Suzuki Wagon R Manual page 3548

Low Engine Oil Level Warning Light Symptom Diagnosis for Z13DT Engine (If
equipped)
NOTE:
There are three types of vehicle below. Refer to corresponding table for symptom diagnosis.
• Vehicle with wire harness ("G25-27" wire harness) for low engine oil level warning light.
• Vehicle without wire harness ("G25-27" wire harness) for low engine oil level warning light.
• Vehicle whose wire harness ("G25-27" wire harness) for low engine oil level warning light is cut.
Vehicle with Wire Harness for Low Engine Oil Level Warning Light
Condition
Low engine oil level
warning light does not
light up when low
engine oil level
Low engine oil level
warning light stays ON
Vehicle without Wire Harness for Low Engine Oil Level Warning Light and Vehicle whose Wire Har-
ness for Low Engine Oil Level Warning Light
Condition
Low engine oil level
warning light stays on
Diagnosis
Possible Cause
Fuse blown
Wiring or grounding faulty
Engine oil level switch faulty
Combination meter faulty
ECM faulty
Low engine oil
Wiring or grounding faulty
Engine oil level switch faulty
Combination meter faulty
ECM faulty
Possible Cause
Wiring or grounding faulty
Combination meter faulty
INSTRUMENTATION/DRIVER INFORMATION 8C-3
Correction
Replace fuse to circuit for short.
Repair circuit.
Check engine oil level switch refer-
ring to "Engine Oil Level Switch" in
Section 6E3.
Check combination meter circuit
referring to "Combination Meter" in
this section.
Check ECM referring to "Inspection
of ECM and Its Circuits" in Section
6-3.
Refill engine oil referring to "Engine
Oil and Oil Filter Replacement" in
Section 0B.
Repair circuit.
Check engine oil level switch refer-
ring to "Engine Oil Level Switch" in
Section 6E3.
Check combination meter circuit
referring to "Combination Meter" in
this section.
Check ECM referring to "Inspection
of ECM and Its Circuits" in Section
6-3.
Correction
Repair wiring harness
Replace combination meter