Monitor Conditions
- When Monitored: Continuously.
Set Conditions
- Set Condition: Scrambled messages to the Wireless Control Module (WCM) from the transmitter.
Possible Causes
| Possible Causes |
| EXCESSIVE PRESSES FROM TRANSMITTER WHEN OUT OF RANGE |
| RKE TRANSMITTER |
Note. The most probable cause that sets this code is the Remote Keyless Entry (RKE) transmitter being pressed over 150 times when it is out of range of the WCM and it loses synchronization with the rolling code of the WCM. To correct, insert the key in the ignition and turn to the ON position to synchronize the rolling code.
- When Monitored: Continuously.
- Set Condition: Scrambled messages to the Wireless Control Module (WCM) from the transmitter.
| Possible Causes |
| EXCESSIVE PRESSES FROM TRANSMITTER WHEN OUT OF RANGE |
| RKE TRANSMITTER |
Note. The most probable cause that sets this code is the Remote Keyless Entry (RKE) transmitter being pressed over 150 times when it is out of range of the WCM and it loses synchronization with the rolling code of the WCM. To correct, insert the key in the ignition and turn to the ON position to synchronize the rolling code.
- When Monitored: Continuously.
- Set Condition: Scrambled messages to the Wireless Control Module (WCM) from the transmitter.
| Possible Causes |
| EXCESSIVE PRESSES FROM TRANSMITTER WHEN OUT OF RANGE |
| RKE TRANSMITTER |
Note. The most probable cause that sets this code is the Remote Keyless Entry (RKE) transmitter being pressed over 150 times when it is out of range of the WCM and it loses synchronization with the rolling code of the WCM. To correct, insert the key in the ignition and turn to the ON position to synchronize the rolling code.
- When Monitored: Continuously.
- Set Condition: Scrambled messages to the Wireless Control Module (WCM) from the transmitter.
| Possible Causes |
| EXCESSIVE PRESSES FROM TRANSMITTER WHEN OUT OF RANGE |
| RKE TRANSMITTER |
Note. The most probable cause that sets this code is the Remote Keyless Entry (RKE) transmitter being pressed over 150 times when it is out of range of the WCM and it loses synchronization with the rolling code of the WCM. To correct, insert the key in the ignition and turn to the ON position to synchronize the rolling code.
- When Monitored: Continuously.
- Set Condition: Scrambled messages to the Wireless Control Module (WCM) from the transmitter.
| Possible Causes |
| EXCESSIVE PRESSES FROM TRANSMITTER WHEN OUT OF RANGE |
| RKE TRANSMITTER |
Note. The most probable cause that sets this code is the Remote Keyless Entry (RKE) transmitter being pressed over 150 times when it is out of range of the WCM and it loses synchronization with the rolling code of the WCM. To correct, insert the key in the ignition and turn to the ON position to synchronize the rolling code.
- When Monitored: Continuously.
- Set Condition: Scrambled messages to the Wireless Control Module (WCM) from the transmitter.
| Possible Causes |
| EXCESSIVE PRESSES FROM TRANSMITTER WHEN OUT OF RANGE |
| RKE TRANSMITTER |
Note. The most probable cause that sets this code is the Remote Keyless Entry (RKE) transmitter being pressed over 150 times when it is out of range of the WCM and it loses synchronization with the rolling code of the WCM. To correct, insert the key in the ignition and turn to the ON position to synchronize the rolling code.
- When Monitored: Continuously.
- Set Condition: Scrambled messages to the Wireless Control Module (WCM) from the transmitter.
| Possible Causes |
| EXCESSIVE PRESSES FROM TRANSMITTER WHEN OUT OF RANGE |
| RKE TRANSMITTER |
Note. The most probable cause that sets this code is the Remote Keyless Entry (RKE) transmitter being pressed over 150 times when it is out of range of the WCM and it loses synchronization with the rolling code of the WCM. To correct, insert the key in the ignition and turn to the ON position to synchronize the rolling code.
- When Monitored: Continuously.
- Set Condition: Scrambled messages to the Wireless Control Module (WCM) from the transmitter.
| Possible Causes |
| EXCESSIVE PRESSES FROM TRANSMITTER WHEN OUT OF RANGE |
| RKE TRANSMITTER |
Note. The most probable cause that sets this code is the Remote Keyless Entry (RKE) transmitter being pressed over 150 times when it is out of range of the WCM and it loses synchronization with the rolling code of the WCM. To correct, insert the key in the ignition and turn to the ON position to synchronize the rolling code.
