Page 507 - Workshop Manual - Aumark (BJ1051)

04-363
Diagnosis-Power Windows

Parking brake indicator light is always lighted up/does not

come on (air cut-off brake)

Circuit diagram

Combination meter B034
Parking brake indicator
switch
Red-yellow Red-yellow
Parking
brake
indicator
4

Black-white

Diagnostic procedure
• This indicator light should come on when air pressure is below 0.02~0.05MPa with ignition
switch in ON position and hand brake pulled up.
• This indicator light should go out when air pressure is not less than 0.02~0.05MPa with
ignition switch in ON position and hand brake pulled down.
Tip:
If the parking brake is of air cut-off type, abnormal pressure in brake system will result in parking
brake indicator light malfunction. If air pressure in brake system is abnormal, troubleshoot brake air
circuit first. (Refer to “Chapter 26 Service Brake”.)
Check whether parking brake indicator light is always lighted up or does not come on.
Yes > (Always lighted up) go to step 1.
No > (Does not come on) go to step 3.
1. Checking for parking brake indicator light signal circuit short
(a) Ignition switch: OFF.
(b) Release parking brake.
Caution:
Before releasing parking brake, block the 4 wheels with wedges first to avoid vehicle sliding.

Page 507