Chapter 8 Information service Section 1Troubleshooting
8-2
MALFUNCTION
CODE
DETECTED ITEM
DETECTED FAILURE CONDITION
CHECK FOR
P0122
TP
Sensor
Circuit
Low
Voltage
or Open
The sensor should produce following voltage.
0.2 V≤Sensor output voltage
Without the above range for7.8sec.and more,0122is indicated.
Throttle position sensor, lead wire / coupler connection.
P0123
High
Voltage
The sensor should produce following voltage.Sensor output
voltage ≤4.9 V
Without the above range for7.8sec.and more,0123is indicated.
Throttle position sensor, lead wire / coupler connection.
P0131
O
2
Scircuit
Low
Voltage
Afterenginerunning,theoxygensensorsignalisinputtedinECU
since then 300sec.
Inthiscase,thesensorvoltageshouldbethefollowing.
30mV≤Sensoroutputvoltage
Without theaboverangefor28.1sec.Andmore,0131isindicated.
Oxygen sensor, lead wire / coupler connection.
P0132
High
Voltage
Afterenginerunning,theoxygensensorsignalisinputtedinECU
since then 300sec.
In this case,the sensor voltage should be
thefollowing.
Sensor output voltage ≤ 1.0V
Withouttheaboverangefor29.4sec.Andmore,0132isindicated.
Oxygen sensor, lead wire / coupler connection.
P0261
Fuel Injector
Circuit
Low
After engine running, if fuel injector signal open or is happened
the ground short fault for 1second by 5 times in10 times test
cycle,the code P0261 is indicated.
P0262
Short High
After engine running, if fuel injector signal is happened
short fault for 1second by 5 times in10 times test cycle, the
code P0262 is indicated.
P0231
Fuel pump
Circuit
Low
Voltage
or Open
After engine running, if fuel pump relay signal open or is
happenedthegroundshortfaultfor1secondby10timesin20
timestestcycle,thecode0230isindicated.
Fuel pump relay, connecting lead wire, power source to fuel
pump relay, fuel injector.
P0232
High
Voltage
Afterenginerunning,iffuelpumprelaysignalishappenedthe
highshortfaultfor1secondby10timesin20timestest
code 0232 isindicated.
Fuel pump relay, connecting lead wire, power source to fuel
pump relay, fuel injector.
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