Inspection and Verification
WARNING: This page is about a different car, the 2010 Lincoln MKX and 2010 Ford Edge. However, it is still accessible from the selected car via links, so may be relevant.
- Verify the customer concern.
- Visually inspect for obvious signs of electrical damage.
- If an obvious cause for an observed or reported concern is found, correct the cause (if possible) before proceeding to the next step.VISUAL INSPECTION CHART
Electrical - Battery Junction Box (BJB) fuse(s):
- 16 (30A) (no communication with DCSM )
- 21 (7.5A) (no communication with PCM)
- 30 (15A) (no communication with PCM)
- 49 (10A) (no communication with PCM)
- 50 (10A) (no communication with ABS module)
- 51 (5A) (no communication with HCM )
- 59 (30A) (no communication with LTM )
- 60 (30A) (no communication with DSM )
- Smart Junction Box (SJB) fuse(s):
- 3 (15A) (no communication with APIM )
- 5 (10A) (no communication with SJB )
- 11 (10A) (no communication with 4X4 control module)
- 12 (7.5A) (no communication with DSM )
- 13 (5A) (no communication with SDARS module)
- 14 (10A) (no communication with LTM )
- 15 (10A) (no communication with HVAC module, GPSM )
- 18 (20A) (no communication with audio DSP module)
- 20 (15A) (no power to scan tool)
- 26 (10A) (no communication with IC )
- 28 (5A) (no communication with ACM )
- 29 (5A) (no communication with IC )
- 34 (5A) (no communication with SASM )
- 35 (10A) (no communication with PAM , 4X4 control module)
- 37 (10A) (no communication with HVAC module)
- 38 (20A) (no communication with audio DSP module)
- 39 (20A) (no communication with ACM )
- 41 (15A) (no communication with ACM )
- 46 (7.5A) (no communication with RCM , OCSM )
- Data Link Connector (DLC)
- Wiring harness
- Wiring, terminals or connectors
- Battery Junction Box (BJB) fuse(s):
- If an obvious cause for an observed or reported concern is found, correct the cause (if possible) before proceeding to the next step.
- Connect the scan tool to the DLC
.
- If the Integrated Diagnostic System (IDS) does not communicate with the VCM
:
- Check the VCM connection to the vehicle.
- Check the scan tool connection to the VCM .
- GO to PINPOINT TEST X , to diagnose No Power To The Scan Tool.
NOTE: Make sure to use the latest scan tool software release.NOTE: The Vehicle Communication Module (VCM) LED prove-out confirms power and ground from the DLC are provided to the VCM . - If the Integrated Diagnostic System (IDS) does not communicate with the VCM
:
- Establish a scan tool session.
- If an IDS
session cannot be established with the vehicle, (IDS
may state "No communication can be established with the PCM"):
- Choose "NO" when the scan tool prompts whether or not to retry communication.
- Enter either a PCM part number, tear tag or calibration number to identify the vehicle and start a session. The PCM part number and 4-character tear tag are printed on the PCM label. If the PCM part number cannot be found, a base part number search on the HVBOM application (under the OASIS tab on the technician service publication website) retrieves the PCM part number.
- GO to PINPOINT TEST A , to diagnose The PCM Does Not Respond To The Scan Tool.
NOTE: The scan tool first attempts to communicate with the PCM. After establishing communication with the PCM, the scan tool then attempts to communicate with all other modules on the vehicle. - If an IDS
session cannot be established with the vehicle, (IDS
may state "No communication can be established with the PCM"):
- Carry out the network test.
- If the network test passes, retrieve and record the continuous memory DTCs and proceed to Step 6.
- Retrieve and review the DTCs.
- If the DTCs retrieved are related to the concern, go to DTC CHARTS . Follow the non-network DTC diagnostics (B-codes, C-codes, P-codes) prior to the network DTC diagnostics (U-codes). For all other DTCs, refer to the Diagnostic Trouble Code (DTC) Chart in MULTIFUNCTION ELECTRONIC MODULES .
- If no DTCs related to the concern are retrieved, GO to SYMPTOM CHART .