Pinpoint Test E: No Power In Start - Hybrid
WARNING: This page is about a different car, the 2011 Mercury Milan, 2011 Lincoln MKZ, and 2011 Ford Fusion. However, it is still accessible from the selected car via links, so may be relevant.
- E1 CHECK FOR VOLTAGE TO SJB FUSE 28 (5A)
- Disconnect: SJB Fuse 28 (5A).
- With the ignition in the START position, measure the voltage between SJB fuse 28 (5A), circuit CDC35 (BU/WH), input side and ground.
- Is the voltage greater than 10 volts?
- Yes : GO to E4.
- No : GO to E2 .
- E2 CHECK THE IGNITION START CIRCUIT FOR AN OPEN
- Ignition OFF.
- Disconnect: Ignition Switch C250.
- Measure the resistance between SJB fuse 28 (5A), circuit CDC35 (BU/WH), input side and ignition switch C250-7, circuit CDC35 (BU/ WH), harness side.
- Is the resistance less than 5 ohms?
- Yes : GO to E3 .
- No : REPAIR circuit CDC35 (BU/WH). TEST the system for normal operation.
- E3 CHECK THE IGNITION START CIRCUIT FOR A SHORT TO GROUND
- Measure the resistance between ignition switch C250-7, circuit CDC35 (BU/WH), harness side and ground.
- Is the resistance greater than 10,000 ohms?
- Yes : INSTALL a new ignition switch. REFER to IGNITION SWITCH in this service information. TEST the system for normal operation.
- No : REPAIR circuit CDC35 (BU/WH). TEST the system for normal operation.
- E4 CHECK FOR CORRECT SJB OPERATION
- Disconnect: All SJB connectors.
- Check all SJB connectors for:
- corrosion.
- pushed-out pins.
- spread terminals.
- Connect: All SJB connectors making sure that all connectors are seated correctly.
- Operate the system and verify the concern is still present.
- Is the concern still present?
- Yes : INSTALL a new SJB. REFER to MULTIFUNCTION ELECTRONIC MODULES -- FUSION, MILAN & MKZ article. TEST the system for normal operation.
- No : The system is operating correctly at this time. Concern may have been caused by a loose or corroded connector.