DTC B3797
| DTC B3797 |
| Diagnostic Instructions |
| • |
Perform the
Diagnostic System Check - Vehicle
prior to using this diagnostic procedure.
|
|
| • |
Review
Strategy Based Diagnosis
for an overview of the diagnostic approach.
|
|
| • |
Diagnostic Procedure Instructions
has overviews of all diagnostic categories.
|
|
| DTC Descriptor |
DTC B3797 02
All Door Dead Lock Circuit Short to Ground
| Diagnostic Fault Information |
| Circuit | Short to Ground | Open/High Resistance | Short to Voltage | Signal Performance |
|
Door Lock Switch Signal
|
B3150 00
|
B3150 00
|
B3150 00
|
-
|
|
Door Unlock Switch Signal
|
B3140 00
|
B3140 00
|
B3140 00
|
-
|
|
Driver Door Unlock Control
|
B3125 02, B3130 02, B3135 02
|
1, 2
|
1, 2
|
-
|
|
Doors Lock Control
|
B3125 02, B3130 02, B3135 02
|
1, 2, 3
|
1, 2, 3
|
-
|
|
Passenger Doors Unlock Control
|
B3125 02, B3130 02, B3135 02
|
1, 3
|
1, 3
|
-
|
|
Doors Dead Lock Control
|
B3797 02
|
1, 2, 3
|
1, 2, 3
|
-
|
|
Door Lock Switch Ground
|
-
|
1, 2, 3
|
1, 2, 3
|
-
|
|
1. Door Lock Malfunction
2. Driver Door Unlock Malfunction 3. Door Unlock Malfunction |
||||
| Circuit/System Description |
The body control module (BCM) controls the driver door lock relay.
| Conditions for Running the DTC |
Battery voltage must be between 9-16 V.
| Conditions for Setting the DTC |
The BCM detects a short to ground in the doors dead lock circuit.
| Action Taken When the DTC Sets |
| • |
The BCM stores the DTC to memory.
|
|
| • |
The power door locks will be inoperative.
|
|
| Conditions for Clearing the DTC |
| • |
This DTC will change from current to history when the fault is no longer present.
|
|
| • |
A history DTC will clear after 100 consecutive ignition cycles if the condition for the malfunction is no longer present.
|
|
| Reference Information |
Schematic Reference
Door Lock/Indicator Schematics
Connector End View Reference
Component Connector End Views
Description and Operation
Power Door Locks Description and Operation
Electrical Information Reference
| • |
Circuit Testing
|
|
| • |
Connector Repairs
|
|
| • |
Testing for Intermittent Conditions and Poor Connections
|
|
| • |
Wiring Repairs
|
|
Scan Tool Reference
Control Module References for information on diagnostic tools
| Circuit/System Verification |
Ignition ON, command the Door Deadlock to Lock and Unlock with a scan tool. Listen or feel for the operation of the door deadlock actuators locking and unlocking.
| Circuit/System Testing |
| 1. |
Ignition OFF, disconnect the X7 harness connector at the K9 Body Control Module.
|
|
| 2. |
Test for greater than 50 Ω between the control circuit terminal 4 and ground.
|
|
| 3. |
If less than the specified value, test the control circuit for a short to ground. If the circuit tests normal, replace the X50A Fuse Block - Underhood.
|
|
| 4. |
If all circuits test normal, replace the K9 Body Control Module
|
|
| Repair Instructions |
Perform the Diagnostic Repair Verification after completing the diagnostic procedure.
| • |
Underhood Electrical Center or Junction Block Replacement
|
|
| • |
Control Module References
for information on BCM replacement, setup, and programming
|
|
This project is supported by memberships and donations. If you use this site, please consider Joining SCNA and/or making a donation.
Our Friends
