Step | Action | Value(s) | Yes | No | ||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
1 |
Is the AUTO PARK lamp illuminated? | -- | ||||||||||||
2 | Refer to the instructions above for dealing with an intermittent problem. Is the repair complete? | -- | System OK | -- | ||||||||||
3 | Observe the indicator lamps on the instrument cluster. Is the BRAKE lamp illuminated? | -- | ||||||||||||
4 |
Is the system performing normally? | -- | System OK | |||||||||||
5 |
Is Fuse 34 blown again? | -- | ||||||||||||
6 |
Does the AUTO PARK lamp illuminate and then go off after a few seconds? | -- | ||||||||||||
7 | There is an open in the power feed to splice S302 through the Park Brake Pressure Indicator Switch.
Does the test lamp illuminate? | -- | ||||||||||||
8 | There is an open in circuit 639 (PNK) between splice S111 and terminal A of the Park Brake Pressure Indicator Switch connector.
Is the repair complete? | -- | System OK | -- | ||||||||||
9 | Use a DMM J 39200 to check resistance across the terminals of the Park Brake Pressure Indicator Switch. Does the resistance meet the specified value? | <2 ohms | ||||||||||||
10 | Replace the Park Brake Pressure Indicator Switch. Is the repair complete? | -- | System OK | -- | ||||||||||
11 | Repair the open in the circuit between the Park Brake Pressure Indicator Switch and splice S111. This includes the following circuits:
Is the repair complete? | -- | System OK | -- | ||||||||||
12 | The problem is in the portions of the AUTO PARK lamp circuit that are common to both switches that can turn on the lamp. They are:
Does the test lamp illuminate? | -- | ||||||||||||
13 | Repair the open in circuit 1184 (LT GRN) between terminal B3 of C202 and splice S302. Is the repair complete? | -- | System OK | -- | ||||||||||
14 | Check the AUTO PARK lamp. Is it burnt out? | -- | ||||||||||||
15 | Replace the AUTO PARK lamp. Is the repair complete? | -- | System OK | -- | ||||||||||
16 | Repair the open in circuit 1844 (LT GRN) between terminal B3 of connector C202 and terminal 2 of the instrument cluster connector. Is the repair complete? | -- | System OK | -- | ||||||||||
17 | The problem is a short to ground in one of the circuits fed from AUTO PARK Fuse 34. There are a number of these circuits and several components in different wiring harnesses. The following procedure starts at easily reached points and eliminates large portions of circuit with simple tests. When you have localized the problem area to a small portion of circuit, perform a close examination to find the short.
Does the test lamp illuminate? | -- | ||||||||||||
18 | Use a test lamp to probe terminal C of the park brake harness (male) side of C300. Does the test lamp illuminate? | -- | ||||||||||||
19 | Use a test lamp to probe terminal B of the park brake harness (male) side of C300. Does the test lamp illuminate? | -- | ||||||||||||
20 | Locate and repair the short to ground in circuit 1844 (LT GRN) in the park brake harness between the following points:
Is the repair complete? | -- | System OK | -- | ||||||||||
21 | Repair the short to ground in one of the following portions of the park brake harness:
Is the repair complete? | -- | System OK | -- | ||||||||||
22 | Use a test lamp to probe terminal B of the rear chassis harness (female) side of C300. Does the test lamp illuminate? | -- | ||||||||||||
23 | Repair the short to ground in circuit 1844 (LT GRN) between terminal B of C300 and terminal 2 of the instrument cluster connector. Is the repair complete? | -- | System OK | -- | ||||||||||
24 |
Does the test lamp illuminate? | -- | ||||||||||||
25 | Repair the short to ground in circuit 1929 (PNK/BLK) in one of the following areas:
Is the repair complete? | -- | System OK | -- | ||||||||||
26 | Probe terminal A of the Park Brake Pump Motor Switch connector with a test lamp. Does the test lamp illuminate? | -- | ||||||||||||
27 | Repair the short to ground in circuit 1131 (YEL/BLK) in one of the following places:
Is the repair complete? | -- | System OK | -- | ||||||||||
28 | Replace the Park Brake Pump Motor Switch. Is the repair complete? | -- | System OK | -- | ||||||||||
29 |
Does the test lamp illuminate? | -- | ||||||||||||
30 | Repair the short to ground in circuit 909 (YEL) in one of the following areas:
Is the repair complete? | -- | System OK | -- | ||||||||||
31 |
Does the test lamp illuminate? | -- | ||||||||||||
32 | Repair the short to ground in circuit 630 (PNK) in the rear chassis harness between terminal C of C111 and terminal C of C300. Is the repair complete? | -- | System OK | -- | ||||||||||
33 |
Does the test lamp illuminate? | -- | ||||||||||||
34 | Replace the Park Brake Alarm Relay. Is the repair complete? | -- | System OK | -- | ||||||||||
35 |
Does the test lamp illuminate? | -- | ||||||||||||
36 | Repair the short to ground in circuit 639 (PNK) in one of the following places:
Is the repair complete? | -- | System OK | -- | ||||||||||
37 | Repair the short to ground in circuit 639 (PNK) in one of the following places:
Is the repair complete? | -- | System OK | -- |