G sen-
sor connector terminals.
Connector & terminal
(B359) No. 3 (+) — No. 2 (–):
Is the voltage 2.3 — 2.7 V when
lateral G sensor is in horizontal
position?
Go to step 11.
Replace the lateral
G sensor. <Ref. to
5AT-61, Lateral G
Sensor.>
11
CHECK LATERAL G SENSOR.
Measure the voltage between lateral G sensor
connector terminals.
Connector & terminal
(B359) No. 3 (+) — No. 2 (–):
Is the voltage 3.3 — 4.3 V when
lateral G sensor is inclined 90°
to right?
Go to step 12.
Replace the lateral
G sensor. <Ref. to
5AT-61, Lateral G
Sensor.>
12
CHECK LATERAL G SENSOR.
Measure the voltage between lateral G sensor
connector terminals.
Connector & terminal
(B359) No. 3 (+) — No. 2 (–):
Is the voltage 0.7 — 1.7 V when
lateral G sensor is inclined 90°
to left?
Go to step 13.
Replace the lateral
G sensor. <Ref. to
5AT-61, Lateral G
Sensor.>
13
CHECK TCM.
1) Turn the ignition switch to OFF.
2) Connect all connectors.
3) Perform the Clear Memory Mode.
4) Perform the Inspection Mode.
5) Read the DTC.
Is the same DTC displayed?
Replace the TCM.
<Ref. to 5AT-60,
Transmission Con-
trol Module
(TCM).>
Go to step 14.
14
CHECK OTHER DTC DETECTION.
Is any other DTC displayed?
Perform the diag-
nosis according to
DTC.
Temporary poor
contact occurs.
Step
Check
Yes
No