TOHATSU BFT115A Service Manual page 148

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
Black) terminal and engine ground.
Is there continuity?
YES
NO
DTC 7-2 (TP SENSOR VOLTAGE IS TOO HIGH)
• When the DTC code 6-2, 7-2, 10-2, 22-2, 140-2,
141-2, and 143-2 are indicated at the same time, the
ground line (SG2) is open.
1. Symptom reproduction test
Turn the combination switch OFF.
Disconnect the TP sensor 3P connector
ECM connector A
and joint connector 2
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
NO
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
NO
5-30
12
main wire harness side No.2 (Red/
20
– Repair short in the Red/Black wire.
– Replace the throttle body with a new one
and recheck.
, ECM connector B
12
, and then reconnect
28
– Temporary failure (code
reappear)
– GO TO STEP 2.
– Replace the ECM with a new one and
recheck.
– Repair the open circuit in the Green/Red
wire. If the main wire harness is normal,
replace the throttle body with a new one
and recheck.
.
,
20
,
13
does not