TEST
ACTION
APPLICABILITY
3
Turn the ignition off.
Disconnect the TCM harness connector.
Turn the ignition on.
Connect a jumper wire to the (N7) VSS Signal circuit in the TCM harness connector.
With the DRBIII
t, monitor the Vehicle Speed Signal display.
Tap the other end of the jumper wire rapidly to ground.
Does the Vehicle Speed Signal display the MPH/kmh above 0?
All
Yes
→ Go To 4
No
→ Replace the Transmission Comtrol Module in accordance with the
Service Information.
Perform POWERTRAIN VERIFICATION TEST VER - 5.
4
Turn the ignition off.
Disconnect the PCM harness connector.
Disconnect the TCM harness connector.
Measure the resistance of the (N7) Vehicle Speed Sensor Signal circuit in the PCM
harness connector to ground.
Is the resistance below 100 ohms?
All
Yes
→ Repair the (N7) Vehicle Speed Sensor Signal circuit for a short to
ground.
Perform POWERTRAIN VERIFICATION TEST VER - 5.
No
→ Go To 5
5
Turn the ignition off.
Disconnect the PCM harness connector.
Disconnect the TCM harness connector.
Measure the resistance of the (N7) Vehicle Speed Sensor Signal circuit between the
PCM harness connector and the TCM harness connector.
Is the resistance below 5.0 ohms?
All
Yes
→ Go To 6
No
→ Repair the (N7) Vehicle Speed Sensor Signal circuit for an open.
Perform POWERTRAIN VERIFICATION TEST VER - 5
6
NOTE: Before continuing, check the PCM harness connector terminals for
corrosion, damage, or terminal push out. Repair as necessary.
Using the schematics as a guide, inspect the wire harness and connector.
Pay particular attention to all Power and Ground circuits.
If there is no possible causes remaining, view repair.
All
Repair
Replace and program the Powertrain Control Module in accor-
dance with the Service Information.
Perform POWERTRAIN VERIFICATION TEST VER - 5.
131
DRIVEABILITY - SBEC
P0500-NO VEHICLE SPEED SIGNAL (4SP AUTO TRANS) —
Continued