TOHATSU BFT 250A, Руководство по обслуживанию

Страница: 151 / 639

5-29
dummyhead dummyhead
FUEL SYSTEM
3. TP sensor signal line short circuit inspection
Turn the combination switch OFF.
Disconnect ECM connector A
.
Check for continuity between the TP sensor 3P
connector
main wire harness side No.2 (Red/
Black) terminal and engine ground.
Is there continuity?
YES – Repair short in the main wire harness
between the ECM and TP sensor.
NO – Replace the throttle body with a new one
and recheck.
DTC 7-2 (TP SENSOR VOLTAGE IS TOO HIGH)
1. Symptom reproduction test
Turn the combination switch OFF.
Disconnect the TP sensor 3P connector
,
ECM connector A , ECM connector B ,
joint connector 1 and then reconnect them.
Clear the DTC (page 5-6).
• Continue the procedure if the DTC does not
clear.
Turn the combination switch ON.
Measure the TP sensor voltage using the HDS.
Is the measurement within 0.23 – 4.89 V?
YES – Temporary failure (code does not
reappear).
NO – GO TO STEP 2.
2. TP sensor inspection
Turn the combination switch ON and measure the
TP sensor voltage using the HDS.
Is the measurement within 4.49 – 4.85 V when
the throttle is fully open and within 0.44 – 0.56 V
when the throttle is fully closed?
YES – Replace the ECM with a new one and
recheck.
NO – Repair the open circuit in the Green/Red
wire between the TP sensor and the ECM.
If the main wire harness is correct, replace
the throttle body with a new one and
recheck.