TIP
Disconnect the ECU related connectors before checking.
Refer to "PARTS CONNECTED TO THE ECU" on page 9-3.
Ground short circuit check "A"
Between O
sensor 2 coupler "1" and ground
2
Lines short circuit check "B"
O
sensor 2 coupler
2
ECU coupler "2"
A
1
R/W P/W
Gy/Y B/L
Is resistance ∞ Ω?
YES
→ Go to step 5.
NO
a. Replace the wire harness.
b. Start the engine and let it idle for approximately 1 minute.
c. Check the condition of the DTC using the malfunction mode of the YDT.
Is it in the "Recovered" condition?
YES
→ Go to step 8, and complete the service.
NO
→ Go to step 5.
5. Check fuel pressure.
• Check the fuel pressure.
Refer to "CHECKING THE FUEL PRESSURE" on page 7-18.
Is check result OK?
YES
→ Go to step 6.
gray/yellow–ground
pink/white–ground
black/blue–ground
red/white–ground
gray/yellow–any other coupler terminal
pink/white–any other coupler terminal
black/blue–any other coupler terminal
red/white–any other coupler terminal
gray/yellow–any other coupler terminal
pink/white–any other coupler terminal
black/blue–any other coupler terminal
B
1
R/W P/W
Gy/Y B/L
2
L/B
P/W P
L/W
Gy/G
B/Y
L/Y
L/W
Gy/Y
9-103
P00D3, P2197
2
Y/R
P/W
Lg/R
L/R
R/L
G/Y
Br/R Br/Y
R/G
Y/B
L/W
V
L
L/R
Gy
Br/W
W
W/B
B/L
G/W G
Gy/B
W/L
P/B
O/G
Gy/G
O
Gy/R
L/B
O/B R/B
G/B
B
Br/B
W/L
Sb/W B
Y/L
Sb
R/L B/W
B/W