Scheme 16
Scheme 17
| Callout | Component Name |
|---|---|
| 1 | Remote Control Door Lock Receiver (RCDLR) |
| 2 | Remote Control Door Lock Receiver (RCDLR) Connector |
| 3 | Body Control Module (BCM) |
| 4 | Automatic Transmission Shift Lock Actuator Connector |
| 5 | Automatic Transmission Shift Lock Actuator |
| 6 | Park Brake Switch |
| 7 | Park Brake Switch Connector |
Test Description
The numbers below refer to the step numbers on the diagnostic table.
- 2: Lack of communication may be due to a partial malfunction of the class 2 serial data circuit or due to a total malfunction of the class 2 serial data circuit. The specified procedure will determine the particular condition.
- 5: The presence of DTCs which begin with "U" indicate some other module is not communicating. The specified procedure will compile all the available information before tests are performed.
| Step | Action | Yes | No |
|---|---|---|---|
| 1 | Install a scan tool. Does the scan tool power up? | Go to Step 2 | Go to Scan Tool Does Not Power Up in Data Link Communications |
| 2 | Turn ON the ignition, with the engine OFF. Attempt to establish communication with the body control module (BCM). Does the scan tool communicate with the BCM? | Go to Step 3 | Go to Scan Tool Does Not Communicate with Class 2 Device in Data Link Communications |
| 3 | IMPORTANT: The engine may start during the following step. Turn OFF the engine as soon as you have observed the Crank power mode. Access the Class 2 Power Mode in the Diagnostic Circuit Check on the scan tool. Rotate the ignition switch through all positions while observing the ignition switch power mode parameter. Does the ignition switch parameter reading match the ignition switch position for all switch positions? | Go to Step 4 | Go to Power Mode Mismatch in Body Control System |
| 4 | Select the BCM display DTCs function on the scan tool. Does the scan tool display any DTCs? | Go to Step 5 | Go to Symptoms - Keyless Entry |
| 5 | Does the scan tool display any DTCs which begin with a "U"? | Go to Scan Tool Does Not Communicate with Class 2 Device in Data Link Communications | Go to Step 6 |
| 6 | Does the scan tool display DTC B1000 or B1004? | Go to Diagnostic Trouble Code (DTC) List in Body Control System | Go to Step 7 |
| 7 | Does the scan tool display DTC B1339 or B1349? | Go to Diagnostic Trouble Code (DTC) List in Body Control System | Go to Step 8 |
| 8 | Does the scan tool display DTC B1482, B1483, B1507 or B1508? | Go to Diagnostic Trouble Code (DTC) List in Engine Electrical | Go to Diagnostic Trouble Code (DTC) List |
| IMPORTANT |
|---|
| The engine may start during the following step. Turn OFF the engine as soon as you have observed the Crank power mode. |
Diagnostic System Check - Remote Keyless Entry
The number below refers to the step number on the diagnostic table.
- 3: This step checks the keyless entry serial data circuit for voltage supplied by the BCM.
| Step | Action | Value(s) | Yes | No |
|---|---|---|---|---|
| Schematic Reference: Keyless Entry Schematics | ||||
| 1 | Did you perform the Diagnostic System Check? | Go to Step 2 | Go to Diagnostic System Check - Remote Keyless Entry | |
| 2 | Install a scan tool. Turn ON the ignition, with the engine OFF. With a scan tool, observe the status of DTC B3102. Is the DTC B3102 a current code? | Go to Step 3 | Go to Testing for Intermittent Conditions and Poor Connections in Wiring Systems | |
| 3 | Turn OFF the ignition. Disconnect the remote control door lock receiver (RCDLR). Connect a DMM from the keyless entry serial data circuit to a good ground. Turn ON the ignition, with the engine OFF. Observe the voltage. Does the DMM indicate the specified value? | B+ | Go to Step 5 | Go to Step 4 |
| 4 | Test the keyless entry serial data circuit for a short to ground. Refer to Circuit Testing and Wiring Repairs in Wiring Systems. Did you find and correct the condition? | Go to Step 9 | Go to Step 6 | |
| 5 | Inspect for poor connections at the harness connector of the RCDLR. Refer to Testing for Intermittent Conditions and Poor Connections and Connector Repairs in Wiring Systems. Did you find and correct the condition? | Go to Step 9 | Go to Step 7 | |
