Pinpoint Test H: The Rear Video Is Inoperative
Parking Aid - Video
Pinpoint Tests
Pinpoint Test H: The Rear Video Is Inoperative
Refer to Wiring Diagram Set 131 (Escape/Mariner, Escape Hybrid/Mariner Hybrid) for schematic and connector information. Diagrams By Number
Normal Operation
With the ignition switch in the RUN position, the video camera receives voltage. For vehicles without navigation, with the gear selector in REVERSE (R) position, a reverse voltage signal is sent to the auto-dimming interior mirror. For vehicles with navigation, with the gear selector in REVERSE (R) position, a reverse signal is sent from the Instrument Cluster (IC) to the Audio Control Module (ACM) over the Medium Speed Controller Area Network (MS-CAN), enabling the system. The video signal from the video camera displays an image on the left portion of the auto-dimming interior mirror (for vehicles without navigation) or displays an image on the ACM (for vehicles with navigation).
- DTC C1001:01 (Vision System Camera: General Electrical Failure) - a continuous DTC that sets in the ACM when no video signal is detected for more than 3 seconds when the vehicle is in REVERSE (R).
This pinpoint test is intended to diagnose the following:
- Wiring, terminals or connectors
- Video camera
- Auto-dimming interior mirror (without navigation)
- ACM (for vehicles with navigation)
PINPOINT TEST H: THE REAR VIDEO IS INOPERATIVE
NOTICE: Use the correct probe adapter(s) when making measurements. Failure to use the correct probe adapter(s) may damage the connector.
NOTE: Failure to disconnect the battery when instructed will result in false resistance readings. Refer to Battery, Mounting and Cables Battery Disconnect.
-------------------------------------------------
H1 VERIFY VEHICLE EQUIPMENT - NAVIGATION
- Check the vehicle for navigation.
- Is the vehicle equipped with navigation?
Yes
GO to H7.
No
GO to H2.
-------------------------------------------------
H2 CHECK THE REVERSING LAMPS OPERATION
- Ignition OFF.
- Apply the parking brake.
- Ignition ON.
- Select REVERSE.
- Check the operation of the reversing lamps.
- Do the reversing lamps operate correctly?
Yes
GO to H3.
No
REFER to Exterior Lighting Testing and Inspection.
-------------------------------------------------
H3 CHECK FOR VIDEO CAMERA SIGNAL
- Observe the auto-dimming interior mirror.
- Select PARK.
- Select REVERSE.
- Does the auto-dimming interior mirror momentarily display a blue screen, then turns black?
Yes
The auto-dimming interior mirror is functional. There is no signal from the video camera. GO to H9.
No
GO to H4.
-------------------------------------------------
H4 CHECK THE AUTO-DIMMING INTERIOR MIRROR VOLTAGE SUPPLY CIRCUIT FOR AN OPEN
- Ignition OFF.
- Disconnect: Auto-Dimming Interior Mirror C9039.
- Ignition ON.
- Measure the voltage between the auto-dimming interior mirror C9039-1, circuit CBP41 (BU), harness side and ground.
- Is the voltage greater than 10 volts?
Yes
GO to H5.
No
REPAIR the circuit. TEST the system for normal operation.
-------------------------------------------------
H5 CHECK THE AUTO-DIMMING INTERIOR MIRROR REVERSE INPUT CIRCUIT
- Select REVERSE.
- Measure the voltage between the auto-dimming interior mirror C9039-2, circuit CBB07 (GN/BU), harness side and ground.
- Is the voltage greater than 10 volts?
Yes
GO to H6.
No
REPAIR the circuit. TEST the system for normal operation.
-------------------------------------------------
H6 CHECK THE AUTO-DIMMING INTERIOR MIRROR GROUND CIRCUIT FOR AN OPEN
- Ignition OFF.
- Disconnect: Negative Battery Cable.
- Measure the resistance between the auto-dimming interior mirror C9039-3, circuit GD182 (BK/GY), harness side and ground.
- Is the resistance less than 5 ohms?
Yes
INSTALL a new auto-dimming interior mirror. REFER to Rear View Mirrors Interior Rear View Mirror. CONNECT the negative battery cable. TEST the system for normal operation.
No
REPAIR the circuit. CONNECT the negative battery cable. TEST the system for normal operation.
-------------------------------------------------
H7 CHECK FOR ACM DTCs
- Review the recorded DTCs from the ACM self-test.
- Is DTC C1001:01 or DTC U0155:00 present?
Yes
For DTC C1001:01, GO to H9.
For DTC U0155:00, REFER to Information and Entertainment Systems Testing and Inspection.
No
GO to H8.
-------------------------------------------------
H8 CHECK THE ACM DISPLAY
- Select REVERSE.
- Observe the ACM display.
- Does the ACM display "PLEASE CHECK SURROUNDINGS FOR SAFETY" at the top for the screen?
