Suzuki 2006 SX4, Service Manual

Page: 121 / 1478

Engine General Information and Diagnosis: 1A-77
DTC P0134: O2 Sensor Circuit No Activity Detected (Sensor-1, Bank-1)
S6RW0C1104028
Wiring Diagram
Refer to “DTC P0030: HO2S Heater Control Circuit (Sensor-1, Bank-1)”.
A/F Sensor Description
Refer to “A/F Sensor Description”.
DTC Detecting Condition and Trouble Area
DTC Confirmation Procedure
NOTE
Check to make sure that the following conditions are satisfied when using this “DTC Confirmation
Procedure”.
• The following DTCs are not detected: DTCs related to A/F sensor heater
1) With ignition switch OFF, connect scan tool to DLC.
2) Turn ON ignition switch and clear DTC.
3) Start engine and warm up to normal operating temperature.
4) Run engine at idle speed for 2 min. or more.
5) Check DTC and pending DTC.
DTC Troubleshooting
DTC detecting condition Trouble area
Impedance of A/F sensor element is higher than 500
Ω
for 15 sec.
even though A/F sensor heater is turned ON for specified time with
engine running.
(2 driving cycle detection logic)
• A/F sensor and/or its circuit
• ECM
Step Action Yes No
1 Was “Engine and Emission Control System Check”
performed? Go to Step 2. Go to “Engine and
Emission Control
System Check”.
2 A/F sensor signal check
1) Connect scan tool with ignition switch turned OFF.
2) Warm up engine to normal operating temperature and
keep it at 2000 r/min. for 60 sec.
3) Repeat racing engine (Repeat depressing accelerator
pedal 5 to 6 times continuously to enrich A/F mixture and
take foot off from pedal to enlean it).
4) Check for A/F sensor output current displayed on scan
tool.
Does A/F sensor output current between –0.2 mA and 0.2
mA?
Intermittent trouble.
Check for intermittent
referring to “Intermittent
and Poor Connection
Inspection in Section
00”. Go to Step 3.