Test M: DTC B2591 No PSD Detent Switch Detected On Unlatch

PINPOINT TEST M: DTC B2591 NO PSD DETENT SWITCH DETECTED ON UNLATCH

M1-M3:

M3-M5:

M5-M7:

M7-M9:

M9-M11:

M11-M14:

M15-M17:

M18-M20:

M20-M22:

Normal Operation
During an open operation, the power sliding door (PSD) module grounds the unlatch actuator on circuit 1251 (YE/RD) to unlatch the sliding door. Circuit 1251 (YE/RD) is shared by the unlatch actuator and the detent switch as a ground return to the PSD module. If the PSD module detects a detent signal change on circuit 1251 (YE/RD), the PSD module powers the clutch and motor to open the sliding door. If the PSD module does not detect the detent switch to ground during self-test, DTC B2591 sets.

Possible Causes
- circuit 1227 (WH) open
- circuit 1251 (YE/RD) open
- circuit 1252 (GY/RD) open
- PSD adjustment
- PSD interior/exterior handle adjustment
- PSD contact
- PSD detent switch
- PSD latch actuator
- PSD remote control
- PSD module