For 1990-2009 cars

Step | Action | Yes | No
--- | --- | --- | ---
Schematic Reference: Retained Accessory Power (RAP) Schematics DEFINITION: Retained accessory power features (power windows, level control, quarter windows or radio) do not operate properly in the retained accessory power mode.
1 | Did you perform the RAP Diagnostic System Check? | Go to Step 2 | Go to Diagnostic System Check - Retained Accessory Power
2 |

1. Close the driver and the passenger door.
2. Turn ON the ignition, with the engine OFF.
3. Tune OFF the ignition.

Do the retained accessory power functions (power windows, level control and radio) able to operate for approximately 10 minutes?

System OK

Go to Step 3

3 |

1. Turn OFF the ignition.
2. Disconnect the RAP relay.
3. Turn ON the ignition, with the engine OFF.
4. Probe the battery positive voltage circuit of the RAP relay with a test lamp that is connected to a good ground.

Does the test lamp illuminate?

Go to Step 4

Go to Step 10

4 |

1. Connect a test lamp between the control circuit of the RAP relay and the battery positive voltage circuit of the RAP relay.
2. Close the driver and the passenger door.
3. Turn ON the ignition, with the engine OFF.
4. Tune OFF the ignition.

Does the test lamp illuminate?

Go to Step 5

Go to Step 6

5 | Does the test lamp remain illuminated for longer than 10 minutes? | Go to Step 7 | Go to Step 8
6 | Test the control circuit of the RAP relay for a short to voltage or an open. Refer to Circuit Testing and Wiring Repairs in Wiring Systems. Did you find and correct the condition? | Go to Step 13 | Go to Step 9
7 | Test the control circuit of the RAP relay for a short to ground. Refer to Circuit Testing and Wiring Repairs in Wiring Systems. Did you find and correct the condition? | Go to Step 13 | Go to Step 9
8 | Inspect for poor connections at the RAP relay. Refer to Testing for Intermittent Conditions and Poor Connections and Connector Repairs in Wiring Systems. Did you find and correct the condition? | Go to Step 13 | Go to Step 11
9 | Inspect for poor connections at the harness connector of the BCM. Refer to Testing for Intermittent Conditions and Poor Connections and Connector Repairs in Wiring Systems. Did you find and correct the condition? | Go to Step 13 | Go to Step 12
10 | Repair the battery positive voltage circuit of the RAP relay. Refer to Wiring Repairs in Wiring Systems. Did you complete the repair? | Go to Step 13 | --
11 | Replace the RAP relay. Did you complete the replacement? | Go to Step 13 | --
12 | Replace the BCM. Refer to Body Control Module Replacement in Body Control System. Did you complete the replacement? | Go to Step 13 | --
13 | Operate the system in order to verify the repair. Did you correct the condition? | Go to Step 2 | System OK