Remis Posted September 4, 2023 Report Share Posted September 4, 2023 Hello, i have problem with liftgate. It wont open. Then i push button, liftgate open 10cm and close. But if i help little with hand, it open full. With forscan i sow dtc b12ee, but i dont find info about this problem Quote Link to comment Share on other sites More sharing options...
CARR142 Posted September 4, 2023 Report Share Posted September 4, 2023 Google: dtc b12ee Quote Link to comment Share on other sites More sharing options...
Haz Posted September 6, 2023 Report Share Posted September 6, 2023 (edited) Welcome to the Forum, Remis ! Diagnostic information from the 2015 Edge Workshop Manual... The Manual Liftgate Latch Release Is Inoperative Normal Operations and Fault Conditions Liftgate Latch Release (manual liftgate) The liftgate latch can be released using: the exterior liftgate release switch. a valid programmed passive key. The BCM sends a voltage signal to the exterior liftgate release switch. When the liftgate release switch is pressed, the voltage signal is routed to ground, indicating a request to release the liftgate latch. The BCM momentarily provides voltage to the liftgate latch to actuate the release motor. When using the liftgate release switch, the BCM releases the liftgate only when the doors have been electronically unlocked and the vehicle is in PARK. When using a programmed RKE transmitter, press the liftgate release button twice within 3 seconds to release the liftgate latch. The liftgate latch releases if the vehicle speed is 5 km/h (3.1 mph) or less. The liftgate latch can also be released using the passive entry feature. Refer to Liftgate Passive Entry in this section. Passive Entry (if equipped) NOTE: To perform an accurate diagnosis of a concern, make sure the vehicle has a fully charged 12V battery and is in good condition when performing any electrical pinpoint tests. When the vehicle’s 12-volt battery is below a set threshold, certain features can be limited or become inoperative and lead to misdiagnosis. NOTE: Some models are not equipped with the passive entry feature, but are equipped with push button start. The passive entry feature unlocks or locks the doors or opens the liftgate without having to use a mechanical key blade or the RKE transmitter feature. When the BCM detects a lock or unlock sensor is touched on an exterior door handle, or the exterior liftgate release button is pressed, it activates the low frequency antenna in the corresponding exterior door handle or inside the luggage compartment area. The low frequency antenna sends out a signal to activate the passive key. The passive key then responds by sending a high frequency signal back to the RTM . The RTM interprets the high frequency signal from the passive key and sends the information to the BCM . If the BCM detects a valid programmed passive key, the BCM unlocks the driver door, unlocks or locks all 4 doors, releases the liftgate latch (manual liftgate) or sends a command to the RGTM to power open the liftgate (power liftgate). The passive entry (Intelligent Access) feature is part of vehicle load shed strategy. BCM DTC Fault Trigger Conditions DTC Description Fault Trigger Conditions B1219:11 Interior Boot/Trunk Release Switch: Circuit Short To Ground Sets when the BCM detects a short to ground from the exterior liftgate release switch input circuit. B12EE:11 Liftgate/Tailgate/Trunk Release: Circuit Short To Ground Sets when the BCM detects a short to ground from the liftgate latch release output circuit. B12EE:15 Liftgate/Tailgate/Trunk Release: Circuit Short To Battery or Open Sets when the BCM detects an open from the liftgate latch release output circuit. If the liftgate latch release is inoperative, GO to Pinpoint Test N If the liftgate does not latch, DISCONNECT the liftgate latch electrical connector and CHECK the operation of the latch using a screwdriver. If the latch does not fully latch (2 clicks), INSTALL a new liftgate