| 6 | Inspect for poor connections at the harness connector of the body control module (BCM). Refer to Testing for Intermittent Conditions and Poor Connections and Connector Repairs in Wiring Systems. Did you find and correct the condition? | Go to Step 9 | Go to Step 8 | |
| 7 | IMPORTANT: Perform the keyless entry transmitter programming procedure when replacing the RCDLR. Replace the RCDLR.Did you complete the replacement? | Go to Step 9 | ||
| 8 | IMPORTANT: Perform the BCM programming procedure when replacing the BCM. Replace the BCM. Refer to Body Control Module Replacement in Body Control System. Did you complete the replacement? | Go to Step 9 | ||
| 9 | Use the scan tool in order to clear the DTCs. Operate the vehicle within the Conditions for Running the DTC as specified in the supporting text. Does the DTC reset? | Go to Step 2 | System OK | |
| IMPORTANT |
|---|
| Perform the keyless entry transmitter programming procedure when replacing the RCDLR. |
| IMPORTANT |
|---|
| Perform the BCM programming procedure when replacing the BCM. Replace the BCM. Refer to Body Control Module Replacement in Body Control System. |
DTC B3102
Symptoms - Keyless Entry
| IMPORTANT | The following steps must be completed before using the symptom tables. |
- Perform «Diagnostic System Check - Remote Keyless Entry»(ref-187809-S18702996672005090100000) before using the Symptom Tables in order to verify that all of the following are true: There are no DTCs set. The control module(s) can communicate via the serial data link.
- Review the system operation in order to familiarize yourself with the system functions. Refer to «Keyless Entry System Description and Operation»(ref-187809-S17137880092005090100000) .
The number below refers to the step number on the diagnostic table.
- 15: A DMM must be used in this step. A test lamp may give incorrect results. Testing for B+ supply from the body control module (BCM).
- 16: An illuminated test lamp at step 16 reveals a short to voltage in the serial data circuit.
| Step | Action | Value | Yes | No |
|---|---|---|---|---|
| 1 | Did you perform the Diagnostic System Check? | Go to Step 2 | Go to Diagnostic System Check - Remote Keyless Entry | |
| 2 | Press each button of the transmitter one at a time. Does the system operate normally? | Go to Testing for Intermittent Conditions and Poor Connections in Wiring Systems | Go to Step 3 | |
| 3 | Lock and unlock the door locks using the controls inside the vehicle. Do the locks operate properly? | Go to Step 4 | Go to Diagnostic System Check - Door Systems in Doors | |
| 4 | IMPORTANT: Inspect that the keyless entry transmitter is the correct model for the vehicle remote system. A wrong model transmitter may pass this test, but will not activate the vehicle remote system. Turn on the J 43241 Keyless Entry Tester. See Special Tools and Equipment . Place the transmitter on the J 43241 test pad. See Special Tools and Equipment . Press each button of the transmitter one at a time. Does a tone sound and the green light illuminate on the J 43241 after each button is pressed?. See Special Tools and Equipment . | Go to Step 9 | Go to Step 5 | |
| 5 | Do any of the buttons on the transmitter sound the tone and illuminate the green light when pressed? | Go to Step 8 | Go to Step 6 | |
| 6 | Replace the transmitter battery. Refer to Transmitter Battery Replacement . Did you complete the replacement? | Go to Step 7 | ||
| 7 | Turn on the J 43241 . See Special Tools and Equipment . Place the transmitter on the J 43241 test pad. See Special Tools and Equipment . Press each button of the transmitter one at a time. Does a tone sound and the green light illuminate on the J 43241 after each button is pressed?. See Special Tools and Equipment . | Go to Step 9 | Go to Step 8 | |
| 8 | Replace the transmitter. Did you complete the replacement? | Go to Step 12 | ||
| 9 | Press the PANIC button on the transmitter. Does the PANIC function operate normally? | Go to Step 10 | Go to Step 12 | |
| 10 | Perform the synchronization procedure. Refer to Transmitter Resynchronization . Did the horn chirp to confirm that the synchronization has been completed? | Go to Step 11 | Go to Step 12 | |
| 11 | Operate the transmitter within range of the vehicle. Do all of the keyless entry functions operate normally? | Go to Step 25 | Go to Step 12 | |
