Commander 4WD V8-4.7L VIN N (2006)
7.
Turn the ignition switch to the "OFF" position.
8.
Is this vehicle a WK (Grand Cherokee) or XK (Commander)?
a.
If YES >> Proceed to the next step.
b.
If NO >> Then this bulletin does not apply and further diagnosis is required.
9.
Disconnect and isolate the negative battery cable from the battery.
10.
Leaving the FCM attached to the Integrated Power Module (IPM), remove the IPM from its plastic support bracket (Fig. 1).
11.
Disconnect the two 40-way electrical connectors from their electrical cavities on the back of the 1PM housing. Do NOT disconnect the two
electrical connectors to the FCM.
NOTE:
During the following steps, be careful not to allow the FCM metal housing to contact the battery positive terminal.
12.
Temporarily connect the battery negative cable to the battery.
13.
Turn the ignition switch to the "Accessory" position.
14.
Locate on the back of the Integrated Power Module the 40-way electrical connector cavity that is identified by a roman numeral "II" (two). The
"II" is molded into the IPM housing and easy to see.
15.
In the IPM electrical cavity "II" locate pin # 36. Pin # 36 is clearly identified in the "II" cavity. With a DVOM probe pin # 36 for voltage. Is 12
volts present at pin # 36 of 40-way cavity "II" when the ignition switch is in the "Accessory" (on) position?
a.
If YES >> Then this bulletin does not apply and further diagnosis is required. Proceed to the next step.
b.
If NO >> Turn the ignition switch to the "OFF" position. Perform the Repair Procedure.
16.
Turn the ignition switch to the "OFF" position.
