TOHATSU 200 Series Service Manual page 66

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FUEL SYSTEM
9. Trim angle sensor power line short circuit
inspection 2
Measure the voltage between the trim angle sensor
3P connector
(Brown/White) terminal and engine ground.
Is the measurement within 4.75 – 5.25 V?
YES
NO
DTC 1-4 (ABNORMAL HO2S) (Except
XT, XCT, XXT, XXCT types)
(*) Refer
(BF175AK1·200AK1·225AK1: 62ZY300).
1. Symptom reproduction test
Turn the combination switch OFF.
Disconnect the HO2S 4P connector
connector A
connector 1
Clear the DTC (page 5-2).
• Continue the procedure if the DTC does not
clear.
Start the engine and let it run at 3,000 min
5 minutes or more under no load.
Let the engine idle for 1 minute or more.
Check the DTC using the HDS.
Does the DTC 1-4 appear?
YES
NO
2. HO2S inspection
Turn the combination switch OFF and disconnect
the HO2S 4P connector
Inspect the HO2S (page 5-60).
Is the HO2S correct?
YES
NO
3. Fuel supply system inspection
Measure the fuel pressure (page 5-114*).
Is the fuel pressure normal?
YES
NO
5-10
main wire harness side No.3
– Replace the ECM with a new one and
recheck.
– Repair short in the main wire harness
between the ECM and the trim angle
sensor.
to page of base
, ECM connector B
and then reconnect them.
– GO TO STEP 2.
– Temporary failure (code
reappear).
.
– GO TO STEP 3.
– Replace the HO2S with a new one and
recheck.
– Repair open or short in the main wire
harness between the ECM and HO2S. If
the main wire harness is correct, replace
the ECM with a new one, and recheck.
– Repair fuel supply system and recheck
under normal fuel pressure.
TRIM ANGLE SENSOR 3P CONNECTOR
MAIN WIRE HARNESS SIDE
shop manual
, ECM
, joint
-1
(rpm) for
does not
VCC3
(Brown/White)