CONTROL SYSTEM - Check Point for Each Terminal (continued)
F-133spec tableCheck Point for Each Terminal (2K-2X)
2K
Connection toAirflow meter
Abnormal voltageAlways approx. 0V
Possible cause• Short circuit in wiring from ECU terminal 2K to airflow meter
• Poor connection at ECU connector
• ECU malfunction
2K
Connection toAirflow meter
Abnormal voltageBelow 4.5V or above 5.5V
Possible cause• ECU malfunction
2L
Connection toThrottle sensor (Power terminal)
Abnormal voltageAlways approx. 0V
Possible cause• Throttle sensor malfunction (Refer to page F-136)
• Short circuit in wiring from ECU terminal 2L to throttle sensor
• Poor connection at ECU connector
• ECU malfunction
2L
Connection toThrottle sensor (Power terminal)
Abnormal voltageAlways approx. 5V
Possible cause• Throttle sensor misadjustment (Refer to page F-136)
• Open circuit in wiring from ECU terminal 2L to throttle sensor
• Open circuit in wiring from throttle sensor to ground
2N
Connection toOxygen sensor
Abnormal voltage0V after warm-up
Possible cause• Refer to Code No. 15 troubleshooting (Refer to page F-86)
2N
Connection toOxygen sensor
Abnormal voltageAlways approx. 1V after warm-up
Possible cause• Refer to Code No. 17 troubleshooting (Refer to page F-86)
2O
Connection toAirflow meter
Abnormal voltageAlways approx. 0V or approx. 5V
Possible cause• Refer to Code No. 08 troubleshooting (Refer to page F-84)
2P
Connection toAirflow meter (Intake air thermosensor)
Abnormal voltageAlways approx. 0V or approx. 5V
Possible cause• Refer to Code No. 10 troubleshooting (Refer to page F-85)
• Intake air thermosensor malfunction (Refer to page F-135)
2Q
Connection toWater thermosensor
Abnormal voltageAlways approx. 0V or approx. 5V
Possible cause• Refer to Code No. 09 troubleshooting (Refer to page F-85)
• Water thermosensor malfunction (Refer to page F-136)
2U / 2V
Connection toInjector
Abnormal voltageAlways approx. 0V
Possible cause• Main relay malfunction (Refer to page F-139)
• Open or short circuit in wiring from injector to ECU terminal 2U or 2V
2U / 2V
Connection toInjector
Abnormal voltageAlways approx. 12V
Possible cause• ECU malfunction
2W
Connection toISC valve
Abnormal voltageAlways approx. 0V or approx. 12V
Possible cause• Refer to Code No. 34 troubleshooting (Refer to page F-87)
• ISC valve malfunction (Refer to page F-99)
2X
Connection toSolenoid valve (Purge control)
Abnormal voltageAlways approx. 0V or approx. 12V
Possible cause• Refer to Code No. 26 troubleshooting (Refer to page F-87)
• Solenoid valve (Purge control) malfunction (Refer to page F-119)
Figure reference: 05U0FX-202