Diagnostic Aids
Before performing this procedure, ensure that the vehicle park brake is SET.
Step | Action | Value(s) | Yes | No |
|---|---|---|---|---|
Schematic Reference: Object Detection Schematics Connector End View Reference: Object Detection Connector End Views or Component Connector End Views | ||||
1 | Did you review the operation and perform the necessary inspections? | -- | Go to Step 2 | |
2 |
Do all three display indicators illuminate for 2 seconds and then turn off? | -- | Go to Testing for Intermittent Conditions and Poor Connections | 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 a short to battery voltage and a high resistance. Refer to Circuit Testing and to Wiring Repairs . 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 Wiring Repairs . 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 Wiring Repairs . 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 Wiring Repairs . 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 Wiring Repairs . Did you find and correct the condition? | -- | Go to Step 19 | Go to Step 13 |
13 |
Does the test lamp illuminate? | -- | Go to Step 19 | Go to Step 14 |
14 | Test the rear parking assist display supply voltage circuit for an open and for a short to ground. Refer to Circuit Testing and Wiring Repairs . 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 rear parking assist display. Refer to Testing for Intermittent Conditions and Poor Connections and Connector Repairs . 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 Connector Repairs . Did you find and correct the condition? | -- | Go to Step 19 | Go to Step 18 |
17 | Replace the rear parking assist 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 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 |
