Suzuki Wagon R Manual page 3806

C-31: O2 Sensor Circuit (HO2S-2)
Test Table
Test
T01 Check: Component
• Is the trouble code P0136 stored?
Yes: E01
T02 Check: Component
• Check all wiring and all connectors between the following compo-
nents for corrosion, damage or moisture penetration:
• Wiring harness connector (component side)
HO2S-2
Yes: T03
T03 Check: Short to Voltage/Interruption of Ground Circuit
• Ignition OFF
• Disconnect wiring harness connector from:
ECM (Wiring Harness Connector C36)
&
HO2S-2
&
Radiator fan relay
• Ignition ON
• Measure voltage between the following terminals:
HO2S-2 - Wiring harness connector (wiring harness side) terminal
C20-4
&
Ground
Yes: T04
T04 Check: Short to Ground of Signal Circuit
• Ignition OFF
• Measure resistance between the following terminals:
HO2S-2 - Wiring harness connector (wiring harness side) terminal
C20-4
&
Ground
Yes: T05
T05 Check: Circuit Interruption of Ground Circuit
• Measure resistance between the following terminals:
HO2S-2 - Wiring harness connector (wiring harness side) terminal
C20-4
&
ECM - Wiring harness connector (wiring harness side) terminal
C36-57
Yes: T06
ENGINE GENERAL INFORMATION AND DIAGNOSIS (Z10XEP AND Z12XEP ENGINES) 6-4-125
Work Order Description Nominal Value
–
No: T02
Test OK?
No: E02
less than 0.3 V
No: E09
greater than 500 kΩ
No: E08
less than 5 Ω
No: E07