ENGINE AND EMISSION CONTROL SYSTEM
6E1-25
SH410
CODE NO.16 (P0500) VSS CIRCUIT (M/T VEHICLE)
(VSS SIGNAL NOT INPUTTED ALTHOUGH FUEL IS KEPT CUT AT LOWER THAN
4000 R / MIN. FOR LONGER THAN 4 SECONDS)
1. ECM
2. Speedometer
M / T Vehicle
STEP
ACTION
YES
NO
1
Does speedometer indicate vehicle
speed?
Speed meter cable bro-
ken.
“V” wire open.
Poor “E02-4” connection.
If OK, substitute a known-
good ECM and recheck.
Go to Step 2.
2
1) Disconnect ECM connector with igni-
tion switch OFF.
2) Connect ohmmeter between E02-4
terminal of ECM connector 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 E02-4 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 VSS
INSPECTION under ON-VEHICLE
SERVICE.
Is it good condition?
Faulty speedometer.
“V” wire open, “B” wire open,
poor coupler-to-meter connec-
tion or poor “B” 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
6E1-32 to confirm that the trouble has been corrected.
Fig. for STEP 2
1. ECM connector connected
2. Body ground