Captiva |
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• | 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 provides an overview of each diagnostic category. |
Circuit | Short to Ground | Open/High Resistance | Short to Voltage | Signal Performance |
---|---|---|---|---|
I/P Fuse Block B+ | 1, 2 | 1, 2 | -- | -- |
Door Lock Signal | 3 | 3 | 3 | -- |
Door Unlock Signal | 3 | 3 | 3 | -- |
Door Latch Lock Control | 2 | 2 | 2 | -- |
Door Latch Unlock Control | 1 | 1 | 1 | -- |
Door Lock Relay Control | B3135 | 2 | 2 | -- |
Door Unlock Relay Control | B3130 | B3130 | 1 | -- |
Driver Door Lock Switch Ground | -- | 3 | 3 | -- |
I/P Fuse Block Ground | -- | 1, 2 | -- | -- |
1. Door Unlock Function Inoperative 2. Door Lock Function Inoperative 3. Door Lock Switch Malfunction |
The power door lock actuators are controlled through the door lock and unlock relays in the IP fuse block. While the relays are in the de-energised state, the actuator control circuits are grounded through the relays. When lock or unlock function is activated, the appropriate relay is energised and the control circuit is switched to battery voltage. The door lock relays are wired in parallel to the lock and unlock control circuits. Lock and unlock functions are determined by which control circuit is switched to battery voltage while the other remains grounded.
Door Lock/Indicator Schematics
Power Door Locks Description and Operation
Control Module References for scan tool information
⇒ | If either parameter does not change, refer to Driver Door Lock Switch Malfunction. |
⇒ | If one or more but not all doors are inoperative, refer to Single Door Latch Inoperative. |
⇒ | If all doors latches are inoperative, refer to All Doors Lock and Unlock Inoperative. |
⇒ | If all doors UNLOCK but do not LOCK, refer to All Doors Unlock But Do Not Lock. |
⇒ | If all doors LOCK but do not UNLOCK, refer to All Doors Lock But Do Not Unlock. |
⇒ | If greater than the specified range, test the ground circuit for an open/high resistance. |
⇒ | If less than the specified range, test the signal circuit for a short of ground or an open/high resistance. If the circuit tests normal, replace the K9 BCM |
⇒ | If less than the specified range, test the signal circuit for a short of ground or an open/high resistance. If the circuit tests normal, replace the K9 BCM |
• | M14D door lock actuator - driver control terminal 2 and control terminal 3 (Left Hand Drive) |
• | M14D door lock actuator - driver control terminal 8 and control terminal 7 (Right Hand Drive) |
• | M14P door lock actuator - passenger control terminal 8 and control terminal 7 (Left Hand Drive) |
• | M14P door lock actuator - passenger control terminal 2 and control terminal 3 (Right Hand Drive) |
• | M14LR door lock actuator - left rear terminal 2 and terminal 3 |
• | M14RR door lock actuator - right rear terminal 7 and terminal 8 |
⇒ | If the test lamp is always OFF for either the LOCK or UNLOCK command, test the control circuit for an open/high resistance between the connector and the circuit splice. |
⇒ | If greater than the specified range, test the ground circuit for an open/high resistance. |
⇒ | If the test lamp does not illuminate and the B+ circuit fuse is good, test the B+ circuit for an open/high resistance. |
⇒ | If the test lamp does not illuminate and the B+ circuit fuse is open, test the B+ circuit and the door latch control circuits for a short to ground. |
⇒ | If the test lamp illuminates, test the control circuit for a short to B+. If the circuit tests normal, replace the K9 BCM. |
⇒ | If the test lamp is always OFF, test the control circuit for a short to ground or an open/high resistance. If the circuit tests normal, replace the K9 BCM. |
⇒ | If the test lamp does not illuminate, test the B+ circuit for a short to ground or an open/high resistance. If the circuit tests normal and the B+ circuit fuse is open, test the control circuit terminal 30 for a short to ground. If the circuit tests normal, test or replace the KR90 door unlock relay. |
⇒ | If the test lamp is always ON, test the control circuit for a short to ground. If the circuit tests normal, replace the K9 BCM. |
⇒ | If the test lamp is always OFF, test the control circuit for a short to voltage or an open/high resistance. If the circuit tests normal, replace the K9 BCM. |
⇒ | If not the specified value, replace the S13D door lock switch-driver. |
⇒ | If not the specified value, replace the S13D door lock switch-driver. |
⇒ | If greater than the specified range, replace the S13D door lock switch-driver. |
⇒ | If greater than the specified range, replace the S13D door lock switch-driver. |
⇒ | If it does not perform as specified, replace the M14 door lock actuator. |
⇒ | If not within the specified range, replace the relay. |
• | 30 and 86 |
• | 30 and 87 |
• | 30 and 85 |
• | 85 and 87 |
⇒ | If less than the specified value, replace the relay. |
⇒ | If greater than the specified range, replace the relay. |
⇒ | If greater than specified range, replace the relay. |
Perform the Diagnostic Repair Verification after completing the repair.
• | Relay Replacement : Within an Electrical Center → Attached to Wire Harness |
• | Body Control Module Replacement for BCM replacement, programming and setup |
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