Dtc P0102 / P0103: Mass Or Volume Air Flow Circuit Low / High Input - Suzuki 2006 SX4 Service Manual

1A-64 Engine General Information and Diagnosis:
Step
5 MAF sensor signal check
1) Turn ignition switch OFF position.
2) Connect connectors to MAF sensor and ECM.
3) Check MAF sensor signal voltage referring to "Mass Air
Flow (MAF) and Intake Air Temperature (IAT) Sensor
On-Vehicle Inspection in Section 1C".
Is each value within specified range?

DTC P0102 / P0103: Mass or Volume Air Flow Circuit Low / High Input

Wiring Diagram
Refer to "DTC P0101: Mass or Volume Air Flow Circuit Range / Performance".
DTC Detecting Condition and Trouble Area
DTC detecting condition
DTC P0102:
Output voltage of MAF sensor is lower than 0.15 V for 5 sec.
(1 driving cycle detection logic)
DTC P0103:
Output voltage of MAF sensor is higher than 4.85 V for 5 sec.
(1 driving cycle detection logic)
DTC Confirmation Procedure
1) With ignition switch OFF, connect scan tool.
2) Turn ON ignition switch and clear DTC by using scan tool.
3) Turn ignition switch to ON position.
4) Check DTC.
DTC Troubleshooting
Step
1 Was "Engine and Emission Control System Check"
performed?
2 MAF sensor and its circuit check
1) Connect scan tool to DLC with ignition switch turned
OFF.
2) Start engine and check MAF value displayed on scan
tool. (Refer to "Scan Tool Data" for normal value.)
Is normal value indicated?
Action
Action
Yes
Substitute a known-
good ECM and recheck.
Trouble area
• MAF sensor and/or its circuit
• ECM
Yes
Go to Step 2.
Intermittent trouble.
Check for intermittent
referring to "Intermittent
and Poor Connection
Inspection in Section
00".
No
Replace MAF and IAT
sensor.
S6RW0C1104018
No
Go to "Engine and
Emission Control
System Check".
Go to Step 3.