Test Q

PINPOINT TEST Q: DTC B2603 PSD NOT FULLY CLOSED DURING THE SELF-TEST

Test Q1-Q2:

Test Q3-Q4:

Test Q5-Q7:

Test Q7-Q9:

Test Q9-Q11:

Test Q11-Q13:

Test Q13-Q15:

Test Q15-Q17:

Normal Operation
While the PSD is closing and the PSD detent switch ground signal on circuit 1227 (WH) is received, the PSD module supplies full power to the PSD motor to completely close and latch the power sliding door. As the power sliding door is powered to the final latch position, another momentary ground signal is received by the PSD module on circuit 1227 (WH). When a second momentary ground is detected, signifying the primary latch position (power sliding door completely latched), power is removed from the drive assembly actuator clutch and motor. If the PSD module does not receive the second ground signal from the PSD detent switch on circuit 1227 (WH) during a self-test, DTC B2603 sets.

Possible Causes
- circuit 1205 (BK) open
- circuit 1251 (YE/RD) open
- circuit 1227 (WH) open
- PSD alignment
- PSD mechanical system
- low battery voltage
- PSD detent switch
- PSD contact
- PSD drive assembly actuator
- PSD module