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Pinpoint Test G531320p21: Apply and Release Switch Contacts Energized Simultaneously

PINPOINT TEST G531320p21: APPLY AND RELEASE SWITCH CONTACTS ENERGIZED SIMULTANEOUSLY

G531320t93: CHECK THE PRIMARY EPB APPLY AND RELEASE CIRCUIT FOR SHORT CIRCUIT FAULTS
1. Key off.





2. Electric parking brake connector 1 (CR50) disconnected.





3. Electric parking brake connector 2 (CR50) disconnected.
4. Make sure the parking brake switch is not in the apply or release position.
5. Measure the resistance between:





^ Is the resistance between 1.19 Kohms - 1.222 Kohms?

-> Yes GO to Pinpoint Test G531320t94.

-> No GO to Pinpoint Test G531320t95.

G531320t94: CHECK THE SECONDARY EPB APPLY AND RELEASE CIRCUIT FOR SHORT CIRCUIT FAULTS
1. Make sure the parking brake switch is not in the apply or released position.





2. Measure the resistance between:

^ Is the resistance between 1.19 Kohms - 1.222 Kohms?

-> Yes An intermittent fault may be present in the wiring harness. Visually check for chaffed wires or other physical damage to the harness. If no fault is found in the circuit, suspect the following component(s): - EPB module - EPB module connector, CR50 - EPB module connector, CR32

-> No GO to Pinpoint Test G531320t96.

G531320t95: CHECK IF THE SHORT CIRCUIT IS IN THE HARNESS OR THE SWITCH
1. Electric parking brake switch (TL82) connector disconnected.





2. Measure the distance between:





^ Is the resistance greater than 100 Kohms?

-> Yes INSTALL a new EPB switch.

-> No REPAIR the short circuit. For additional information, refer to Vehicle/Diagrams.

G531320t96: CHECK IF THE SHORT CIRCUIT IS IN THE HARNESS OR THE SWITCH
1. Electric parking brake switch (TL82) connector disconnected.





2.Measure the distance between:





^ Is the resistance greater than 100 Kohms?

-> Yes INSTALL a new EPB switch.

-> No REPAIR the short circuit. For additional information, refer to Vehicle/Diagrams.