- When Monitored: With the ignition switch on.
| Possible Causes |
| KEY NOT PROGRAMMED |
| WIRELESS CONTROL MODULE (WCM) |
- When Monitored: At ignition on and during Key Programming Mode.
- Set Condition: When the Wireless Control Module (WCM) does not receive a transponder response after eight consecutive transponder read attempts within two seconds.
| Possible Causes |
| MULTIPLE KEY OPERATION |
| IGNITION KEY |
| WIRELESS CONTROL MODULE |
- When Monitored: With the ignition switch on.
- Set Condition: When the maximum number of key (8) have been programmed into the Wireless Control Module (WCM).
| Possible Causes |
| MAXIMUM AMOUNT OF KEY PROGRAMMED INTO WCM |
| WIRELESS CONTROL MODULE |
- When Monitored: With the ignition switch on.
| Possible Causes |
| WIRELESS CONTROL MODULE (WCM) |
- When Monitored: At ignition on, after ignition on during any rolling code handshake that occurs with the Powertrain Control Module (PCM) due to a Wireless Control Module (WCM) or PCM reset.
- Set Condition: When a PCM STATUS message with a valid key status is not received by the WCM within 3.5 seconds of transmitting the last valid key code message to the PCM.
| Possible Causes |
| VERIFYING PCM VIN |
| REPLACE WCM AND CHECK DTCS |
| PCM |
- When Monitored: At ignition on, after ignition on during any rolling code handshake that occurs with the Powertrain Control Module (PCM) due to a Wireless Control Module (WCM) or PCM reset.
- Set Condition: When a PCM STATUS message with a valid key status is not received by the WCM within 3.5 seconds of transmitting the last valid key code message to the PCM.
| Possible Causes |
| VERIFYING PCM VIN |
| REPLACE WCM AND CHECK DTCS |
| PCM |
- When Monitored: With the ignition switch on.
- Set Condition: The Wireless Control Module (WCM) has detected the ignition switch input voltage below a calibrated value.
| Possible Causes |
| FUSED IGNTION SWITCH OUTPUT (RUN-START) CIRCUIT OPEN |
| WIRELESS CONTROL MODULE |
Scheme 15
Scheme 15: Diagnostic Test
- DETERMINING IF DIAGNOSTIC TROUBLE CODE (DTC) IS CURRENT NOTE: Diagnose any related Powertrain DTCs before continuing. Using a scan tool, read and record DTCs. Using the scan tool, clear DTCs. Perform 5 ignition cycles, leaving the ignition switch on for a minimum of 90 seconds per cycle. Using the scan tool, read DTCs. Does the DTC reset? Yes Go to step 3 No Go to step 2
- INTERMITTENT CONDITION NOTE: Check for any of the follow conditions: Poor wire to terminal connection Corroded terminals Backed out or loose terminals Broken wire internal to the insulation Dirty (partial) module ground With the ignition on, wiggle the related wires. Using a scan tool, read DTCs. Does the DTC reset? Yes Repair the wiring as necessary. Perform the WCM VERIFICATION TEST. See «DTC-Based Diagnostics/MODULE, Wireless Control (WCM) - Standard Procedure»(ref-352678-S27815392192010010600000) . No DTC is not active at this time. Test complete.
- FUSED IGNITION SWITCH OUTPUT (RUN-START) CIRCUIT OPENED NOTE: Check the related fuses to the Fused Ignition Switch Output (Run-Start) circuit. If the fuse is found to be open, repair the circuit for a shorted condition. Turn the ignition off. Disconnect the WCM harness connector. Turn the ignition on. Using a 12 volt test light connected to ground, probe the Fused Ignition Switch Output (Run-Start) circuit in the WCM harness connector. Does the test light illuminate brightly? Yes Go to step 4 No Repair the Fused Ignition Switch Output (Run-Start) circuit for an open. Perform the WCM VERIFICATION TEST. . «DTC-Based Diagnostics/MODULE, Wireless Control (WCM) - Standard Procedure»(ref-352678-S27815392192010010600000) .
