Step
| Action
| Value(s)
| Yes
| No
|
1
|
- Disconnect the scan tool from the data link connector (DLC).
- Turn the ignition switch to the RUN position.
- Connect a DMM between terminal 2 and 4 of the DLC.
Is the voltage reading greater than the specified value?
| 7 volts
| Go to
Step 2
| Go to
Step 9
|
2
|
- Turn the ignition to the OFF position.
- Disconnect connector C100.
- Take the same reading between terminals 2 and 4 of the
DLC as in step 1.
Is the voltage reading greater than the specified value?
| 7 volts
| Go to
Step 5
| Go to
Step 3
|
3
|
- Turn the ignition to the OFF position.
- Reconnect connector C100.
- Disconnect connector C1 of the electronic brake control
module (EBCM).
- Take the same reading between terminals 2 and 4 of the
DLC as in step 1.
Is the voltage reading greater than the specified value?
| 7 volts
| Go to
Step 4
| Go to
Step 17
|
4
|
- Turn the ignition to the OFF position.
- Disconnect the vehicle control module (VCM) or powertrain
control module (PCM).
- Take the same reading between terminals 2 and 4 of the
DLC as in step 1.
Is the voltage reading greater than the specified value?
| 7 volts
| Go to
Step 7
| Go to
Step 17
|
5
|
- Turn the ignition to the OFF position.
- Disconnect the EVO/Passlock module (VTD).
- Take the same reading between terminals 2 and 4 of the
DLC as in step 1.
Is the voltage reading greater than the specified value?
| 7 volts
| Go to
Step 6
| Go to
Step 17
|
6
|
- Turn the ignition to the OFF position.
- Disconnect the transfer case shift control module connector C1.
- Take the same reading between terminals 2 and 4 of the
DLC as in step 1.
Is the voltage reading greater than the specified value?
| 7 volts
| Go to
Step 8
| Go to
Step 17
|
7
| Locate and repair
the short to voltage in CKT 1807 (PPL) between C100 and the
EBCM, VCM/PCM. Refer to
Wiring Repairs
in Wiring Systems.
Is the repair complete?
| --
| Go to
Control Module References
| --
|
8
|
- Locate and repair the short to voltage in CKT 1807 (PPL)
between the DLC and the VTD, C100 and the transfer case shift control module.
Refer to
Wiring Repairs
in Wiring Systems.
- Reconnect C100.
Is the repair complete?
| --
| Go to
Control Module References
| --
|
9
|
- Turn the ignition switch to the OFF position.
- Connect a DMM (continuity) between cavity 2 of the DLC
and ground.
Is continuity present?
| --
| Go to
Step 10
| Go to
Control Module References
|
10
|
- Disconnect connector C100.
- Take the same reading between terminals 2 of the DLC and
ground as in step 10.
Is continuity present?
| --
| Go to
Step 13
| Go to
Step 11
|
11
|
- Reconnect connector C100.
- Disconnect connector C1 of the electronic brake control
module (EBCM).
- Take the same reading between terminals 2 of the DLC and
ground as in step 10.
Is continuity present?
| --
| Go to
Step 12
| Go to
Step 17
|
12
|
- Disconnect the vehicle control module (VCM) or powertrain
control module (PCM).
- Take the same reading between terminals 2 of the DLC and
ground as in step 10.
Is continuity present?
| --
| Go to
Step 15
| Go to
Step 17
|
13
|
- Disconnect the EVO/Passlock module (VTD).
- Take the same reading between terminals 2 of the DLC and
ground as in step 10.
Is continuity present?
| --
| Go to
Step 14
| Go to
Step 17
|
14
|
- Disconnect the transfer case shift control module connector C1.
- Take the same reading between terminals 2 of the DLC and
ground as in step 10.
Is continuity present?
| --
| Go to
Step 16
| Go to
Step 17
|
15
| Locate and repair the short to ground in CKT 1807 (PPL)
between C100 and the EBCM, VCM/PCM. Refer to
Wiring Repairs
in Wiring Systems.
Is the repair complete?
| --
| Go to
Control Module References
| --
|
16
|
- Locate and repair the short to ground in CKT 1807 (PPL)
between the DLC and the VTD, C100 and the transfer case shift control module.
Refer to
Wiring Repairs
in Wiring Systems.
- Reconnect C100.
Is the repair complete?
| --
| Go to
Control Module References
| --
|
17
| Replace the control module that you disconnected last.
Is the repair complete?
| --
| Go to
Control Module References
| --
|
