Diagnostic Aids
Before performing this procedure, ensure that the vehicle park brake is set.
Step | Action | Value(s) | Yes | No |
|---|---|---|---|---|
Schematic Reference: Rear Parking Assist Schematics Connector End View Reference: Rear Parking Assist Connector End Views or Computer/Integrating Systems Connector End Views in Computer/Integrating Systems | ||||
1 | Did you review the operation and perform the necessary inspections? | -- | Go to Step 2 | |
2 |
Do all 3 display indicators illuminate for 2 seconds and then turn off? | -- | Go to Testing for Intermittent Conditions and Poor Connections in Wiring Systems | Go to Step 3 |
3 | Does the red indicator flash? | -- | Go to Rear Parking Assist Inoperative - Red Indicator Flashes | Go to Step 4 |
4 | Do all of the indicators but one indicator illuminate? | -- | Go to Step 6 | Go to Step 5 |
5 | Does any indicator remain on? | -- | Go to Step 7 | Go to Step 10 |
6 | Connect a test lamp between the control circuit of the inoperative indicator at the module connector and a good ground. Does the test lamp illuminate? | -- | Go to Step 16 | Go to Step 8 |
7 |
Does the indicator illuminate? | -- | Go to Step 9 | Go to Step 15 |
8 | Test the control circuit of the inoperative indicator for an open, for a short to battery voltage, and a high resistance. Refer to Circuit Testing and to Wiring Repairs in Wiring Systems. Did you find and correct the condition? | -- | Go to Step 19 | Go to Step 15 |
9 | Test the control circuit of the indicator for a short to ground. Refer to Circuit Testing and to Wiring Repairs in Wiring Systems. Did you find and correct the condition? | -- | Go to Step 19 | Go to Step 16 |
10 | Test the rear object sensor control module ground circuit for an open. Refer to Circuit Testing and to Wiring Repairs in Wiring Systems. Did you find and correct the condition? | -- | Go to Step 19 | Go to Step 11 |
11 | Test the rear object sensor control module ignition 1 voltage circuit for an open and for a short to ground. Refer to Circuit Testing and to Wiring Repairs in Wiring Systems. Did you find and correct the condition? | -- | Go to Step 19 | Go to Step 12 |
12 | Test the backup lamp supply voltage circuit for an open or for a short to ground. Refer to Circuit Testing and to Wiring Repairs in Wiring Systems. Did you find and correct the condition? | -- | Go to Step 19 | Go to Step 13 |
13 |
Does the test lamp illuminate? | -- | Go to Step 15 | Go to Step 14 |
14 | Test the RPA display supply voltage circuit for an open and for a short to ground. Refer to Circuit Testing and to Wiring Repairs in Wiring Systems. Did you find and correct the condition? | -- | Go to Step 19 | Go to Step 16 |
15 | Inspect for poor connections at the harness connector of the RPA display. Refer to Testing for Intermittent Conditions and Poor Connections and to Connector Repairs in Wiring Systems. Did you find and correct the condition? | -- | Go to Step 19 | Go to Step 17 |
16 | Inspect for poor connections at the harness connector of the rear object sensor control module. Refer to Testing for Intermittent Conditions and Poor Connections and to Connector Repairs in Wiring Systems. Did you find and correct the condition? | -- | Go to Step 19 | Go to Step 18 |
17 | Replace the RPA display. Refer to Information Center Telltale Assembly Replacement . Did you complete the replacement? | -- | Go to Step 19 | -- |
18 | Replace the rear object sensor control module. Refer to Control Module References in Computer/Integrating Systems for replacement, setup, and programming. Did you complete the replacement? | -- | Go to Step 19 | -- |
19 | Operate the system in order to verify the repair. Did you correct the condition? | -- | System OK | Go to Step 2 |
