Checking the cable and parking brake switch

Fig 1: Identifying Ignition Switch OFF Position

Courtesy of ABLE BODY CORP.

• Ignition off
• Check the function of the brake fluid level switch. Take readings between brake fluid level switch terminals #1 and #2.

  In the event of low fluid level the voltage must be 0 V. In the event of full fluid level the voltage should be 12 V.

  Check and remedy the wiring between driver information module (DIM) terminal #6 and brake fluid level switch terminal #1. Check for a short-circuit to ground. See Short-circuit to ground, permanent faults .

  Other information: 

  • See Connecting the breakout box .

Were any faults found? 

• YES 

  Refer to Verification 

• NO 

  FAULT NOT FOUND:  Troubleshooting has been completed.