Suzuki Jimny Service Manual page 447

6-90 ENGINE GENERAL INFORMATION AND DIAGNOSIS
Test Result Confirmation Flow Table
Step
1 Check DTC in "DTC" mode and pending DTC in
"ON BOARD TEST" or "PENDING DTC" mode.
Is DTC or pending DTC displayed?
2 Set scan tool to "READINESS TESTS" mode
and check if testing has been completed.
Is test completed?
INSPECTION
Step
1 Was "Engine Diag. Flow Table" performed?
2 Check Short Term Fuel Trim.
Did short term fuel trim vary within –20 % –
+20 % range in step 3) of DTC confirmation
test?
3 Check HO2S-2 for Output Voltage.
Perform steps 1) through 9) of DTC confirma-
tion procedure for DTC P0136 (HO2S-2 mal-
function) and check output voltage of HO2S-2
then.
Is over 0.6 V and below 0.3 V indicated?
Action
Action
Yes
Proceed to applicable
DTC Diag. Flow Table.
No DTC is detected (con-
firmation test is com-
pleted).
Yes
Go to Step 2.
Go to Step 3.
Replace three way cata-
lytic converter.
No
Go to Step 2.
Repeat DTC confirmation
procedure.
No
Go to "Engine Diag. Flow
Table".
Check fuel system.
Go to DTC P0171/P0172
Diag. Flow Table.
Check "W" and "B/Bl"
wires for open and short,
and connections for poor
connection.
If wires and connections
are OK, replace HO2S-2.