Before performing this procedure, ensure that the following conditions are met:
• | The vehicle park brake is SET. |
• | The rear parking assist (RPA) disable switch is ON. |
Step | Action | Value(s) | Yes | No | ||||||
---|---|---|---|---|---|---|---|---|---|---|
Schematic Reference: Rear Parking Assist Schematics | ||||||||||
1 | Did you review the operation and perform the necessary inspections? | -- | Go to Step 2 | |||||||
2 |
Does the red indicator continue to flash after the bulb check? | -- | Go to Step 3 | Go to Testing for Intermittent Conditions and Poor Connections in Wiring Systems | ||||||
3 |
Does diagnostic indicator pattern #1 ( Diagnostic Trouble Code (DTC) Displaying ) appear as shown in the diagnostic indicator table when you enter diagnostics? | -- | Go to Step 4 | Go to Step 14 | ||||||
4 | Does diagnostic indicator pattern #2, 3, 4, or 5 ( Diagnostic Trouble Code (DTC) Displaying ) appear as shown in the diagnostic indicator table? | -- | Go to Step 9 | Go to Step 5 | ||||||
5 | Does diagnostic indicator pattern #6 ( Diagnostic Trouble Code (DTC) Displaying ) appear as shown in the diagnostic indicator table? | -- | Go to Step 10 | Go to Step 6 | ||||||
6 | Does diagnostic indicator pattern #7 ( Diagnostic Trouble Code (DTC) Displaying ) appear as shown in the diagnostic indicator table? | -- | Go to Diagnostic Trouble Code (DTC) Displaying and to Diagnostic Trouble Code (DTC) Clearing | Go to Step 7 | ||||||
7 | Does diagnostic indicator pattern #8 ( Diagnostic Trouble Code (DTC) Displaying ) appear as shown in the diagnostic indicator table? | -- | Go to Step 8 | Go to Step 17 | ||||||
8 |
Does diagnostic indicator pattern #8 ( Diagnostic Trouble Code (DTC) Displaying ) still appear as shown in the diagnostic indicator table? | -- | Go to Step 15 | Go to Step 16 | ||||||
9 |
Does the voltage measure greater than the specified value? | 7 V | Go to Step 17 | Go to Step 11 | ||||||
10 |
Does the voltage measure greater than the specified value? | 9.5 V | Go to Step 17 | Go to Step 13 | ||||||
11 | Test the signal circuit of the inoperative rear object sensor for an open, for a short to ground and for a short to B+. Refer to Circuit Testing and to Wiring Repairs in Wiring Systems. Did you find and correct the condition? | -- | Go to Step 22 | Go to Step 12 | ||||||
12 | Test the supply voltage circuit and the low reference circuit of the inoperative rear object sensor for an open between S428 or S429 and the rear object sensor. Refer to Circuit Testing and to Wiring Repairs in Wiring Systems. Did you find and correct the condition? | -- | Go to Step 22 | Go to Step 16 | ||||||
13 | Test the rear parking assist chime signal 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 22 | Go to Step 18 | ||||||
14 | Test the rear parking assist diagnostic circuit for an open and for a high resistance. Refer to Circuit Testing and to Wiring Repairs in Wiring Systems. Did you find and correct the condition? | -- | Go to Step 22 | Go to Step 17 | ||||||
15 | Test the supply voltage circuit and the low reference circuit of the rear object sensors for an open, for a short to ground and for a high resistance. Refer to Circuit Testing and to Wiring Repairs in Wiring Systems. Did you find and correct the condition? | -- | Go to Step 22 | Go to Step 17 | ||||||
16 | Inspect for poor connections at the harness connector of the rear object sensor. 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 22 | Go to Step 19 | ||||||
17 | 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 22 | Go to Step 20 | ||||||
18 | Inspect for poor connections at the harness connector of the body control module (BCM). 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 22 | Go to Step 21 | ||||||
19 | Replace the inoperative rear object sensor. Refer to Rear Object Sensor Replacement . Did you find and correct the condition? | -- | Go to Step 22 | -- | ||||||
20 | Replace the rear object sensor control module. Refer to Control Module References in Computer/Integrating Systems. Did you complete the replacement? | -- | Go to Step 22 | -- | ||||||
21 | Replace the BCM. Refer to Control Module References in Computer/Integrating Systems. Did you complete the replacement? | -- | Go to Step 22 | -- | ||||||
22 |
Did you correct the condition? | -- | System OK | Go to Step 2 |