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EC-1156
[YD (WITH EURO-OBD)]
DTC P2146, P2149 FUEL INJECTOR POWER SUPPLY
: Average voltage for pulse signal (Actual pulse signal can be confirmed by oscilloscope.)
On Board Diagnosis Logic EBS011EX
21
22
23
24
G/R
GY/L
G/R
GY/L
Fuel injector No. 2
Fuel injector No. 2
Fuel injector No. 3
Fuel injector No. 3
[Engine is running]
● Warm-up condition
● Idle speed
0 - 9V
[Engine is running]
● Warm-up condition
● Engine speed is 2,000 rpm
0 - 9V
40
41
42
43
G/R
GY/L
G/R
GY/L
Fuel injector No. 4
Fuel injector No. 4
Fuel injector No. 1
Fuel injector No. 1
[Engine is running]
● Warm-up condition
● Idle speed
0 - 9V
G/R
[Engine is running]
● Warm-up condition
● Engine speed is 2,000 rpm
0 - 9V
TERMI-
NAL
NO.
WIRE
COLOR
ITEM CONDITION
DATA
(DC Voltage and Pulse Signal)
MBIB0881E
MBIB0882E
MBIB0882E
DTC No. Trouble diagnosis name DTC detecting condition Possible cause
P2146
No. 1 and 4 cylinder fuel
injector power supply cir-
cuit open
An improper voltage signal is sent to ECM
through No. 1 and 4 cylinder fuel injector.
● Harness or connectors
(The fuel injector circuit is open.)
P2149
No. 2 and 3 cylinder fuel
injector power supply cir-
cuit open
An improper voltage signal is sent to ECM
through No. 2 and 3 cylinder fuel injector.
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