B5 - Master Cylinder Fluid Level Switch

- Connect jumper wire from Circuit 531 (DG/Y) to Circuit 512 (T/LG).

- Turn key to start position.

- observe red brake light.

- Does the brake light function?

YES -- Replace defective master cylinder fluid level switch. Repeat System Pre-Check. [1][2]System Pre-Check Pinpoint Tests

NO -- Open in Circuit 512 (T/LG) or defective ignition switch. Repair/replace and repeat System Pre-Check. [1][2]System Pre-Check Pinpoint Tests