Switch On (But Engine At Stop) - Suzuki Jimny Service Manual

Table A-3 Malfunction Indicator Lamp Circuit Check - Mil Flashes at Ignition
Switch ON
WIRING DIAGRAM / CIRCUIT DESCRIPTION
Refer to table A-1.
INSPECTION
Step
1 MIL flashing pattern check :
1) With the ignition switch ON position, check
MIL flashing pattern.
Does MIL flashing pattern indicate DTC (diag-
nostic trouble code)?
2 Diagnosis switch terminal check :
1) With the ignition switch ON position, check
voltage between E18-14 terminal of ECM
coupler and ground.
Is voltage 4 – 5 V?
Table A-4 Malfunction Indicator Lamp Circuit Check - MIL Does Not Flash, Just
Remains ON or Just Remains OFF Even with Grounding Diagnosis Switch
Terminal
WIRING DIAGRAM / CIRCUIT DESCRIPTION
Refer to table A-1.
INSPECTION
Step
1 MIL flashing pattern check :
1) With grounding diagnosis switch terminal
and turn the ignition switch ON position,
check voltage between E18-14 terminal of
ECM connector and ground.
Is voltage 0 – 1 V?
2 Test switch terminal circuit check :
1) With the ignition switch ON position, check
voltage between E18-15 terminal of ECM
connector and ground.
Is voltage 4 – 5 V?
Action
Action
ENGINE GENERAL INFORMATION AND DIAGNOSIS 6-45
Yes
Go to Step 2.
Substitute a known-good
ECM and recheck.
Yes
Go to Step 2.
Substitute a known-good
ECM and recheck.
No
Go to "Diagnosis" in Sec-
tion 8G.
"W/Bl" wire (diagnosis
switch terminal) shorted
to ground circuit.
If OK, substitute a known-
good ECM and recheck.
No
"W/Bl" wire (diagnosis
switch terminal), "B" wire
of monitor connector
open.
If OK, substitute a known-
good ECM and recheck.
"P" wire (test switch termi-
nal) shorted to ground cir-
cuit.
If OK, substitute a known-
good ECM and recheck.