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FUEL INJECTION SYSTEM
4 FI diagnostic tool malfunction Replace the FI diagnostic
tool.
Set the switch on the
FI diagnostic tool sub-
wire harness to "ON",
and then check the
fault code display.
Fault code number
is not displayed →
Service is finished.
Fault code number
is displayed → Re-
fer to item 5.
5 Malfunction in ECU. Replace the ECU.
Fault code No. Er-4
Symptom Registered data cannot be received from the FI diagnostic tool.
Fail-safe system Able to start
Able to drive
Diagnostic code No. —
FI diagnostic tool dis-
play
—
Checking method —
Item Item/components and probable cause Check or maintenance job Checking method