GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 Cadillac 🢒 1999 🢒 Catera 🢒 Body and Accessories 🢒 Lighting Systems 🢒 Park Lamps Inoperative - Front

Step

Action

Value(s)

Yes

No

DEFINITION: LH or RH park lamp is inoperative.

1

Did you perform the Exterior Lights System Check?

--

Go to Step 2

Go to Exterior Lights System Check

2
  1. Turn the headlamp switch to the PARK position.
  2. Determine which park lamp is inoperative.

Is the LH park lamp inoperative?

--

Go to Step 8

Go to Step 3

3
  1. Disconnect the RH park lamp.
  2. Use the DMM to measure the voltage between terminal B of the RH park lamp connector and a known good ground.

Is the measured voltage within the specified value?

B+

Go to Step 5

Go to Step 4

4
  1. Locate an open or a high resistance in circuit RA3.
  2. Repair the open or the high resistance in circuit RA3.

Is the repair complete?

--

Go to Step 13

--

5

Use the DMM to measure the resistance between terminal A of the RH park lamp connector and a known good ground.

Is the measured resistance less than the specified value?

5 ohms

Go to Step 7

Go to Step 6

6
  1. Locate an open or a high resistance in circuit F16.
  2. Repair the open or the high resistance in circuit F16.

Is the repair complete?

--

Go to Step 13

--

7

Replace the RH park/turn signal lamp. Refer Park/Turn Signal Lamp Bulb Replacement in to Lighting Systems.

Is the replacement complete?

--

Go to Step 13

--

8
  1. Disconnect the LH park lamp.
  2. Use the DMM to measure the voltage between terminal B of the LH park lamp connector and a known good ground.

Is the measured voltage within the specified value?

B+

Go to Step 10

Go to Step 9

9
  1. Locate an open or a high resistance in circuit RF3.
  2. Repair the open or the high resistance in circuit RF3.

Is the repair complete?

--

Go to Step 13

--

10

Use the DMM to measure the resistance between terminal A of the LH park lamp connector and a known good ground.

Is the measured resistance less than the specified value?

5 ohms

Go to Step 12

Go to Step 11

11
  1. Locate an open or a high resistance in circuit F12.
  2. Repair the open or the high resistance in circuit F12.

Is the repair complete?

--

Go to Step 13

--

12

Replace the LH park/turn signal lamp. Refer to Park/Turn Signal Lamp Bulb Replacement in Lighting Systems.

Is the replacement complete?

--

Go to Step 13

--

13
  1. Connect all of the connectors and components that were disconnected.
  2. Verify that the LH and RH park lamps turn ON.

Do the LH and RH park lamps turn ON?

--

Go to Exterior Lights System Check

Go to Step 1