Suzuki 2000 Grand Vitara SQ416, Service Manual

Page: 59 / 729

YH4
GRAND
VITARA
ENGINE DIAGNOSIS (G16 / J20 ENGINES) 6-55
1. To ignition switch
2. HO2S-1
3. Fuse box
DTC P0130 (DTC No.13) HO2S-1 CIRCUIT MALFUNCTION
WIRING DIAGRAM
DTC DETECTING CONDITION AND TROUBLE AREA
DTC DETECTING CONDITION TROUBLE AREA
Following conditions are detected in idle state
while running under driving conditions described
for DTC CONFIRMATION PROCEDURE.
P0130 (LOW VOLTAGE)
4.5 V or more HO2S circuit voltage is detected, when
5 V power is connected to HO2S circuit in ECM
(PCM), or
Max. output voltage of HO2S is 0.6 V or lower on av-
erage and its minimum voltage on average is 0.3 V
or lower.
(2 driving cycle detection logic)
P0130 (HIGH VOLTAGE)
Min. output voltage of HO2S is over 3.0 V or
Max. output voltage of HO2S is 0.74 V or higher on
average and its min. voltage on average is 0.33 V or
higher.
(2 driving cycle detection logic)
HO2S-1 or its circuit
Fuel system
ECM (PCM)