Step
| Action
| Value(s)
| Yes
| No
|
1
| Inspect the radio fuse in the underhood accessory wiring junction block
for an open.
Is the radio fuse open?
| --
| Go to
Step
2
| Go to
Step 3
|
2
|
- Repair the short to ground in CKT 640.
- Inspect the system.
Is the repair complete?
| --
| System OK
| --
|
3
|
- Disconnect the trip calculator connector.
- Use a DMM in order to measure the voltage between the trip calculator
harness connector terminal A1 and ground.
Is the measured voltage within the specified value?
| 9-14 Volts
| Go to
Step 5
| Go to
Step 4
|
4
|
- Inspect for a poor connection or an open in CKT 640 between
the underhood accessory wiring junction block harness connector C2 terminal
F7 and the trip calculator harness connector terminal A1.
- If OK, replace the underhood accessory wiring junction block.
Refer to
Underhood Electrical Center or Junction Block Replacement
- Inspect the system.
Is the repair complete?
| --
| System OK
| --
|
5
| Use a DMM in order to measure the voltage between the trip
calculator harness connector terminals A1 and B5.
Is the measured voltage within the specified value?
| 9-14 Volts
| Go to
Step 7
| Go to
Step 6
|
6
|
- Repair the poor connection, the open, or the short to battery
power in CKT 1550 between the trip calculator harness connector terminal
B5 and G200.
- Inspect the system.
Is the repair complete?
| --
| System OK
| --
|
7
|
- Replace the trip calculator. Refer to
Driver Information Center Module Replacement
.
- Inspect the system.
Is the repair complete?
| --
| System OK
| --
|
