Suzuki 2000 Grand Vitara SQ625 Service Manual page 217

6-1-106 ENGINE (H25 ENGINE)
DTC TROUBLESHOOTING
STEP
1 Was "ENGINE DIAG. FLOW TABLE" performed?
2 Fuel Level Sensor Signal Circuit check:
(1) With ignition switch OFF, disconnect G10 of
combination meter coupler.
(2) Remove ECM (PCM) cover.
(3) With ignition switch ON leaving engine OFF, check
voltage between E61-12 and ground.
Is voltage about 0 V?
3 Fuel Level Sensor check:
(1) Remove fuel level sensor referring to "ENGINE
FUEL" section.
(2) With ignition switch OFF, connect L15 coupler to
R01 coupler.
(3) With ignition switch OFF, disconnect G10 coupler
of combination meter.
(4) Check resistance between E61-12 and ground.
float level "FULL"
float level "EMPTY" 119 – 121 W
Is check result satisfied?
4 Fuel Level Sensor Voltage check:
(1) With ignition switch OFF, connect G10 coupler of
combination meter.
(2) With ignition switch ON leaving engine OFF, check
voltage between E61-12 and ground.
float level "FULL"
float level "EMPTY" about 6 V
Is check result satisfied?
ACTION
2 – 4 W
about 0 V
YES
Go to Step 2.
Go to Step 3.
Go to Step 4.
Intermittent trouble.
If OK, substitute a
known-good ECM
(PCM) and recheck.
NO
Go to "ENGINE
DIAG. FLOW
TABLE".
"Bl/W" wire shorted
to power circuit.
Faulty fuel level
sensor or its harness.
Substitute a known-
good combination
meter and recheck.