- WCM NOTE: A dirty (partial) ground can cause abnormal conditions within a system. Make sure the module has a good ground before continuing. Turn the ignition off. Reconnect the WCM connector Back probe the Fused Ignition Switch Output (Run-Start) circuit. Start the engine. Using the scan tool, view battery voltage under Data Display in the Engine category. Compare the voltage on the scan tool to the voltage reading on the voltmeter. Is the voltage on the scan tool equal to the voltmeter reading +/-.5 volt? Yes Replace and program the Wireless Control Module in accordance with the Service Information. Perform the WCM VERIFICATION TEST. See «DTC-Based Diagnostics/MODULE, Wireless Control (WCM) - Standard Procedure»(ref-352678-S27815392192010010600000) . No Repair the Fused Ignition Switch Output (Run-Start) circuit for high resistance. Perform the WCM VERIFICATION TEST. See «DTC-Based Diagnostics/MODULE, Wireless Control (WCM) - Standard Procedure»(ref-352678-S27815392192010010600000) .
- When Monitored: With the ignition switch on.
- Set Condition: The Wireless Control Module (WCM) has detected the ignition switch input voltage above a calibrated value.
| Possible Causes |
| FUSED IGNITION SWITCH OUTPUT (RUN-START) CIRCUIT |
| WIRELESS CONTROL MODULE |
- When Monitored: With the ignition switch on.
- Set Condition: The Wireless Control Module (WCM) has detected the system voltage is below a calibrated value.
| Possible Causes |
| FUSED IGNITION SWITCH OUTPUT (RUN-START) CIRCUIT OPEN |
| FUSED (B+) CIRCUIT OPEN |
| WIRELESS CONTROL MODULE |
Scheme 16
- DETERMINING IF DIAGNOSTIC TROUBLE CODE (DTC) IS CURRENT NOTE: Diagnose any related Powertrain DTCs before continuing. Using the scan tool, read and record DTCs. Using the scan tool, clear DTCs. Perform 5 ignition cycles, leaving the ignition switch on for a minimum of 90 seconds each cycle. Using the scan tool, read DTCs. Does the DTC reset? Yes Go to step 3 No Go to step 2
- INTERMITTENT CONDITION NOTE: Check for any of the follow conditions: Poor wire to terminal connection Corroded terminals Backed out or loose terminals Broken wire internal to the insulation Dirty (partial) module ground With the ignition on, wiggle the related wires. Using a scan tool, read DTCs. Does the DTC reset? Yes Repair the wiring as necessary. Perform the WCM VERIFICATION TEST. See «DTC-Based Diagnostics/MODULE, Wireless Control (WCM) - Standard Procedure»(ref-352678-S27815392192010010600000) . No DTC is not active at this time. Test complete.
- FUSED IGNITION SWITCH OUTPUT (RUN-START) CIRCUIT OPEN NOTE: Check the related fuses to the Fused Ignition Switch Output (Run-Start) circuit. If the fuse is found to be open repair the circuit for a shorted condition. Turn the ignition off. Disconnect the WCM harness connector. Turn the ignition on. Using a 12 volt test light connected to ground, probe the Fused Ignition Switch Output (Run-Start) circuit in the WCM harness connector. Does the test light illuminate brightly? Yes Go to step 4 No Repair the Fused Ignition Switch Output (Run-Start) circuit for an open. Perform the WCM VERIFICATION TEST. See «DTC-Based Diagnostics/MODULE, Wireless Control (WCM) - Standard Procedure»(ref-352678-S27815392192010010600000) .
- FUSED (B+) CIRCUIT OPEN Turn the ignition off. Using a 12 volt test light connected to ground, probe the Fused (B+) circuit in the WCM harness connector. Does the test light illuminate brightly? Yes Go to step 5 No Repair the Fused (B+) circuit for an open. Perform the WCM VERIFICATION TEST. See «DTC-Based Diagnostics/MODULE, Wireless Control (WCM) - Standard Procedure»(ref-352678-S27815392192010010600000) .
- WCM NOTE: Repeat the below procedure for both the Fused Ignition Switch Output (Run-Start) circuit and the Fused (B+) circuit. NOTE: A dirty (partial) ground can cause abnormal conditions within a system. Make sure the module has a good ground before continuing. Turn the ignition off. Reconnect the WCM connector. Back probe the Fused Ignition Switch Output (Run-Start) circuit and then the Fused (B+) circuit. Start the engine. Using the scan tool, view battery voltage under Data Display in the Engine category. Compare the voltage on the scan tool to the voltage reading on the voltmeter. Is the voltage on the scan tool equal to the voltmeter reading +/-.5 volt? Yes Replace and program the Wireless Control Module in accordance with the Service Information. Perform the WCM VERIFICATION TEST. See «DTC-Based Diagnostics/MODULE, Wireless Control (WCM) - Standard Procedure»(ref-352678-S27815392192010010600000) . No Repair the circuit(s) that indicated the incorrect voltage. Perform the WCM VERIFICATION TEST. See «DTC-Based Diagnostics/MODULE, Wireless Control (WCM) - Standard Procedure»(ref-352678-S27815392192010010600000) .
