Step | Action | Value(s) | Yes | No | ||||||
|---|---|---|---|---|---|---|---|---|---|---|
1 | Did you review the radio/audio system operation and perform the necessary inspections? | -- | Go to Step 2 | Go to Symptoms | ||||||
2 | Verify that the rear seat radio controls are inoperative. Do the rear seat radio controls operate normally? | -- | Go to Testing for Intermittent Conditions and Poor Connections in Wiring Systems | Go to Step 3 | ||||||
3 | Is the power ON indicator inoperative only? | -- | Go to Step 4 | Go to Step 6 | ||||||
4 | Test CKT 314 (PNK) at the rear seat audio control for voltage. Is voltage present in CKT 314 (PNK)? | -- | Go to Step 19 | Go to Step 5 | ||||||
5 | Repair the open in CKT 314 (PNK). Refer to Circuit Testing and Wiring Repairs in Wiring Systems. Is the repair complete? | -- | Go to Step 35 | -- | ||||||
6 | When the PWR button is pressed to select ON, verify the that the following conditions exist:
Do the conditions exist? | -- | Go to Step 7 | Go to Step 12 | ||||||
7 | Test CKT 314 (PNK) for a short to ground. Is a short to ground present in CKT 314 (PNK)? | -- | Go to Step 8 | Go to Testing for Intermittent Conditions and Poor Connections in Wiring Systems | ||||||
8 | Disconnect the rear seat audio control. Is a short to ground present in CKT 314 (PNK)? | -- | Go to Step 9 | Go to Step 19 | ||||||
9 | Disconnect the radio. Is a short to ground present in CKT 314 (PNK)? | -- | Go to Step 10 | Go to Step 23 | ||||||
10 | Disconnect the amplifier. Is a short to ground present in CKT 314 (PNK)? | -- | Go to Step 11 | Go to Step 28 | ||||||
11 | Repair the short to ground in CKT 314 (PNK). Refer to Circuit Testing and Wiring Repairs in Wiring Systems. Is the repair complete? | -- | Go to Step 35 | -- | ||||||
12 | Are both channels inoperative? | -- | Go to Step 14 | Go to Step 13 | ||||||
13 | Is the left channel inoperative? | -- | Go to Step 26 | Go to Step 27 | ||||||
14 |
Is voltage within the specified range? | 3.1-3.3 V | Go to Step 20 | Go to Step 15 | ||||||
15 | Test CKT 1301 (DK GRN) for an open circuit. Is an open present in CKT 1301 (DK GRN)? | -- | Go to Step 16 | Go to Step 17 | ||||||
16 | Repair the open in CKT 1301 (DK GRN). Refer to Circuit Testing and Wiring Repairs in Wiring Systens. Is the repair complete? | -- | Go to Step 35 | -- | ||||||
17 | Test CKT 1050 (BLK ) for an open circuit. Is an open present in CKT 1050 (BLK)? | -- | Go to Step 18 | Go to Step 19 | ||||||
18 | Repair the open in CKT 1050 (BLK). Refer to Circuit Testing and Wiring Repairs in Wiring Systens. Is the repair complete? | -- | Go to Step 35 | -- | ||||||
19 | Replace the rear seat audio control. Refer to Rear Seat Audio Control Replacement . Is the replacement complete? | -- | Go to Step 35 | -- | ||||||
20 |
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). Refer to Circuit Testing and Wiring Repairs in Wiring Systens. Is the repair complete? | -- | Go to Step 35 | -- | ||||||
22 |
Is voltage within the specified range? | 9-16 V | Go to Step 24 | Go to Step 23 | ||||||
23 | Service the radio. Refer to Radio Replacement . Is service of the radio complete? | -- | Go to Step 35 | -- | ||||||
24 | Test CKT 314 (PNK) at the amplifier (backprobe) for voltage. Is voltage within the specified range? | 9-16 V | Go to Step 26 | Go to Step 25 | ||||||
25 | Repair the open in CKT 314 (PNK). Refer to Circuit Testing and Wiring Repairs in Wiring Systens. Is the repair complete? | -- | Go to Step 35 | -- | ||||||
26 |
Important: The audio output signal can be identified as a fluctuating AC voltage. Measure from the channel output cavity to the channel common ground cavity.
Is the left channel audio output present? | 100-400 mV AC | Go to Step 29 | Go to Step 28 | ||||||
27 |
Important: The audio output signal can be identified as a fluctuating AC voltage. Measure from the channel output cavity to the channel common ground cavity.
Is the right channel audio output present? | 100-400 mV AC | Go to Step 29 | Go to Step 28 | ||||||
28 |
Is service of the amplifier complete? | -- | Go to Step 35 | -- | ||||||
29 |
Important: The audio output signal can be identified as a fluctuating AC voltage. Measure from the channel input cavity to the channel common ground cavity. Test for audio input to the rear seat audio module. Is the audio signal present? | 100-400 mV AC | Go to Step 19 | Go to Step 30 | ||||||
30 | Are both channels inoperative? | -- | Go to Step 31 | Go to Step 32 | ||||||
31 | Repair the open in CKT 372 (BLK/WHT). Refer to Circuit Testing and Wiring Repairs in Wiring Systens. Is the repair complete | -- | Go to Step 35 | -- | ||||||
32 | Is the right channel input inoperative? | -- | Go to Step 33 | Go to Step 34 | ||||||
33 | Repair the open in CKT 368 (DK GRN/WHT). Refer to Circuit Testing and Wiring Repairs in Wiring Systens. Is the repair complete? | -- | Go to Step 35 | -- | ||||||
34 | Repair the open in CKT 367 (BRN/WHT). Refer to Circuit Testing and Wiring Repairs in Wiring Systens. Is the repair complete? | -- | Go to Step 35 | -- | ||||||
35 | Operate the system in order to verify the repair. Did you correct the condition? | -- | System OK | Go to Step 3 |
