Page 503 - Workshop Manual - Aumark (BJ1051)

04-359
Diagnosis-Power Windows

Oil pressure indicator light is always lighted up/does not come
on

Circuit diagram

Combination meter

Engine oil pressure warning
switch C040
White-red White-red
Engine oil
pressure
warning
4

Self-ground

Diagnostic procedure

• When ignition switch is in ON position, this indicator light should come on.

• After the engine is started, this indicator light should go out.
• When oil pressure is not greater than 0.050± 0.011 MPa, this indicator light should come on.
• When oil pressure is greater than 0.050± 0.011 MPa, this indicator light should go out.
Notice:
If this indicator light keeps lighted up after the engine is started, stop the engine immediately
and check oil level. If the oil level is abnormal, clear the trouble first. (Refer to Service
Manual for Cummins ISF Series Engines.)
Check whether oil pressure 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 oil pressure indicator light signal circuit short
(a) Ignition switch: OFF.

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