- When Monitored: With the ignition switch on.
- Set Condition: The Wireless Control Module (WCM) has detected the system voltage above a calibrated value.
| Possible Causes |
| FUSED IGNITION SWITCH OUTPUT (RUN-START) CIRCUIT |
| WIRELESS CONTROL MODULE |
- When Monitored: With the ignition switch on.
- Set Condition: The Wireless Control Module (WCM) has detected the Fused (B+) input voltage below a calibrated value.
| Possible Causes |
| FUSED (B+) CIRCUIT OPEN |
| WIRELESS CONTROL MODULE |
- When Monitored: With the ignition switch on.
- Set Condition: The Wireless Control Module (WCM) has detected the Fused (B+) input voltage above a calibrated value.
| Possible Causes |
| FUSED (B+) CIRCUIT |
| WIRELESS CONTROL MODULE |
- When Monitored: With the ignition switch on.
| Possible Causes |
| WIRELESS CONTROL MODULE (WCM) |
- When Monitored: At ignition on or during any rolling code handshake that occurs with the Powertrain Control Module (PCM) due to a Wireless Control Module (WCM) or PCM reset.
- Set Condition: When a PCM STATUS message with a valid key status is not received by the WCM within 3.5 seconds of transmitting the last valid key code message to the PCM.
| Possible Causes |
| VERIFYING PCM VIN |
| REPLACE WCM AND CHECK DTC'S |
| PCM |
- When Monitored: With the ignition switch on.
| Possible Causes |
| WIRELESS CONTROL MODULE (WCM) |
- When Monitored: With the ignition switch on.
| Possible Causes |
| WIRELESS CONTROL MODULE (WCM) |
- When Monitored: Continuously.
- Set Condition: A low pressure condition exist when the tire pressure falls below or is equal to the low pressure threshold value, as specified for the vehicle.
| Possible Causes |
| INTERMITTENT PERFORMANCE DTC |
| INCORRECT TIRE PRESSURE |
| TIRE PRESSURE MONITORING (TPM) SENSOR |
| WIRELESS CONTROL MODULE (WCM) |
- When Monitored: With the vehicle speed greater than 24 km/h (15 mph).
- Set Condition: The Wireless Control Module (WCM) monitors the signals from the four active Tire Pressure Monitoring (TPM) Sensors. A loss of signal error is detected if data is not received or cannot be accurately decoded over 16 consecutive blocks or a maximum of 20 minutes when the vehicle speed is above 24 km/h (15 mph). An internal TPM Sensor hardware error condition will be set when an error in the accelerometer, pressure sensor or temperature sensor is detected. The Tire Pressure Monitoring (TPM) Telltale Lamp will flash on and off for 75 seconds then remain on solid when a system fault is detected.
| Possible Causes |
| AFTERMARKET TIRES/WHEELS |
| PRESENCE OF AFTERMARKET COMPONENTS THAT INTERFERE WITH RF RECEPTION |
| OUTSIDE INTERFERENCE |
| REMOTE START ANTENNA |
| INTERMITTENT TIRE PRESSURE MONITORING (TPM) SENSOR INTERNAL DTC |
| TIRE PRESSURE MONITORING (TPM) SENSOR |
| TIRE PRESSURE MONITORING (TPM) TRANSPONDER |
| WIRELESS CONTROL MODULE (WCM) |
Note. A system fault can occur by many scenarios, including the following: Signal interference due to electronic devices or driving next to facilities emitting the same Radio Frequencies (RF) as the TPM sensors. Installing aftermarket window tinting that affects radio wave signals. Accumulation of snow or ice around the wheels or wheel housings. Using tire chains on the vehicle. Using wheels/tires not equipped with TPM Sensors.
- When Monitored: With the vehicle speed greater than 24 km/h (15 mph).
