Step | Action | Value(s) | Yes | No |
|---|---|---|---|---|
1 | Did you review the steering wheel controls system operation and perform the necessary inspections? | -- | Go to Step 2 | Go to Symptoms |
2 | Verify that the steering wheel controls are inoperative. Do the steering wheel controls operate normally? | -- | Go to Testing for Intermittent Conditions and Poor Connections in Wiring Systems | Go to Step 3 |
3 | Are two or less functions of any one switch assembly inoperative? | -- | Go to Step 4 | Go to Step 5 |
4 | Replace the appropriate switch assembly. Refer to Steering Wheel Control Switches Replacement . Did you complete the replacement? | -- | Go to Step 26 | -- |
5 | Are both of the switch assemblies inoperative? | -- | Go to Step 6 | Go to Step 19 |
6 | Inspect the STR WHL RDO IGN fuse 18 for an open. Is the fuse open? | -- | Go to Step 7 | Go to Step 10 |
7 | Test CKT 801 (DK GRN/CKT 43 (YEL) for a short to ground. Is there a short to ground in CKT 801 (DK GRN/CKT 43 (YEL)? | -- | Go to Step 8 | Go to Step 9 |
8 | Repair the short to ground in CKT 801 (DK GRN/CKT 43 (YEL). Did you complete the repair? | -- | Go to Step 9 | -- |
9 | Replace the STR WHL RDO IGN fuse 18. Did you complete the replacement? | -- | Go to Step 26 | -- |
10 | Test CKT 801 (DK GRN/CKT 43 (YEL) for an open circuit. Is there an open present in CKT 801 (DK GRN/CKT 43 (YEL)? | -- | Go to Step 11 | Go to Step 12 |
11 | Repair the open in CKT 801 (DK GRN/CKT 43 (YEL). Did you complete the repair? | -- | Go to Step 26 | -- |
12 | Test CKT 1796 (DK BLU)/CKT 1011 (LT GRN) for a short to voltage? Is a short to voltage present in CKT 1796 (DK BLU)/CKT 1011 (LT GRN)? | -- | Go to Step 13 | Go to Step 14 |
13 | Repair the short to voltage in CKT 1796 (DK BLU)/CKT 1011 (LT GRN). Did you complete the repair? | -- | Go to Step 26 | -- |
14 |
Is voltage within the specified range? | 0.30-4.35 V | Go to Step 18 | Go to Step 15 |
15 | Does the voltage measure greater than the specified value? | -- | Go to Step 16 | Go to Step 17 |
16 | Repair the short to voltage in the WHT wire. Did you complete the repair? | -- | Go to Step 26 | -- |
17 | Repair the open in CKT 1796 (DK BLU)/CKT 1011 (LT GRN). Did you complete the repair? | -- | Go to Step 26 | -- |
18 | Service the radio. Refer to Radio Replacement . Is service of the radio complete? | -- | Go to Step 26 | -- |
19 | Is the VOL up, VOL DWN and Mute switch assembly inoperative? | -- | Go to Step 20 | Go to Step 23 |
20 | Test CKT 1011 (LT GRN) to the VOL up, VOL DWN and Mute switch assembly for an open circuit. Is an open present in CKT 1011 (LT GRN)? | -- | Go to Step 21 | Go to Step 22 |
21 | Repair the open in CKT 1011 (LT GRN). Did you complete the repair? | -- | Go to Step 26 | -- |
22 | Replace the switch assembly. Refer to Steering Wheel Control Switches Replacement . Did you complete the replacement? | -- | Go to Step 26 | -- |
23 | Test the WHT wire for an open circuit. Is there an open in the WHT wire? | -- | Go to Step 24 | Go to Step 25 |
24 | Repair the open in the WHT wire. Did you complete the repair? | -- | Go to Step 26 | -- |
25 | Test CKT 1011 (LT GRN) to the Seek Up, Seek DWN and Preset switch assembly for an open circuit. Is an open present in CKT 1011 (LT GRN)? | -- | Go to Step 21 | Go to Step 22 |
26 | Operate the system in order to verify the repair. Did you find and correct the condition? | -- | System OK | Go to Step 3 |
