Step
| Action
| Value(s)
| Yes
| No
|
DEFINITION:
Doors do not unlock when the transmission is put into the PARK position
|
1
| Was the Power Door Locks System Check performed?
| --
|
Go to Step 2
| Go to
Power Door Locks System Check
.
|
2
|
- Turn the ignition switch to the ON position.
- Disconnect the stop lamp switch.
- Use the DMM to measure the voltage between terminal 3 of the stop
lamp switch connector and a known good ground.
Is the measured voltage within the specified value?
| B+
|
Go to Step 4
|
Go to Step
3
|
3
|
- Locate an open or a high resistance in circuit X11.
- Repair the open or the high resistance in circuit X11.
Is the repair complete?
| --
|
Go to Step
11
| --
|
4
|
- Disconnect the BCM connector C2.
- Use the DMM to measure the resistance between terminal 4 of the
stop lamp switch connector and terminal D11 of the BCM connector C2.
Is the measured resistance within the specified value?
| Less than 5 ohms
|
Go to Step 6
|
Go to Step 5
|
5
|
- Locate an open or a high resistance in circuits FX102, FX750 and/or
FX899.
- Repair the open or the high resistance in circuits FX102, FX750
and/or FX899.
Is the repair complete?
| --
|
Go to Step
11
| --
|
6
|
- Connect the stop lamp switch.
- Press the brake pedal so that the stop lamp switch closes.
- Use the DMM to measure the voltage between terminal D11 of the
BCM connector C2 and a known good ground.
Is the measured voltage within the specified value?
| B+
|
Go to Step 8
|
Go to Step
7
|
7
| Replace the stop lamp switch. Refer to
Stop Lamp Switch Replacement
in Hydraulic Brakes.
Is the replacement complete?
| --
|
Go to Step
11
| --
|
8
|
- Disconnect the BCM connector C1.
- Put the transmission into the PARK position.
- When the transmission is in the PARK position, terminal 9 of the
inline connector C205 will not be grounded.
- Use the DMM to measure the resistance between terminal B01 of
the BCM connector C1 and a known good ground.
Is the measured resistance within the specified value?
| ∞
|
Go to Step 10
|
Go to Step 9
|
9
|
- Locate a short to ground in circuit B900.
- Repair the short to ground in circuit B900.
- Replace the automatic transmission shift lock control switch if
circuit B900 is OK.
Is the repair or the replacement complete?
| --
|
Go to Step 11
| --
|
10
| Replace the BCM. Refer to
Body Control Module Replacement
in Body control System.
Is the repair or the replacement complete?
| --
|
Go to Step 11
| --
|
11
|
- Connect all connectors and components that were disconnected.
- Verify that the doors unlock when the transmission is put into
the PARK position.
Do the doors unlock when the transmission is put into the PARK position?
| --
| System
OK
|
Go to Step 1
|