latch. If the latch fully latches (2 clicks), REFER to the Wiring Diagrams manual to identify the possible cause of the circuit short in the liftgate latch release circuit. Possible Causes Wiring, terminals or connectors Liftgate release switch Liftgate latch BCM Visual Inspection and Diagnostic Pre-checks Inspect the liftgate release switch for damage. PINPOINT TEST N: THE MANUAL LIFTGATE LATCH RELEASE IS INOPERATIVE NOTE: This pinpoint test does not diagnose liftgate release concerns for vehicles with the power liftgate feature. Refer to Section 501-03 for power liftgate diagnostics. N1 CHECK THE LIFTGATE RELEASE INPUT FOR A SHORT TO GROUND USING THE BCM (BODY CONTROL MODULE) LIFTGATE RELEASE SWITCH STATUS (LFTGATE_R_SW) PID (PARAMETER IDENTIFICATION) Ignition ON. Using a diagnostic scan tool, view the BCM Parameter Identifications (PIDs). Using a diagnostic scan tool, view the BCM PID LFTGATE_R_SW. Does the PID indicate the liftgate release switch is continuously pressed? Yes GO to N2 No GO to N4 N2 CHECK THE LIFTGATE RELEASE SWITCH USING THE BCM (BODY CONTROL MODULE) LIFTGATE RELEASE SWITCH STATUS (LFTGATE_R_SW) PID (PARAMETER IDENTIFICATION) Ignition OFF. Disconnect Liftgate Release Switch C4216. Ignition ON. Using a diagnostic scan tool, view the BCM PID LFTGATE_R_SW. Does the PID continue to indicate the switch is pressed? Yes GO to N3 No INSTALL a new liftgate release switch. REFER to: Liftgate Release Switch (501-14 Handles, Locks, Latches and Entry Systems, Removal and Installation). N3 CHECK THE LIFTGATE RELEASE SWITCH INPUT CIRCUIT FOR A SHORT TO GROUND Ignition OFF. Disconnect BCM C2280D. Measure: Positive Lead Measurement / Action Negative Lead C4216 Pin 1 Ground Is the resistance greater than 10,000 ohms? Yes GO to N12 No REPAIR the circuit. N4 CHECK THE BCM (BODY CONTROL MODULE) LIFTGATE RELEASE SWITCH STATUS (LFTGATE_R_SW) PID (PARAMETER IDENTIFICATION) Using a diagnostic scan tool, view the BCM LFTGATE_R_SW PID while pressing the liftgate release switch. Does the PID indicate the switch is pressed? Yes GO to N8 No GO to N5 N5 BYPASS THE LIFTGATE RELEASE SWITCH WHILE MONITORING THE BCM (BODY CONTROL MODULE) LIFTGATE RELEASE SWITCH STATUS (LFTGATE_R_SW) PID (PARAMETER IDENTIFICATION) Ignition OFF. Disconnect Liftgate Release Switch. Ignition ON. Connect: Lead 1 Measurement / Action Lead 2 C4216 Pin 1 C4216 Pin 2 Using a diagnostic scan tool, view the BCM LFTGATE_R_SW PID . Does the PID indicate the switch is pressed? Yes REMOVE the fused jumper wire. INSTALL a new liftgate release switch. REFER to: Liftgate Release Switch (501-14 Handles, Locks, Latches and Entry Systems, Removal and Installation). No REMOVE the fused jumper wire. GO to N6 N6 CHECK THE LIFTGATE RELEASE SWITCH GROUND CIRCUIT FOR AN OPEN WHILE MONITORING THE BCM (BODY CONTROL MODULE) LIFTGATE RELEASE SWITCH STATUS (LFTGATE_R_SW) PID (PARAMETER IDENTIFICATION) Connect: Lead 1 Measurement / Action Lead 2 C4216 Pin 1 Ground Using a diagnostic scan tool, view the BCM LFTGATE_R_SW PID . Does the PID indicate the switch is pressed? Yes REMOVE the fused jumper wire. REPAIR the circuit. No REMOVE the fused jumper wire. GO to N7 N7 CHECK THE LIFTGATE RELEASE SWITCH INPUT CIRCUIT FOR AN OPEN Ignition OFF. Disconnect BCM C2280D. Measure: Positive Lead Measurement / Action Negative Lead C4216 Pin 1 C2280D Pin 1 Is the resistance less than 3 ohms? Yes GO to N12 No REPAIR the circuit. N8 CHECK FOR VOLTAGE TO THE LIFTGATE LATCH RELEASE MOTOR NOTICE: The following step uses a test lamp to simulate normal circuit loads. Use only a Rotunda Test Lamp (SGT27000) or 250-300mA incandescent bulb test lamp. To avoid connector terminal damage, use the Rotunda Flex Probe kit for the test lamp probe connection to the vehicle. Do not use the test lamp probe directly on any connector. Ignition OFF. Disconnect Liftgate Latch C479. Ignition ON. Using a diagnostic scan tool, carry out the BCM self-test. Connect: Positive Lead Measurement / Action Negative