B Terminal Circuit

B TERMINAL CIRCUIT





Description
Terminal "2" (B) is constantly supplied with battery power.




Diagnosis Procedure
Regarding Wiring Diagram information, Starting System With Clutch Interlock Cancel System or Starting System Without Clutch Interlock Cancel System.

CAUTION:
Perform diagnosis under the condition that the engine cannot start by the following procedure.
1. Remove fuel pump fuse.
2. Crank or start the engine (where possible) until the fuel pressure is depleted.
1.CHECK TERMINAL 2 POWER SUPPLY VOLTAGE
1. Turn ignition switch OFF.
2. Make sure that starter motor connector E210 terminal 2 connection is clean and tight.





3. Check voltage between starter motor connector E210 terminal 2 and ground.






Is there battery voltage present?
YES - GO TO 2
NO - Check harness between battery and starter motor for open circuit.
2.CHECK BATTERY CABLE (VOLTAGE DROP TEST)
1. Shift the transmission into park or neutral.
2. Depress clutch pedal if the vehicle is equipped with M/T.





3. Check voltage between battery positive terminal and starter motor connector E210 terminal 2 while cranking the engine.






Is the voltage drop less than 0.2V?
YES - GO TO 3
NO - Check harness between the battery and the starter motor for high resistance.
3.CHECK GROUND CIRCUIT STATUS (VOLTAGE DROP TEST)





Check voltage between starter motor case and battery negative terminal while cranking the engine.






Is the voltage drop less than 0.2V?
YES - Terminal 2 circuit is OK. Further inspection necessary. Initial Inspection and Diagnostic Overview.
NO - Check the starter motor case to engine mounting for high resistance.