Starter Motor Circuit
B: STARTER MOTOR CIRCUITCAUTION: After repair or replacement of faulty parts, conduct CLEAR MEMORY MODE and INSPECTION MODE. Refer to How to Clear Diagnostic Trouble Codes. Clearing Diagnostic Trouble Codes
WIRING DIAGRAM
8B1: CHECK VEHICLE TYPE.
CHECK: Is the vehicle equipped with security system??
YES: Check keyless/security system circuit.
NO: Go to step 8B2.
8B2: CHECK INPUT SIGNAL FOR STARTER MOTOR.
1. Turn ignition switch to OFF.
2. Disconnect connector from starter motor.
3. Turn ignition switch to ST.
4. Measure power supply voltage between starter motor connector terminal and engine ground.
NOTE:
- On AT vehicles, place the selector lever in the "P" or "N" position.
- On MT vehicles, depress the clutch pedal.
CHECK: Is the voltage more than 10 V?
YES: Go to step 8B3.
NO: Go to step 8B4.
8B3: CHECK GROUND CIRCUIT OF STARTER MOTOR.
1. Turn ignition switch to OFF.
2. Disconnect terminal from starter motor.
3. Measure resistance of ground cable between ground cable terminal and engine ground.
CHECK: Is resistance less than 5 ohm?
YES: Check starter motor.
NO: Repair open circuit of ground cable.
8B4: CHECK HARNESS BETWEEN BATTERY AND IGNITION SWITCH CONNECTOR.
1. Turn ignition switch to OFF.
2. Remove SBF No. 4 from main fuse box.
3. Measure resistance of fuse.
CHECK: Is the resistance less than ohm?
YES: Replace SBF No. 4.
NO: Go to step 8B5.
8B5: CHECK HARNESS BETWEEN BATTERY AND IGNITION SWITCH CONNECTOR.
1. Install SBF No. 4 to main fuse box.
2. Turn ignition switch to ON.
Connector & Terminal (B72) No.1 (+) Chassis Ground (-):
3. Measure power supply voltage between ignition switch connector and chassis ground.
CHECK: Is the voltage more than 10 V?
YES: Go to step 8B6.
NO: Repair open circuit in harness between ignition switch and SBF No. connector.
8B6: CHECK TRANSMISSION TYPE.
CHECK: Is transmission type AT?
YES: Go to step 8B7.
NO: Go to step 8B11.
8B7: CHECK INHIBITOR SWITCH CIRCUIT.
1) Turn ignition switch to OFF.
2) Place the selector lever in the "P" or "N" position.
Connector & Terminal (T3) No.11 - No.12:
3) Measure resistance between transmission harness connector receptacle's terminals.
CHECK: Is the resistance less than 1 Ohm?
YES: Repair open circuit in harness between starter motor and ignition switch connector.
NO: Go to step 8B8.
8B8: CHECK TRANSMISSION HARNESS.
1) Disconnect connector from inhibitor switch.
Connector & Terminal (T3) No.12 - (T7) No.1:
2) Measure resistance of harness between transmission harness and inhibitor switch connector.
Connector & Terminal (T3) No.12 - (T7) No.1:
CHECK: Is the resistance less than 1 Ohm?
YES: Go to step 8B9.
NO: Repair open circuit in harness between transmission harness and inhibitor switch connector.
8B9: CHECK TRANSMISSION HARNESS.
Connector & Terminal (T3) No.12 - (T7) No.1:
Measure resistance of harness between transmission harness and inhibitor switch connector.
CHECK: Is the resistance less than 1 Ohm?
YES: Go to step 8B10.
NO: Repair open circuit in harness between transmission harness and inhibitor switch connector.
8B10: CHECK POOR CONTACT.
Check poor contact in inhibitor switch connector.
CHECK: Is there poor contact in inhibitor switch connector?
YES: Repair poor contact in inhibitor switch connector.
NO: Replace inhibitor switch.
8B11: CHECK STARTER INTERLOCK CIRCUIT.
1) Turn ignition switch to "ST'.
Connector & Terminal (B106) No.2 (+) - Chassis Ground (-):
2) Measure voltage between clutch switch connector and chassis ground.
CHECK: Is the voltage more than 10 V?
YES: Replace starter interlock relay.
NO: Go to step 8B12.
8B12: CHECK STARTER INTERLOCK CIRCUIT.
1) Turn ignition switch to OFF.
Connector & Terminal (B106) No.1 - No.2:
2) Measure resistance between clutch switch connector terminals while depressing the clutch pedal.
CHECK: Is the resistance less than 10 Ohms?
YES: Repair open circuit in harness between starter motor and ignition switch connector.
NO: Replace clutch switch.