| 12 | IMPORTANT: All transmitters which are to be recognized by the remote control door lock receiver (RCDLR) must be programmed in a single programming sequence. If the system is placed in program mode, it will erase all previously programmed transmitters upon the receipt of the programming signal from the first transmitter. Perform the programming procedure. Refer to Transmitter Programming .Did you hear the body control module (BCM) chime to confirm that the transmitter programming has been completed? | Go to Step 25 | Go to Step 13 | |
| 13 | Turn OFF the Ignition. Disconnect the RCDLR. Connect a test lamp between the battery positive voltage circuit of the RCDLR and a good ground. Does the test lamp illuminate? | Go to Step 14 | Go to Step 20 | |
| 14 | Connect a test lamp between the battery positive voltage circuit of the RCDLR and the RCDLR ground circuit. Does the test lamp illuminate? | Go to Step 15 | Go to Step 21 | |
| 15 | Disconnect the test lamp. Turn ON the ignition, with the engine OFF. With a DMM, measure the voltage between the keyless entry serial data circuit and the RCDLR ground circuit. Does the DMM indicate the specified value? | B+ | Go to Step 16 | Go to Step 17 |
| 16 | Turn ON the ignition, with the engine OFF. Connect a test lamp between the keyless entry serial data circuit and the RCDLR ground circuit. Does the test lamp illuminate? | Go to Step 22 | Go to Step 18 | |
| 17 | Test the keyless entry serial data circuit for an open, high resistance, or short to ground. Refer to Circuit Testing and Testing for Intermittent Conditions and Poor Connections in Wiring Systems. Did you find and correct the condition? | Go to Step 25 | Go to Step 19 | |
| 18 | Inspect for poor connections at the harness connector of the RCDLR. Refer to Testing for Intermittent Conditions and Poor Connections and Connector Repairs in Wiring Systems. Did you find and correct the condition? | Go to Step 25 | Go to Step 23 | |
| 19 | Inspect for poor connections at the harness connector of the BCM. Refer to Testing for Intermittent Conditions and Poor Connections and Connector Repairs in Wiring Systems. Did you find and correct the condition? | Go to Step 25 | Go to Step 24 | |
| 20 | Repair the open, high resistance, or short to ground in the battery positive voltage circuit of the RCDLR. Refer to Circuit Testing and Wiring Repairs in Wiring Systems. Did you complete the repair? | Go to Step 25 | ||
| 21 | Repair the open or high resistance in the RCDLR ground circuit. Refer to Circuit Testing and Wiring Repairs in Wiring Systems. Did you complete the repair? | Go to Step 25 | ||
| 22 | Repair the short to voltage in the keyless entry serial data circuit. Refer to Circuit Testing and Wiring Repairs in Wiring Systems. Did you complete the repair? | Go to Step 25 | ||
| 23 | IMPORTANT: Perform the keyless entry transmitter programming procedure when replacing the RCDLR. Replace the RCDLR.Did you complete the replacement? | Go to Step 25 | ||
| 24 | IMPORTANT: Perform the BCM programming procedure when replacing the BCM. Replace the BCM. Refer to Body Control Module Replacement in Body Control System.Did you complete the replacement? | Go to Step 25 | ||
| 25 | Operate the system in order to verify the repair. Did you correct the condition? | System OK | Go to Step 3 |
| IMPORTANT |
|---|
| Inspect that the keyless entry transmitter is the correct model for the vehicle remote system. A wrong model transmitter may pass this test, but will not activate the vehicle remote system. |
| IMPORTANT |
|---|
| All transmitters which are to be recognized by the remote control door lock receiver (RCDLR) must be programmed in a single programming sequence. If the system is placed in program mode, it will erase all previously programmed transmitters upon the receipt of the programming signal from the first transmitter. |
| IMPORTANT |
|---|
| Perform the keyless entry transmitter programming procedure when replacing the RCDLR. |
| IMPORTANT |
|---|
| Perform the BCM programming procedure when replacing the BCM. |
Keyless Entry System Inoperative
Unlock All Doors-Second Operation
Momentarily press the UNLOCK button a second time within 2 seconds of the first press in order to perform the following functions
- Unlock the remaining doors.
- Illuminate the interior lamps for a predetermined amount of time or until the ignition is turned ON.
- Flash the park lamps.