Test A: The Engine Does Not Crank And The Relay Does Click
PINPOINT TEST A: THE ENGINE DOES NOT CRANK AND THE RELAY DOES CLICKA1:
A2-A4:
A5-A7:
A8-A9:
Normal Operation
In normal operation, when the ignition switch is placed in the start position voltage is supplied through circuit CDC35 (BU/WH) to the smart power distribution junction box (SPDJB). From the SPDJB, voltage is supplied through circuit CDC38 (WH/VT) to the starter relay coil located in the power distribution box (PDB). The starter relay coil is supplied ground from the powertrain control module (PCM) through circuit CDC12 (YE).
When the starter relay is energized, voltage supplied to the relay switch from PDB fuse 40 (30A) is sent to the starter motor solenoid through circuit CDC25 (BN/GN). Battery voltage is supplied to the starter motor through circuit SDC02 (RD) at all times.
Possible Causes
- Failed PDB fuse 40 (30A)
- An open in circuit CDC25 (BN/GN), SDC04 or SDC02 (RD)
- Starter motor relay
- Starter