1.CHECK BACK-UP LAMP BULB
 
 2.CHECK BACK-UP LAMP FUSE
 
 3.CHECK BACK-UP LAMP RELAY POWER SUPPLY (CONTACT SIDE)
 
 4.CHECK BACK-UP LAMP RELAY POWER SUPPLY (COIL SIDE)
 
 5.CHECK BACK-UP LAMP RELAY
 
 6.CHECK BACK-UP LAMP OPEN CIRCUIT
 
 7.CHECK BACK-UP LAMP GROUND OPEN CIRCUIT
 
 8.CHECK BACK-UP LAMP CONTROL SIGNAL OPEN CIRCUIT