GDI ± Troubleshooting
13A-61
INSPECTION PROCEDURE 21
GDI ECO indicator lamp does not illuminate.
Probable cause
If the GDI ECO indicator lamp does not illuminate after turning switch, the causes
listed in the right column are suspected.
D Burned-out GDI ECO indicator lamp bulb
D Open circuit or short-circuited harness wire in the
GDI ECO indicator lamp circuit
D Malfunction of the engine-ECU
D Malfunction of the GDI ECO indicator lamp ECU
NG
Repair
OK
NG
NG
Repair
Measure at engine-ECU connector C-17.
D Disconnect the connector, and measure at the harness side.
D Earth terminal 14. (Ignition switch: ON)
OK: The GDI ECO indicator lamp illuminates.
OK
Check the following connector: C-17
OK
Check trouble symptom.
NG
Replace the engine-ECU.
OK
Check the relative circuits of GDI ECO indication lamp.
(Refer to GROUP 54A-Troubleshooting.)
Check trouble symptom.
Check the following connectors: C-29, C-55
Check the harness wire between the GDI-ECO Indication lamp-
ECU and engine-ECU.
NG
NG
Repair
INSPECTION PROCEDURE 22
GDI ECO indicator lamp remains illuminated and does not
go off.
Probable cause
If the GDI ECO indicator lamp does not go off during high load operation, the causes
listed in the right column are suspected.
D Short circuit between the GDI ECO indicator lamp
and engine-ECU
D Malfunction of the engine-ECU
D Malfunction of the GDI ECO indicator lamp ECU
Measure at GDI ECO indicator lamp ECU connector C-55.
D Disconnect the connector, and measure at the harness side.
D Disconnect the engine-ECU connector.
D Continuity between terminal 3 and earth
OK: No continuity
NG
Check the harness wire between the GDI ECO indication lamp-
ECU and engine-ECU, and repair if necessary.
OK
Replace the engine-ECU.
Check the relative circuits of GDI ECO indication lamp.
(Refer to GROUP 54A-Troubleshooting.)
OK
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