Pinpoint Test

VERIFY THE SCAN TOOL CAN COMMUNICATE WITH THE PCM
1. Connect the scan tool.
2. Ignition ON.
3. Check that a vehicle session can be established using the scan tool.
Can a vehicle session be established?
- Yes: GO to 2 .
- No: REFER to DIAGNOSTIC ROUTINE A : The Powertrain Control Module (PCM) Does Not Respond To The Scan Tool.
CHECK THE BCM CONTINUOUS MEMORY DTCs
1. Using a scan tool, perform BCM self-test.
2. Clear the DTCs . Repeat the BCM self-test.
Is DTC U0100:00 retrieved again?
- Yes: GO to 3 .
- No: The system is operating correctly at this time. The DTC may have been set due to high network traffic or an intermittent fault condition.
RETRIEVE THE RECORDED DTCs FROM THE BCM SELF-TEST
1. Check for recorded BCM DTCs from the self-test.
Is DTC U3003:16 or DTC U3003:17 recorded?
- Yes: For DTC U3003:16, REFER to Diagnostic Routine H: DTC U3003:16 .
  For DTC U3003:17, REFER to Diagnostic Routine I: DTC U3003:17 .
- No: GO to 4 .
CHECK FOR DTC U0100:00 OR DTC U0100 SET IN OTHER MODULES
1. Ignition ON.
2. Using a scan tool, retrieve the continuous memory DTCs from all modules.
Is DTC U0100:00 or DTC U0100 set in any other module?
- Yes: INSTALL a new PCM. REFER to POWERTRAIN CONTROL MODULE (PCM) - 2.0L GTDI , or POWERTRAIN CONTROL MODULE (PCM) - 3.5L TI-VCT . CLEAR the DTCs .
- No: INSTALL a new BCM. REFER to Body Control Module (BCM) - with Intelligent Access (IA) or REFER to Body Control Module (BCM) - without Intelligent Access (IA) .