Diagnostic Test

WARNING: This page is about a different variant/trim than selected.

CHECK FOR AN ACTIVE DTC
1. Start the engine or crank the engine if it will not start.
2. With the scan tool, read DTCs and Freeze Frame Data and record on the repair order.
  Is the DTC active or pending?
  
  Yes
  - Go To 2
  No
  - Perform the INTERMITTENT CONDITION diagnostic procedure. Refer to INTERMITTENT CONDITION .
CHECK FOR OTHER DTCS
1. Refer to the recorded DTCs.
  Are there any ASD Relay or Ignition Coil Control circuit DTCs active or pending?
  
  Yes
  - Perform the applicable diagnostic procedure(s). Refer to DTC INDEX .
  No
  - Go To 3
CHECK THE ASD RELAY OUTPUT CIRCUIT
1. Turn the ignition off.
2. Disconnect the Ignition Coil harness connectors.
3. Turn the ignition on.
4. Using a 12-volt test light connected to ground, probe the ASD Relay Output circuit at the Ignition Coil harness connectors.
  Does the test light illuminate brightly?
  
  Yes
  - Replace the Ignition Coils in accordance with the Service Information.
  - Perform the POWERTRAIN VERIFICATION TEST. Refer to POWERTRAIN VERIFICATION TEST .
  No
  - Go To 4
CHECK THE ASD RELAY OUTPUT CIRCUIT FUSE
1. Using the wiring information as a guide, check the fuse that supplies Battery voltage to the ASD Relay Output circuit.
  Is the fuse open?
  
  Yes
  - Go To 5
  No
  - Repair the ASD Relay Output circuit for an open circuit.
  - Perform the POWERTRAIN VERIFICATION TEST. Refer to POWERTRAIN VERIFICATION TEST .
CHECK THE IGNITION COILS FOR AN INTERNAL SHORT
1. Replace the fuse.
2. Disconnect all of the Ignition Coils on bank 1.
3. Start the engine or crank the engine if it will not start.
4. Check the fuse that supplies Battery voltage to the ASD Relay Output circuit.
  Is the fuse open?
  
  Yes
  - Repair the ASD Relay Output circuit for a short to ground.
  - Perform the POWERTRAIN VERIFICATION TEST. Refer to POWERTRAIN VERIFICATION TEST .
  No
  - Connect the Ignition Coils one at a time and retest. Replace the Ignition Coil that causes the fuse to become open.
  - Perform the POWERTRAIN VERIFICATION TEST. Refer to POWERTRAIN VERIFICATION TEST .