Inspection & Verification
WARNING: This page is about a different car, the 2009 Mercury Grand Marquis and 2009 Ford Crown Victoria. However, it is still accessible from the selected car via links, so may be relevant.
WARNING:
If equipped with fire suppression system, refer to FIRE SUPPRESSION SYSTEM
article for Important Safety Warnings. Failure to follow this instruction may result in serious personal injury.
WARNING:
Always disconnect the battery ground cable at the battery before disconnecting the starter motor battery terminal lead. If a tool is shorted at the starter motor battery terminal, the tool can quickly heat enough to cause a skin burn. Failure to follow this instruction may result in serious personal injury.
NOTE:
When working on the starter system, make sure the anti-theft system is operational.
- Verify the customer concern by operating the starting system.
- Visually inspect for obvious signs of mechanical and electrical damage. Refer to the following chart.VISUAL INSPECTION CHART
Mechanical Electrical - Starter motor
- Starter solenoid
- Flexplate
- Battery
- Battery Junction Box (BJB) fuse(s):
- 105 (30A)
- 1 (30A)
- Central Junction Box (CJB) fuse 1 (10A)
- Damaged wiring harness
- Loose or corroded connections
- Starter relay
- Anti-theft system
- If an obvious cause for an observed or reported concern is found, correct the cause (if possible) before proceeding to the next step.
- If the cause is not visually evident, connect the scan tool to the Data Link Connector (DLC).
- If the scan tool does not communicate with the VCM:
- check the VCM connection to the vehicle.
- check the scan tool connection to the VCM.
- refer to MODULE COMMUNICATIONS NETWORK article, No Power To The Scan Tool, to diagnose no power to the scan tool.
- If the scan tool does not communicate with the vehicle:
- verify the ignition key is in the ON position.
- verify the scan tool operation with a known good vehicle.
- refer to MODULE COMMUNICATIONS NETWORK article to diagnose no response from the PCM.
- Carry out the network test.
- If the scan tool responds with no communication for one or more modules, refer to MODULE COMMUNICATIONS NETWORK article.
- If the network test passes, retrieve and record Continuous Memory Diagnostic Trouble Codes (CMDTCs).
- Clear the continuous DTCs and carry out the self-test diagnostics for the instrument cluster and PCM.
- If the DTCs retrieved are related to the concern, go to PCM DIAGNOSTIC TROUBLE CODE INDEX or PASSIVE ANTI-THEFT SYSTEM (PATS) DIAGNOSTIC TROUBLE CODE INDEX . For all other DTCs, refer to MULTIFUNCTION ELECTRONIC MODULES article.
- If no DTCs related to the concern are retrieved, go to Symptom Chart .
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.
PCM DIAGNOSTIC TROUBLE CODE INDEX
| DTC | Description | Action |
|---|---|---|
| P0705 | Digital Transmission Range (TR) sensor circuit failure | Refer to the appropriate Automatic Transmission article for the procedure. |
| P0708 | Digital TR sensor circuit open | Refer to the appropriate Automatic Transmission article for the procedure. |
| P1702 | Intermittent DTC P0705 or P0708 | Refer to the appropriate Automatic Transmission article for the procedure. |
| P1704 | Digital TR circuit reading in between gear position during KOEO/KOER | Refer to the appropriate Automatic Transmission article for the procedure. |
| P1705 | Digital TR self test was not carried out in PARK or NEUTRAL | Refer to the appropriate Automatic Transmission article for the procedure. |
PASSIVE ANTI-THEFT SYSTEM (PATS) DIAGNOSTIC TROUBLE CODE INDEX
| DTC | Description | Source | Action |
|---|---|---|---|
| B1213 | Anti-Theft Number of Programmed Keys is Below Minimum | PCM | REFER to ANTI-THEFT - PASSIVE ANTI-THEFT SYSTEM (PATS) article. |
| B1342 | ECU is Defective | PCM | CLEAR the DTCs. REPEAT the self-test. If DTC B1342 is retrieved again, INSTALL a new PCM. REFER to ELECTRONIC ENGINE CONTROLS article. |
| B1600 | Passive Anti-Theft System (PATS) Ignition Key Transponder Signal Is Not Received | PCM | REFER to ANTI-THEFT - PASSIVE ANTI-THEFT SYSTEM (PATS) article. |
| B1601 | PATS Received Incorrect Key-Code From Ignition Key Transponder | PCM | REFER to ANTI-THEFT - PASSIVE ANTI-THEFT SYSTEM (PATS) article. |
| B1602 | PATS Received Invalid Format of Key-Code From Ignition Key Transponder | PCM | REFER to ANTI-THEFT - PASSIVE ANTI-THEFT SYSTEM (PATS) article. |
| B1681 | PATS Transceiver Module Signal Is Not Received | PCM | REFER to ANTI-THEFT - PASSIVE ANTI-THEFT SYSTEM (PATS) article. |
| B2103 | Antenna Not Connected | PCM | REFER to ANTI-THEFT - PASSIVE ANTI-THEFT SYSTEM (PATS) article. |
| B2431 | Transponder Programming Failed | PCM | REFER to ANTI-THEFT - PASSIVE ANTI-THEFT SYSTEM (PATS) article. |
| P1260 | Theft Detected, Vehicle Immobilized | PCM | If there are any other PATS DTCs, ADDRESS them first. If DTC P1260 is the only DTC present, there may be a power or ground issue with the PCM. REFER to the INTRODUCTION - GASOLINE ENGINES article. |