Mazda B-Series 1997 Workshop Manual page 449

FT
ON-BOARD DIAGNOSIS SYSTEM
STEP
INSPECTION
Install scan tool or NGS to data link connector.
Key ON, engine off.
Access Output Test Mode in "Active Command Mode."
While in Output Test Mode, access FPM PID.
Command the outputs on. FPM PID will be on.
Observe FPM PID while performing the following:
-
Shake, wiggle, bend B+ circuit to fuel pump relay or
power-to-pump circuit between pump relay and FPM.
Is a fault indicated?
Install scan tool or NGS to data link connector.
Key ON, engine off. Wait five seconds.
Access FPF PID and observe PID while ~erformina the
-
following:
-
Shake, wiggle, bend FP circuit between PCM and fuel
pump relay or VPWR circuit between PCM power relay
and fuel pump relay.
-
Lightly tap fuel pump relay.
I
ACTION
~
Go to step 23.
I
No
)
Unable to duplicate and/or identify fault at this
1
time. Go to "lntermittent Concerns."
=
page FT-69
Yes Isolate fault and repair as necessary.
1
Go to step 23.
No
Unable to duplicate andlor identify fault at this
time. Go to "Intermittent Concerns."
. g
page FT-69
Is a fault indicated?
Perform After Repair Procedure to ensure customer's concern has been resolved.