Power Window System - Electrical Diagnostics: Other Jeep Compass I

Monitor Conditions

1. When Monitored: Whenever the module is awake.

Set Conditions

1. Set Condition: When the Totally Integrated Power Module (TIPM) senses a draw of between 65 and 100 amps for 80 ms, this code will set. NOTE: The most probable cause for this DTC to set is that the driver held all four window switches down or up for an extended period of time thereby causing the high side driver, in the TIPM, to overheat and cut out. Once the high side driver is opened, it will remain open for approximately 10 seconds or until the next key cycle. However, the code will remain as stored.

Possible Causes

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1. TEST FOR INTERMITTENT CONDITION Turn the ignition on. With the scan tool, record and erase DTC's Cycle the ignition switch off for 30 seconds then on. Ensure the Window Lock Out Switch is ON. Operate the Driver Window Switch in all positions several times. Operate each Passenger Window Switch in both directions several times. Wait 30 seconds. With the scan tool, read DTC's. Does the scan tool display B18BB-WINDOW CONTROL CIRCUIT LOW? Yes Go To 2 . No The conditions that caused this code to set are not present at this time. Check for a sticking switch or any window motor that is not operating properly and using the wiring diagram/schematic as a guide, inspect the wiring and connectors. Perform «BODY VERIFICATION TEST - VER 1»(ref-304334-S29410035802008110700000) .
2. (F981) IGNITION SWITCH OUTPUT CIRCUIT SHORT TO GROUND Turn the ignition off. Disconnect the Driver Power Window Switch C1 and C2 connectors. Check the Master Switch for an internal short. Replace if necessary. Turn the ignition on. Measure the voltage between ground and the (F981) Ignition Switch Output circuit in the Driver Power Window Switch C2 connector. Is the voltage above 11.5 volts? Yes Go To 3 . No Go To 7 .
3. WINDOW DRIVER CIRCUITS SHORT TO GROUND Turn the ignition off. Measure the resistance between ground and each Window Driver (Up and Down) circuit in the Driver Window Switch C1 connector. Is the resistance below 10,000.0 ohms in any Window Driver circuit in the C1 connector? No Go To 4 . Yes Locate and repair the Window Driver circuit for a short to ground. The short circuit could be in either Window Driver wire or the affected motor. Perform «BODY VERIFICATION TEST - VER 1»(ref-304334-S29410035802008110700000) .
4. FRONT WINDOW DRIVER CIRCUIT SHORT TO GROUND Measure the resistance between ground and the Front Window Driver (Up and Down) circuits in the Driver Window Switch C2 connector. Is the resistance below 10,000.0 ohms in either or both circuits? Yes Repair the Window Driver circuit for a short to ground. The short circuit could be in either Window Driver wire or the motor. Perform «BODY VERIFICATION TEST - VER 1»(ref-304334-S29410035802008110700000) . No Go To 5 .
5. (Q15) WINDOW LOCK OUT SWITCH OUTPUT CIRCUIT SHORT TO GROUND Measure the resistance between ground and the (Q15) Window Lock Out Switch Output circuit Is the resistance below 10,000.0 ohms? No Go To 6 . Yes Repair the (Q15) Window Lock Out Switch Output circuit for a short to ground. The short could be in any wire going to a Passenger Window Switch or in one of the Passenger Window Switches Perform «BODY VERIFICATION TEST - VER 1»(ref-304334-S29410035802008110700000) .
6. CHECK EACH WINDOW DRIVER UP CIRCUIT FOR A SHORT TO THE WINDOW DRIVER DOWN CIRCUIT Measure the resistance of each window motor circuit between the Window Up circuit and the Window Down circuit in the Master Window Switch C1 and C2 connectors. Do this test for all four motors. Is the resistance below 0.5 ohms in any of the Window Motor circuits? Yes Disconnect the Window Motor and retest the circuits. If the resistance between the circuits is above 20,000.0 ohms, replace the motor in accordance with service information. If the resistance is still low, check the Passenger Window Switch. If the switch is not shorted, repair the Window Driver or Master Window Switch circuits for a short to each other. Perform «BODY VERIFICATION TEST - VER 1»(ref-304334-S29410035802008110700000) . No Test complete. Perform «BODY VERIFICATION TEST - VER 1»(ref-304334-S29410035802008110700000) .
7. (F981) IGNITION SWITCH OUTPUT CIRCUIT SHORT TO GROUND Turn the ignition off. Disconnect the TIPM C7 connector. Measure the resistance between ground and the (F981) Ignition Switch Output circuit in the TIPM C7 connector. Is the resistance below 10,000.0 ohms? Yes Repair the (F981) Ignition Switch Output circuit for a short to ground. Perform «BODY VERIFICATION TEST - VER 1»(ref-304334-S29410035802008110700000) . No Go To 8 .
8. (F981) IGNITION SWITCH OUTPUT CIRCUIT OPEN Measure the resistance of the (F981) Ignition Switch Output circuit between the TIPM C7 connector and the Driver Power Window Switch C2 connector. Is the resistance below 5.0 ohms? Yes Repair the (F981) Ignition Switch Output circuit for an open Perform «BODY VERIFICATION TEST - VER 1»(ref-304334-S29410035802008110700000) . No Replace the Totally Integrated Power Module in accordance with service information Perform «BODY VERIFICATION TEST - VER 1»(ref-304334-S29410035802008110700000) .

