POWER SUPPLY AND GROUND CIRCUIT

1. Turn the ignition switch OFF.
2. Disconnect the E-SUS control unit harness connector.
3. Check the voltage between the E-SUS control unit harness connector.
   

   E-SUS control unit				Voltage
   Connector	Between terminals
   M110	23 – 22			Battery voltage
   	19 – 22			0 V

   
   
4. Turn the ignition switch ON.
   ■ CAUTION ■
   Never start engine.
   
5. Check the voltage between the E-SUS control unit harness connector.
   

   E-SUS control unit				Voltage
   Connector	Between terminals
   M110	23 – 22			Battery voltage
   	19 – 22

   
   

YES>>GO TO 2.

NO>>
Check the following items, and repair or replace the malfunctioning parts.

• Open circuit in 15 A fuse (#37)
  
• Short circuit between the 15 A fuse (#37) connector and E-SUS control unit harness connector terminal 23
  
• Open circuit between the battery and E-SUS control unit harness connector terminal 23
  
• Open circuit in 10 A fuse (#45)
  
• Short circuit between the 10 A fuse (#45) connector and E-SUS control unit harness connector terminal 19
  
• Short circuit between the 10 A fuse (#45) connector and set-up switch (suspension) harness connector terminal 18
  
• Open circuit between the ignition switch and E-SUS control unit harness connector terminal 19
  
• Battery or ignition switch
  

1. Turn the ignition switch OFF.
2. Check the continuity between the E-SUS control unit harness connector and ground.
   

   E-SUS control unit				Continuity
   Connector	Terminal
   M110	22 – Ground			Existed

   
   

YES>>INSPECTION END

NO>>Repair or replace the malfunctioning harness or connector.