Circuit/System Testing

• If voltage is less than 12 V or greater than 15 V 

  Refer to Battery Inspection/Test .

• If voltage is between 12-15V 

for 2.0L liter engine or Drive Belt Replacement for 2.2L or 2.4L engine

• If the crankshaft does not rotate 

  Refer to Engine Will Not Crank - Crankshaft Will Not Rotate (LDK, LHU) , for 2.0L engine or Engine Will Not Crank - Crankshaft Will Not Rotate for 2.2L or 2.4L engine.

• If the crankshaft rotates 

• If the engine cranks 

  Inspect the engine and belt drive system for mechanical binding, seized engine, or seized generator.

• If the engine does not crank 

• If the test lamp does not illuminate and the circuit fuse is good 

1. Ignition OFF.
2. Test for less than 2 Ω in the B+ circuit end to end.
   • If 2 Ω or greater, repair the open/high resistance in the circuit.
   • If less than 2 Ω, verify the fuse is not open and there is voltage at the fuse.

• If the test lamp does not illuminate and the circuit fuse is open 

1. Ignition OFF.
2. Test for greater than 100 Ω between the B+ circuit and ground.
   • If 100 Ω or less, repair the short to ground on the circuit.
   • If greater than 100 Ω, replace the M64 starter motor.

• If the test lamp illuminates 

• If 0.5 V or greater 

  Replace the positive battery cable.

• If less than 0.5 V 

• If 0.5 V or greater 

  Replace the negative battery cable.

• less than 0.5 V