TEST
ACTION
APPLICABILITY
29
Turn the ignition off.
Disconnect both Speed Control Switches harness connectors.
Note: Check connectors - Clean/repair as necessary.
Measure the resistance of the speed control switch signal circuit from the On/Off
switch connector to the Resume/Accel harness connector.
Is resistance below 5.0 ohms?
All
Yes
→
Go To
30
No
→
Repair the open S/C Sw Signal Circuit from the right switch to the
Clockspring Connector.
Perform POWERTRAIN VERIFICATION TEST VER - 4.
30
Turn the ignition off.
Disconnect the Speed Control Resume/Accel Switch harness connector.
Note: Check connectors - Clean/repair as necessary.
Measure the resistance of the Sensor Ground Circuit from the S/C Resume/Accel
harness connector to a good ground.
Is the resistance below 5.0 ohms?
All
Yes
→
Go To
31
No
→
Repair the open sensor ground circuit, right S/C switch connector
to the clockspring connector.
Perform POWERTRAIN VERIFICATION TEST VER - 4.
31
Turn the ignition off.
Disconnect the Speed Control Resume/Accel Switch harness connector.
Note: Check connectors - Clean/repair as necessary.
Connect a Jumper between the S/C Switch Signal and Sensor Ground at the switch
harness connector.
Ignition on, engine not running.
With the DRBIII
t, read the S/C Switch voltage.
Does the DRBIII
t show S/C Switch is less than 1.0 volt?
All
Yes
→
Replace the right Speed Control Switch.
Perform POWERTRAIN VERIFICATION TEST VER - 4.
No
→
Test Complete.
32
Turn the ignition off.
Disconnect the Speed Control Resume/Accel Switch harness connector.
Turn the ignition on.
With the DRBIII
t, read the Speed Control Switch Voltage.
Did the DRBIII
t show Speed Control Switch Voltage go from below 4.2 Volts to above
4.2 Volts?
All
Yes
→
Replace the Right Speed Control Switch.
Perform POWERTRAIN VERIFICATION TEST VER - 4.
No
→
Go To
33
33
Turn the ignition on.
With the DRBIII
t read DTC’s.
Are any Vehicle Speed Signal codes set?
All
Yes
→
Go To
34
No
→
Go To
34
293
SPEED CONTROL
*CHECKING SPEED CONTROL OPERATION WITH NO DTC’S PRESENT
—
Continued