1. When Monitored: Whenever the module is awake.

1. Set Condition: When the Totally Integrated Power Module (TIPM) senses a draw of over 35 amps for over 120 ms. on the F981 Ignition Switch Output circuit, this code will set NOTE: A possible cause for this DTC to set would be if the driver held more than one window switch down for an extended period of time thereby causing the high side driver, in the TIPM, to overheat and cut out. Once the high side driver is opened, it will remain open until the next key cycle. However, the code will remain as stored.

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1. TEST FOR INTERMITTENT CONDITION Turn the ignition on. With the scan tool, record and erase DTC's Cycle the ignition switch off then on. Ensure the Window Lock Out Switch is ON. Operate the Driver Window Switch in all positions several times. Operate each Passenger Window Switch in both directions several times. Wait 30 seconds. With the scan tool, read DTC's. Does the scan tool display B191D-WINDOW CONTROL CIRCUIT OVERCURRENT? Yes Go To 2 . No The conditions that caused this code to set are not present at this time. Check for a sticking switch and using the wiring diagram/schematic as a guide, inspect the wiring and connectors. Perform «BODY VERIFICATION TEST - VER 1»(ref-304334-S29410035802008110700000) .
2. TEST WINDOW MOTORS Do all window motors operate properly at this time? No Go To 3 . Yes Check for any sticking switches, restrictions in any window channels or binding regulators and repair or replace as necessary. Perform «BODY VERIFICATION TEST - VER 1»(ref-304334-S29410035802008110700000) .
3. WINDOW MOTOR Turn the ignition off. Disconnect the inoperative window motor connector. Turn the ignition on. Connect a 12 volt test light between the Window Driver (UP) circuit and the Window Driver (DOWN) circuit. NOTE: The graphic shows the Left Front Window Motor (LHD), all others are similar, Turn the ignition on. Operate the Window Switch in both directions while observing the test light. Does the test light illuminate brightly when the switch in held in both directions? No Go To 4 . Yes Replace the window motor or regulator as necessary in accordance with service information. Perform «BODY VERIFICATION TEST - VER 1»(ref-304334-S29410035802008110700000) .
4. WINDOW DRIVER (UP) CIRCUIT SHORT TO GROUND Turn the ignition off. Disconnect the Driver Power Window Switch C1 and C2 connectors. Measure the resistance between ground and the Window Driver (Up) circuit in the motor connector. Is the resistance below 10,000.0 ohms? Yes Repair the Window Driver (Up) circuit for a short to ground. If this is not the driver window, the short could be from the master switch to the motor. Using the Power Window Schematic, check for the proper circuit. Perform «BODY VERIFICATION TEST - VER 1»(ref-304334-S29410035802008110700000) . No Go To 5 .
5. WINDOW DRIVER (DOWN) CIRCUIT SHORT TO GROUND Measure the resistance between ground and the Window Driver (Down) circuit in the motor connector. Is the resistance below 10,000.0 ohms? Yes Repair the Window Driver (Down) circuit for a short to ground. If this is not the driver window, the short could be from the master switch to the motor. Check the Power Window Schematic for the proper circuit. Perform «BODY VERIFICATION TEST - VER 1»(ref-304334-S29410035802008110700000) . No Check the Window Driver (Up) circuit for a short to the Window Driver Down circuit. Repair if the resistance is under 10,000.0 ohms. If okay, check all the windows for alignment or any reason for the heavy current draw. Perform «BODY VERIFICATION TEST - VER 1»(ref-304334-S29410035802008110700000) .