- Set Condition: The Wireless Control Module (WCM) monitors the signals from the four active Tire Pressure Monitoring (TPM) Sensors. A loss of signal error is detected if data is not received or cannot be accurately decoded over 16 consecutive blocks or a maximum of 20 minutes when the vehicle speed is above 24 km/h (15 mph). An internal TPM Sensor hardware error condition will be set when an error in the accelerometer, pressure sensor or temperature sensor is detected. The Tire Pressure Monitoring (TPM) Telltale Lamp will flash on and off for 75 seconds then remain on solid when a system fault is detected.
| Possible Causes |
| AFTERMARKET TIRES/WHEELS |
| PRESENCE OF AFTERMARKET COMPONENTS THAT INTERFERE WITH RF RECEPTION |
| OUTSIDE INTERFERENCE |
| REMOTE START ANTENNA |
| INTERMITTENT TIRE PRESSURE MONITORING (TPM) SENSOR INTERNAL DTC |
| TIRE PRESSURE MONITORING (TPM) SENSOR |
| TIRE PRESSURE MONITORING (TPM) TRANSPONDER |
| WIRELESS CONTROL MODULE (WCM) |
Note. A system fault can occur by many scenarios, including the following: Signal interference due to electronic devices or driving next to facilities emitting the same Radio Frequencies (RF) as the TPM sensors. Installing aftermarket window tinting that affects radio wave signals. Accumulation of snow or ice around the wheels or wheel housings. Using tire chains on the vehicle. Using wheels/tires not equipped with TPM Sensors.
- When Monitored: With the vehicle speed greater than 24 km/h (15 mph).
- Set Condition: The Wireless Control Module (WCM) monitors the signals from the four active Tire Pressure Monitoring (TPM) Sensors. A loss of signal error is detected if data is not received or cannot be accurately decoded over 16 consecutive blocks or a maximum of 20 minutes when the vehicle speed is above 24 km/h (15 mph). An internal TPM Sensor hardware error condition will be set when an error in the accelerometer, pressure sensor or temperature sensor is detected. The Tire Pressure Monitoring (TPM) Telltale Lamp will flash on and off for 75 seconds then remain on solid when a system fault is detected.
| Possible Causes |
| AFTERMARKET TIRES/WHEELS |
| PRESENCE OF AFTERMARKET COMPONENTS THAT INTERFERE WITH RF RECEPTION |
| OUTSIDE INTERFERENCE |
| REMOTE START ANTENNA |
| INTERMITTENT TIRE PRESSURE MONITORING (TPM) SENSOR INTERNAL DTC |
| TIRE PRESSURE MONITORING (TPM) SENSOR |
| TIRE PRESSURE MONITORING (TPM) TRANSPONDER |
| WIRELESS CONTROL MODULE (WCM) |
Note. A system fault can occur by many scenarios, including the following: Signal interference due to electronic devices or driving next to facilities emitting the same Radio Frequencies (RF) as the TPM sensors. Installing aftermarket window tinting that affects radio wave signals. Accumulation of snow or ice around the wheels or wheel housings. Using tire chains on the vehicle. Using wheels/tires not equipped with TPM Sensors.
- When Monitored: With the vehicle speed greater than 24 km/h (15 mph).
- Set Condition: The WCM Module monitors the signals from the four active Tire Pressure Monitoring (TPM) Sensors. A loss of signal error is detected if data is not received or cannot be accurately decoded over 16 consecutive blocks or a maximum of 20 minutes when the vehicle speed is above 24 km/h (15 mph). An internal TPM Sensor hardware error condition will set when an error in the accelerometer, pressure sensor or temperature sensor is detected. The Tire Pressure Monitoring (TPM) Telltale Lamp will flash on and off for 75 seconds then remain on solid when a system fault is detected.
| Possible Causes |
| AFTERMARKET TIRES/WHEELS |
| PRESENCE OF AFTERMARKET COMPONENTS THAT INTERFERE WITH RF RECEPTION |
| OUTSIDE INTERFERENCE |
| REMOTE START ANTENNA |
| INTERMITTENT TIRE PRESSURE MONITORING (TPM) SENSOR INTERNAL DTC |
| TIRE PRESSURE MONITORING (TPM) SENSOR |
| TIRE PRESSURE MONITORING (TPM) TRANSPONDER |
| WIRELESS CONTROL MODULE (WCM) |
Note. A system fault can occur by many scenarios, including the following: Signal interference due to electronic devices or driving next to facilities emitting the same Radio Frequencies (RF) as the TPM sensors. Installing aftermarket window tinting that affects radio wave signals. Accumulation of snow or ice around the wheels or wheel housings. Using tire chains on the vehicle. Using wheels/tires not equipped with TPM Sensors.
- When Monitored: During vehicle TPM Sensor ID locate process.
- Set Condition: When installing a new Wireless Control Module (WCM).
| Possible Causes |
| INCORRECT TIRE PRESSURE MONITORING (TPM) SENSOR ID(S) |
| TIRE PRESSURE MONITORING (TPM) SENSOR |
| WIRELESS CONTROL MODULE (WCM) |