Lead C479 Pin 2 Ground Unlock the doors using a door lock control switch. NOTE: The BCM only supplies voltage to the actuator momentarily. It is important to monitor the test lamp while pressing the liftgate release switch. While pressing the liftgate release switch, monitor the test lamp. Does the test lamp momentarily illuminate? Yes GO to N9 No GO to N10 N9 CHECK THE LIFTGATE LATCH RELEASE MOTOR GROUND CIRCUIT FOR AN OPEN NOTICE: The following step uses a test lamp to simulate normal circuit loads. Use only a Rotunda Test Lamp (SGT27000) or 250-300mA incandescent bulb test lamp. To avoid connector terminal damage, use the Rotunda Flex Probe kit for the test lamp probe connection to the vehicle. Do not use the test lamp probe directly on any connector. Connect: Positive Lead Measurement / Action Negative Lead C479 Pin 2 C479 Pin 5 NOTE: The BCM only supplies voltage to the actuator momentarily. It is important to monitor the test lamp while pressing the liftgate release switch. While pressing the liftgate release switch, monitor the test lamp. Does the test lamp momentarily illuminate? Yes INSTALL a new liftgate latch. REFER to: Liftgate Latch (501-14 Handles, Locks, Latches and Entry Systems, Removal and Installation). No REPAIR the circuit. N10 CHECK THE LIFTGATE LATCH RELEASE MOTOR VOLTAGE SUPPLY CIRCUIT FOR A SHORT TO GROUND Ignition OFF. Disconnect BCM C2280F. Measure: Positive Lead Measurement / Action Negative Lead C479 Pin 2 Ground Is the resistance greater than 10,000 ohms? Yes GO to N11 No REPAIR the circuit. N11 CHECK THE LIFTGATE LATCH RELEASE MOTOR VOLTAGE SUPPLY CIRCUIT FOR AN OPEN Measure: Positive Lead Measurement / Action Negative Lead C479 Pin 2 C2280F Pin 31 Is the resistance less than 3 ohms? Yes GO to N12 No REPAIR the circuit. N12 CHECK FOR CORRECT BCM (BODY CONTROL MODULE) OPERATION Disconnect and inspect all the BCM connectors. Repair: corrosion (install new connectors or terminals - clean module pins) damaged or bent pins - install new terminals pins pushed-out pins - install new pins as necessary Reconnect the BCM connectors and make sure they seat and latch correctly. Operate the system and determine if the concern is still present. Is the concern still present? Yes CHECK OASIS for any applicable Technical Service Bulletins (TSBs). If a TSB exists for this concern, DISCONTINUE this test and FOLLOW TSB instructions. If no Technical Service Bulletins (TSBs) address this concern, VIN required to access Guided Routine (BCM) No The system is operating correctly at this time. The concern may have been caused by module connections. ADDRESS the root cause of any connector or pin issues. Document download links> Liftgate Latch Manual Release - General Procedures - 2015 Edge Workshop Manual.pdf Liftgate Latch - Removal and Installation - 2015 Edge Workshop Manual.pdf LIFTGATE-LUGGAGE COMPARTMENT LID LATCH - Connector C479 Details - 2015 Edge.pdf LIFTGATE-LUGGAGE COMPARTMENT LID LATCH - Connector C479 Location - 2015 Edge.pdf Liftgate Release Switch - Removal and Installation - 2015 Edge Workshop Manual.pdf LIFTGATE RELEASE SWITCH - Connector C4216 Details - 2015 Edge.pdf LIFTGATE RELEASE SWITCH - Connector C4216 Location - 2015 Edge.pdf Liftgate Trim Panel - Removal and Installation - 2015 Edge Workshop Manual.pdf Body Control Module (BCM) - Connectors C2280D & C2280F Attachment Locations on BCM - 2015 Edge.pdf BODY CONTROL MODULE (BCM) - Connector C2280D Details - 2015 Edge.pdf BODY CONTROL MODULE (BCM) - Connector C2280D Location - 2015 Edge.pdf BODY CONTROL MODULE (BCM) - Connector C2280F Details - 2015 Edge.pdf BODY CONTROL MODULE (BCM) - Connector C2280F Location - 2015 Edge.pdf Beyond this Pinpoint Test N diagnostic procedure, I find no Technical Service Bulletin (TSB) addressing the liftgate latching issue you describe. Good luck! Edited September 6, 2023 by Haz 2 Quote Link to comment Share on other sites More sharing options...
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