Isuzu 1999 RODEO Workshop Manual page 1592

DTC P0502 –VSS Circuit Low Input (Cont'd)
Step
10 1. Ignition "OFF."
2. Disconnect the MAF sensor.
attaches the VSS wires from the transmission
harness to the left-side engine harness.
3. Disconnect the green 16-way connector.
4. Select a terminal adapter from kit J 35616 that can
be used with a jumper to supply B+ to the yellow
(transmission side of the connector). There are 2
yellow wires at that connector, but the correct one is
in the corner position.
5. Use another terminal adapter to attach a voltmeter
to the blue wire with a black tracer (next to the wire in
the previous step.)
6. At the transmission side of the green 16-way
connector, locate the black wire next to the VSS
yellow ign+ wire. The black wire is the VSS ground
wire. Use a terminal adapter to attach a jumper to
ground to the black VSS ground wire at the
transmission side of the connector.
7. Raise the rear wheels off the ground with
transmission in neutral.
Does the DVM toggle back and forth between 0.6 V and
10 V as the wheels (and driveshaft) are rotated?
11 Replace the VSS.
Is the action complete?
12 Check for an open or short between the PCM and the
speedometer.
Was a problem found?
13 Replace the PCM.
IMPORTANT: The
programmed.
Powertrain Control
procedures.
And also refer to latest Service Bulletin.
Check to see if the Latest software is released or not.
And then Down Load the LATEST PROGRAMMED
SOFTWARE to the replacement PCM.
Is the action complete?
RODEO 6VD1 3.2L ENGINE DRIVEABILITY AND EMISSIONS
Action
The connector
replacement PCM
Refer to On-Vehicle Service in
Module and Sensors
Value(s)
—
—
—
must be
for
—
6E2–349
Yes No
Go to Step 12 Go to Step 11
Verify repair —
Verify repair Go to Step 13
Verify repair —