Q4
Q4 CHECK THE DIODE/RESISTOR ELEMENT- Engage the parking brake.
Brake Level Level Switch:
- Measure the resistance between the brake fluid level switch connector pin 3 circuit 531 (DG/Y) and chassis ground.
Is the resistance 5 ohms or less?
> Yes
Replace the resistor/diode element. Repeat the system pre-check.
> No
Perform Pinpoint Test Q5. Q5