GM Service Manual Online
For 1990-2009 cars only

Post Adjustment P92

Post Adjustment

Step

Action

Value(s)

Yes

No

1

Does the CRUISE lamp come on after adjusting the RV2?

--

Go to Step 2

Go to Step 3

2

  1. Cruise control set.
  2. Vehicle moving at a steady 40 km/h (25 mph).
  3. Check the voltage at pins 20 and 21 (motor voltage)

Is the voltage steady and read between the values specified?

1-12V

Go to Step 4

Go to Step 3

3

If all other checks have been made, replace the ECU.

Is the repair complete?

--

System OK

--

4

Check the voltage at actuator pins D and C.

Is motor voltage present?

--

Go to Step 6

Go to Step 5

5

Inspect and repair any faulty wiring.

Is the repair complete?

--

System OK

--

6

Check the voltage between pins 22 and 23 with the cruise control set.

Is the voltage at the specified value?

12V

Go to Step 7

Go to Step 3

7

Check for voltage at pins A and B on the actuator.

Is voltage present?

--

Go to Step 8

Go to Step 6

8

Replace the actuator.

Is the repair complete?

--

System OK

--