Yes
GO to H9.
No
INSTALL a new ACM. REFER to Information and Entertainment Systems Audio Control Module (ACM). TEST the system for normal operation.
-------------------------------------------------
H9 CHECK THE VIDEO CAMERA VOLTAGE SUPPLY CIRCUIT FOR AN OPEN
- Ignition OFF.
- Disconnect: Video Camera C4234.
- Ignition ON.
- Measure the voltage between the video camera C4234-1, circuit (WH), harness side and ground.
- Is the voltage greater than 10 volts?
Yes
GO to H10.
No
REPAIR the circuit. TEST the system for normal operation.
-------------------------------------------------
H10 CHECK THE VIDEO CAMERA GROUND CIRCUIT FOR AN OPEN
- Ignition OFF.
- Disconnect: Negative Battery Cable.
- Measure the resistance between the video camera C4234-6, circuit (BN/RD), harness side and ground.
- Is the resistance less than 5 ohms?
Yes
GO to H11.
No
REPAIR the circuit. CONNECT the negative battery cable. TEST the system for normal operation.
-------------------------------------------------
H11 CHECK THE VIDEO CAMERA VIDEO SIGNAL CIRCUITS FOR A SHORT TO GROUND WITH THE AUTO-DIMMING INTERIOR MIRROR (WITHOUT NAVIGATION) OR ACM (WITH NAVIGATION) DISCONNECTED
- Disconnect: Auto-Dimming Interior Mirror (Without Navigation) C9039 Or ACM (With Navigation) C240d.
- Measure the resistance between the video camera C4234-4, circuit (RD), harness side and ground and video camera C4234-5, circuit (BK), harness side and ground.
- Are the resistances greater than 10,000 ohms?
Yes
GO to H12.
No
REPAIR the circuit in question. TEST the system for normal operation.
-------------------------------------------------
H12 CHECK THE VIDEO CAMERA VIDEO SIGNAL CIRCUITS FOR A SHORT TO VIDEO SHIELD
- Measure the resistance between the video camera C4234-4, circuit (RD), harness side and video camera C4234-2, circuit (NONE), harness side.
- Measure the resistance between the video camera C4234-5, circuit (BK), harness side and video camera C4234-2, circuit (NONE), harness side.
- Are the resistances greater than 10,000 ohms?
Yes
GO to H13.
No
REPAIR the circuit in question. CONNECT the negative battery cable. TEST the system for normal operation.
-------------------------------------------------
H13 CHECK THE VIDEO CAMERA VIDEO SIGNAL CIRCUITS FOR A SHORT TO VOLTAGE
- Connect: Negative Battery Cable.
- Ignition ON.
- Measure the voltage between the video camera C4234-4, circuit (RD), harness side and ground.
- Measure the voltage between the video camera C4234-5, circuit (BK), harness side and ground.
- Is any voltage present on either circuit?
Yes
REPAIR the circuit in question. TEST the system for normal operation.
No
GO to H14.
-------------------------------------------------
H14 CHECK VIDEO SIGNAL CIRCUITS FOR AN OPEN
- Ignition OFF.
- Disconnect: Auto-Dimming Interior Mirror (Without Navigation) C9039.
- Disconnect: ACM (With Navigation) C240d.
- Connect a fused jumper wire between the video camera C4234-4, circuit (RD), harness side and the video camera C4234-5, circuit (BK), harness side.
- For vehicles without navigation, measure the resistance between the auto-dimming interior mirror C9039-8, circuit VMP19 (WH/GN), harness side and the auto-dimming interior mirror C9039-16, circuit RMP19 (BN/VT), harness side.
- For vehicles with navigation, measure the resistance between the ACM C240c-6, circuit RMP19 (BN/VT), harness side and the ACM C240c-1, circuit VMP19 (WH/GN), harness side.
- Are the resistances less than 5 ohms?
Yes
REMOVE the jumper wire. CARRY OUT the video camera component test. If the camera is inoperative, INSTALL a new video camera. REFER to Video Camera Service and Repair. TEST the system for normal operation. Parking Aid - Video
No
REMOVE the jumper wire. GO to H15.
-------------------------------------------------
H15 CHECK VIDEO SIGNAL CIRCUIT (+) FOR AN OPEN
- For vehicles without navigation, measure the resistance between the auto-dimming interior mirror C9039-8, circuit VMP19 (WH/GN), harness side and the video camera C4234-4, circuit (RD), harness side.
- For vehicles with navigation, measure the resistance between the ACM C240d-1, circuit VMP19 (WH/GN), harness side and the video camera C4234-4, circuit (RD), harness side.
- Are the resistances less than 5 ohms?
Yes
REPAIR circuit RMP19 (BN/VT) or (BK). TEST the system for normal operation.
No
REPAIR circuit VMP19 (WH/GN) or (RD). TEST the system for normal operation.
-------------------------------------------------