Test NS-9B - Repairing No Crank Condition
NOTE:
For connector terminal identification, see CONNECTOR IDENTIFICATION . For wiring diagram, see WIRING DIAGRAMS - 2.0L & 2.4L
article in ENGINE PERFORMANCE. After each repair, perform TEST VER-1.
- Remove starter relay. Using scan tool in ohmmeter mode, check resistance of starter relay connector terminal "C" (Dark Green/Black wire on FJ22 and F24S bodies; Black/White wire on JA body; Black wire on PL body). If resistance is more than 5 ohms, repair open Dark Green/Black wire, Black/White wire or Black wire. If resistance is less than 5 ohms, go to next step.
- Using scan tool in voltmeter mode, check voltage on starter relay connector terminal "A" on FJ22 and F24S bodies (Black/Red wire), or " B" on JA and PL bodies (Red wire). If voltage is less than 11.6 volts, repair open Black/Red wire or Red wire. If voltage is more than 11.6 volts, go to next step.
- Using an external voltmeter, check voltage on starter relay connector terminal "B" on FJ22 and F24S bodies (Black/Red wire), or "A" on JA and PL bodies (Yellow/Orange wire on JA body; Yellow/Black wire on PL body). If voltage is more than 10 volts, go to step 5). If voltage is less than 10 volts, go to next step.
- Check if clutch switch circuit is open. Replace clutch switch if necessary. If clutch switch is okay, repair open ignition switch Start circuit (Black/Red wire on FJ22 and F24S bodies; Yellow/White wire on JA and PL bodies).WARNING: Engine may crank in following step. Keep away from moving engine parts.
- Ensure transmission is in Neutral position and parking brake is set. Briefly connect a jumper wire between starter relay connector terminals "A" (Black/Red wire) and "D" (Black/Yellow wire) on FJ22 and F24S bodies, "B" (Red wire) and "D" (Brown wire) on JA body, or "B" (Red wire) and "E" Brown wire) on PL body. If starter motor cranks, replace starter relay. If starter motor does not crank, go to next step.
- If starter solenoid clicks when jumper wire is connected, go to step 8). If starter solenoid does not click when jumper wire is connected, disconnect jumper wire. Disconnect starter relay output wire (Black/Yellow wire on FJ22 and F24S bodies; Brown wire on JA and PL bodies) from starter solenoid. Go to next step.
- Using an external ohmmeter, check resistance of starter relay output wire (Black/Yellow wire on FJ22 and F24S bodies; Brown wire on JA and PL bodies) between starter solenoid connector terminal No. 1 and starter relay connector terminal "D". If resistance is more than 5 ohms, repair open Black/Yellow wire or Brown wire. If resistance is less than 5 ohms, go to next step.
- Reinstall starter relay. Check battery cables for voltage drop. If either cable has a voltage drop of more than 0.2 volt, replace battery cable(s). If battery cables are okay, go to next step.
- Attempt to manually rotate crankshaft 360 degrees. If crankshaft does not rotate, repair engine mechanical problem. If crankshaft rotates, replace starter motor.