ENGINE AND EMISSION CONTROL SYSTEM
6E1-27
CODE NO.16 (P0500) VSS CIRCUIT
(VSS SIGNAL NOT INPUTTED ALTHOUGH FUEL IS KEPT CUT AT LOWER THAN
4000 R / MIN. FOR LONGER THAN 4 SECONDS)
1. ECM
2. Speedometer
3. Meter coupler (G01)
STEP
ACTION
YES
NO
1
Does speedometer indicate vehicle
speed?
“V” wire open.
Poor “E33–204” connec-
tion.
If OK, substitute a known-
good ECM and recheck.
Broken speed meter cable.
If if it OK, go to Step 2.
2
1) Disconnect ECM coupler with ignition
switch at OFF position.
2) Connect ohmmeter between E33-204
terminal of ECM coupler and body
ground.
3) Hoist front end of car and lock front
right tire.
4) Turn front left tire slowly. Does ohm-
meter indicator deflect between 0 and
a few times while tire is turned one
revolution?
Poor E33-204 connection. If
connection is OK, intermit-
tent trouble or faulty ECM.
Recheck referring to IN-
TERMITTENT TROUBLE.
Go to Step 3.
3
1) Remove combination meter.
2) Check speed sensor referring to VE-
HICLE SPEED SENSOR (VSS) IN-
SPECTION under ON-VEHICLE SER-
VICE.
Is it good condition?
Faulty speedometer.
“V” wire open, “B/Bl” wire
open, poor coupler-to-meter
connection or poor “B/Bl” wire
ground.
If OK, substitute a known-
good ECM and recheck.
NOTE:
Upon completion of inspection and repair work, perform DTC Confirmation Procedure, referring to page
6E1-30 to confirm that the trouble has been corrected.