CONTROL SYSTEM - Check Point for Each Terminal (continued)
F-132spec tableTerminal 2H differs between California and Federal/Canada spec vehicles.
Check Point for Each Terminal (1P-2J)
1P
Connection toP/S pressure switch
Abnormal voltageAlways approx. 0V
Possible cause• P/S pressure switch malfunction (Refer to page F-140)
• Short circuit in wiring from ECU terminal 1P to P/S pressure switch
• ECU malfunction
1P
Connection toP/S pressure switch
Abnormal voltageAlways approx. 12V
Possible cause• P/S pressure switch malfunction (Refer to page F-140)
• Open circuit in wiring from ECU terminal 1P to P/S pressure switch
• Open circuit in wiring from P/S pressure switch to ground
1Q
Connection toA/C switch
Abnormal voltageAlways approx. 0V (with blower switch ON)
Possible cause• A/C switch malfunction (Refer to page U-25)
• Short circuit in wiring from ECU terminal 1Q to A/C switch
• Poor connection at ECU connector
• ECU malfunction
1Q
Connection toA/C switch
Abnormal voltageAlways approx. 12V (with blower switch ON) (Blower motor ON)
Possible cause• A/C switch malfunction (Refer to page U-25)
• Open circuit in wiring from ECU terminal 1Q to A/C switch
• Open circuit in wiring from A/C switch to blower control switch
1R
Connection toFan switch
Abnormal voltageAlways approx. 0V (Cooling fan OK)
Possible cause• Open or short circuit in wiring from electric cooling fan relay to ECU terminal 1R
• ECU malfunction
1S
Connection toBlower control switch
Abnormal voltageAlways approx. 0V (Blower fan OK)
Possible cause• Short circuit in wiring from blower control switch to ECU terminal 1S
• Poor connection at ECU connector
• ECU malfunction
1S
Connection toBlower control switch
Abnormal voltageAlways approx. 12V (Blower fan ON)
Possible cause• Open circuit in wiring from blower control switch to ECU terminal 1S
1U
Connection toHeadlight switch
Abnormal voltageAlways approx. 0V (Headlights OK)
Possible cause• Open circuit in wiring from headlight relay to ECU terminal 1U
1V
Connection toNeutral switch / Clutch switch
Abnormal voltageAlways approx. 0V
Possible cause• Neutral switch malfunction (Refer to page F-140)
• Clutch switch malfunction (Refer to page F-139)
• Short circuit in wiring from ECU terminal 1V to neutral or clutch switch
• Poor connection at ECU connector
• ECU malfunction
• Open circuit in wiring from ECU terminal 1V to neutral and clutch switches
2A 2B 2C 2D
Connection toGround
Abnormal voltageMore than 0V
Possible cause• Poor contact at ground terminal
• Open circuit in wiring from ECU to ground
2E
Connection toCrank angle sensor (Ne-signal)
Abnormal voltageAlways approx. 0V or approx. 5V
Possible cause• Refer to Code No. 02 troubleshooting (Refer to page F-82)
2G
Connection toCrank angle sensor (G-signal)
Abnormal voltageAlways approx. 0V or approx. 5V
Possible cause• Refer to Code No. 03 troubleshooting (Refer to page F-82)
2H
Connection toGround (California)
Abnormal voltageApprox. 2V
Possible cause• Open circuit in wiring from ECU terminal 2H to ground
2H
Connection to(Federal and Canada)
Abnormal voltageApprox. 0V
Possible cause• Short circuit in wiring from ECU terminal 2H to ground
2I
Connection toIgniter
Abnormal voltageAlways Approx. 0V
Possible cause• Refer to Code No. 01 troubleshooting (Refer to page F-81)
2J
Connection toGround
Abnormal voltageApprox. 5V
Possible cause• Open circuit in wiring from ECU terminal 2J to ground