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Non-DTC Diagnosis

WARNING: This page is about a different car, the 2012 Jeep Liberty. However, it is still accessible from the selected car via links, so may be relevant.
NOTE:

The front wiper and washer switches are integral to the right multi-function switch. The right multi-function switch is hard wired to the left multi-function switch/Steering Control Module (SCM), which communicates with the ElectroMechanical Instrument Cluster (EMIC)/Cab Compartment Node (CCN) over the Local Interface Network (LIN) data bus. Before performing any of the following tests, determine whether the other functions of the right and left multi-function switch/SCM are operational. If only the right multi-function switch functions are inoperative, test and repair the right multi-function switch or the jumper harness between the right and left multi-function switches before attempting to repair the Front Wiper and Washer System. If both the right and left multi-function switch/SCM functions are ineffective, diagnose and repair that problem before attempting to repair the Front Wiper and Washer System.

CONDITION  POSSIBLE CAUSES  CORRECTION 
WIPER MOTOR DOES NOT OPERATE IN ANY SWITCH POSITION 1. Ineffective motor ground circuit. 1. Test and repair open wiper motor ground circuit if required.
2. Ineffective motor feed circuits. 2. Test and repair low speed and high speed feed circuits between TIPM and front wiper motor if required.
3. Ineffective right multi-function switch. 3. Test and replace ineffective right multi-function switch if required.
4. Ineffective SCM inputs or outputs. 4. Use a diagnostic scan tool to test the SCM inputs and outputs. Refer to the appropriate diagnostic information.
5. Ineffective EMIC (CCN) inputs or outputs. 5. Use a diagnostic scan tool to test the EMIC (CCN) inputs and outputs. Refer to the appropriate diagnostic information.
6. Ineffective TIPM inputs or outputs. 6. Use a diagnostic scan tool to test the TIPM inputs and outputs. Refer to the appropriate diagnostic information.
7. Ineffective wiper motor. 7. Test and replace open or shorted wiper motor as required.
WIPERS DO NOT PARK CORRECTLY 1. Ineffective wiper motor park switch input circuit. 1. Test and repair wiper park switch input circuit between TIPM and front wiper motor if required.
2. Ineffective TIPM inputs or outputs. 2. Use a diagnostic scan tool to test the TIPM inputs and outputs. Refer to the appropriate diagnostic information.
3. Ineffective wiper motor park switch. 3. Test and replace ineffective wiper motor if required.
WIPER MOTOR OPERATES SLOWLY IN ALL SWITCH POSITIONS 1. Ineffective wiper motor. 1. Check amperage draw with linkage disconnected from wiper motor crank arm. Correct draw should be about 6 amperes. If incorrect, refer to the appropriate Possible Cause that follows:
2. Amperage draw too low. 2. Test and repair shorted low and high speed feed circuits if required.
3. Amperage draw too high. 3. With linkage disconnected from wiper motor crank arm check linkage and pivots for binding. If binding is detected, repair or replace front wiper module if required. If no linkage binding detected, replace the front wiper motor if required.
WIPERS RUN AT HIGH SPEED WITH SWITCH LOW SPEED SELECTED OR AT LOW SPEED WITH SWITCH HIGH SPEED SELECTED 1. Ineffective motor feed circuit wiring. 1. Test and repair low speed and high speed feed circuits between TIPM and front wiper motor if required.
WASHER PUMP DOES NOT OPERATE 1. Ineffective washer pump ground circuit. 1. Test and repair open washer pump ground circuit if required.
2. Ineffective washer pump feed circuits. 2. Test and repair washer pump feed circuits between TIPM and washer pump if required.
3. Ineffective right multi-function switch. 3. Test and replace ineffective right multi-function switch if required.
4. Ineffective SCM inputs or outputs. 4. Use a diagnostic scan tool to test the SCM inputs and outputs. Refer to the appropriate diagnostic information.
5. Ineffective EMIC (CCN) inputs or outputs. 5. Use a diagnostic scan tool to test the EMIC (CCN) inputs and outputs. Refer to the appropriate diagnostic information.
6. Ineffective TIPM inputs or outputs. 6. Use a diagnostic scan tool to test the TIPM inputs and outputs. Refer to the appropriate diagnostic information.
7. Ineffective washer pump. 7. Test and replace open or shorted washer pump if required.
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