Disconnect the engine coolant temp.sensor
connector and connect a resistor with a resistance
of 4–8 kΩ or send an equivalent simulation signal.
Warm up the oxygen sensor with the engine at 2,500
rpm for approx. 90 seconds. And maintain engine
speed at 2,500 rpm.
Disconnect terminals TE1 and E1 of the DLC
1. And maintain engine speed at 2,500 rpm.
Read and record diagnostic trouble codes.
(See pages EG1–114, 115)
Malfunction code(s)
(ex. code 21, code 25 and code 26)
Malfunction code(s)
(ex. code 21, code 25 and code 261
Connect terminals TE1 and E,1of the DLC 1.
Measure voltage between terminals VF1 and E1.
Measure voltage between terminals VF1 and E1.
Measure voltage between terminals VF1 and E1.
Measure voltage between terminals VFI and E1
Read and record diagnostic trouble codes
Normal code, code 21,
code 25 and code 26
CONTINUED FROM PAGE EG1–212
Repair the relevant diagnostic trouble code.
Repair the relevant diagnostic trouble code.
Normal code, code 21,
code 25 and code 26
Disconnect the PCV hose.
Replace the oxygen sensor.
Repair (Over rich)
Repair (Over lean)
More than 0 V
More than 0 V
–ENGINE MFI SYSTEM
EG1–213
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