D06503
SPD
-
DIAGNOSTICS
AUTOMATIC TRANSAXLE
DI-175
329
Author:
Date:
2001 SIENNA (RM787U)
INSPECTION PROCEDURE
HINT:
Read freeze frame data using TOYOTA hand-held tester or OBD ll scan tool. Because freeze frame records
the engine conditions when the malfunction is detected, when troubleshooting it is useful for determining
whether the vehicle was running or stooped, the engine warmed up or not, the air-fuel ratio lean or rich, etc.
at the time of the malfunction.
1
Check operation of speedometer.
CHECK:
Drive the vehicle and check if the operation of the speedometer in the combination meter is normal.
HINT:
The vehicle speed sensor is operating normally if the speedometer display is normal.
NG
Check speedometer circuit.
OK
2
Check for short in harness and connector between terminal SPD of ECM and
body ground.
PREPARATION:
(a)
Remove the glove compartment (See page
(b)
Disconnect the connector of ECM.
CHECK:
Check continuity between terminal SPD of ECM and body
ground.
OK:
No continuity (1 M
Ω
or higher)
NG
Repair of replace harness or connector.
OK
