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Symptom Chart

Condition Possible Sources Action
The engine does not crank - Without Intelligent Access (IA) Battery
Battery cables
Fuses
Ignition switch
Starter motor
BJB Starter Relay
Run/start relay
PCM
Transmission Range (TR)
Passive Anti-Theft System (PATS)
Body Control Module (BCM)
Wiring, terminals or connectors
GO to Pinpoint Test A .
The engine does not crank - With IA Battery
Battery cables
Fuses
Start/stop switch
Brake switch
Starter motor
BJB Starter Relay
Run/start relay
PCM
TR sensor
PATS
BCM
Remote Function Actuator (RFA) module
Wiring, terminals or connectors
GO to Pinpoint Test B .
The engine cranks slowly Battery
Starter motor
Wiring, terminals or connectors
CARRY OUT the Starter Motor - Feed Circuit Test  and Starter Motor - Ground Circuit Test  Tests.
The engine cranks but does not start Fuses
PCM
Fuel pump
Fuel pump relay
REFER to Engine Controls - Introduction (Except Diesel & Hybrid)
Unusual starter noise Starter motor
Starter motor mounting
Starter motor engagement
Flexplate ring gear
GO to Pinpoint Test C .
The starter spins but the engine does not crank Starter motor INSPECT the starter motor mounting and engagement. REPAIR as necessary.
Damaged flexplate INSPECT the flexplate for damaged, missing or worn teeth. REPAIR as necessary.
The starter does not disengage from the Flexplate BJB Starter Relay
Wiring, terminal or connectors
REMOVE the BJB Starter Relay, if the engine stops cranking INSTALL a new relay. If the engine continues to crank, REPAIR circuit CDC25 (BN/GN) for a short to voltage.
The remote start system operates with reduced range External antenna
Tire Pressure Monitor Module (TPM)
Wiring, terminals or connectors
GO to Pinpoint Test E .
The remote start is inoperative Wiring, terminals or connectors
Remote start feature enabled
Integrated Keyhead Transmitter (IKT) (without IA)
IA key (with IA)
External antenna
Hood switch Input
PCM
GO to Pinpoint Test F .