WHEN MONITORED
With the ignition on and the vehicle in reverse.
SET CONDITION
The Park Assist Module detects a short to ground on the Park Assist Sensor Signal circuit.
POSSIBLE CAUSES
| Possible Causes |
|---|
| PARK ASSIST SENSOR DISCONNECTED |
| PARK ASSIST SENSOR SIGNAL CIRCUIT SHORTED TO GROUND |
| PARK ASSIST SENSOR SIGNAL CIRCUIT SHORTED TO THE PARK ASSIST SENSOR GROUND CIRCUIT |
| PARK ASSIST SENSOR SIGNAL CIRCUIT OPEN |
| PARK ASSIST SENSOR SUPPLY CIRCUIT OPEN |
| PARK ASSIST SENSOR |
| PARK ASSIST MODULE |
With the ignition on and the vehicle in reverse.
The Park Assist Module detects an open or short to voltage on the Park Assist Sensor Signal circuit.
| Possible Causes |
|---|
| PARK ASSIST SENSOR SIGNAL CIRCUIT SHORTED TO VOLTAGE |
| PARK ASSIST SENSOR SIGNAL CIRCUIT SHORTED TO THE PARK ASSIST SENSOR SUPPLY CIRCUIT |
| PARK ASSIST SENSOR GROUND CIRCUIT OPEN |
| PARK ASSIST SENSOR |
| PARK ASSIST MODULE |
With the ignition on and the vehicle in reverse.
During the self-test while vehicle is in drive between 11 km/h (7 mph) and 40 km/h (25 mph).
The Park Assist Module detects an internal sensor error.
| Possible Causes |
|---|
| PARK ASSIST SENSOR MEMBRANE OBSTRUCTION (ICE, SNOW, MUD, DIRT COVERING FASCIA) |
| PARK ASSIST SENSOR CONNECTOR OBSTRUCTION (ICE, SNOW, MUD, DIRT) |
| DECOUPLING RING MISSING/MOUNTED WRONG |
| OBJECTS (SUCH AS LICENSE PLATES, BIKE RACKS, TRAILER HITCHES) IN CLOSE RANGE TO THE SENSOR |
| PARK ASSIST SENSOR |
With the ignition on and the vehicle in reverse.
If the system detects data corruption in the transmission in the internal communication line between the module and sensors, this code will set.
| Possible Causes |
|---|
| INCORRECT PARK ASSIST SENSOR INSTALLED |
| PARK ASSIST SENSOR SIGNAL CIRCUIT SHORTED TO GROUND |
| PARK ASSIST SENSOR SIGNAL CIRCUIT SHORTED TO BATTERY |
| PARK ASSIST SENSOR SIGNAL CIRCUIT OPEN |
| PARK ASSIST SENSOR |
| PARK ASSIST MODULE |
With the ignition on and the vehicle in reverse.
The Park Assist Module detects a short to ground on the Park Assist Sensor Signal circuit.
| Possible Causes |
|---|
| PARK ASSIST SENSOR DISCONNECTED |
| PARK ASSIST SENSOR SIGNAL CIRCUIT SHORTED TO GROUND |
| PARK ASSIST SENSOR SIGNAL CIRCUIT SHORTED TO THE PARK ASSIST SENSOR GROUND CIRCUIT |
| PARK ASSIST SENSOR SIGNAL CIRCUIT OPEN |
| PARK ASSIST SENSOR SUPPLY CIRCUIT OPEN |
| PARK ASSIST SENSOR |
| PARK ASSIST MODULE |
With the ignition on and the vehicle in reverse.
The Park Assist Module detects an open or short to voltage on the Park Assist Sensor Signal circuit.
| Possible Causes |
|---|
| PARK ASSIST SENSOR SIGNAL CIRCUIT SHORTED TO VOLTAGE |
| PARK ASSIST SENSOR SIGNAL CIRCUIT SHORTED TO THE PARK ASSIST SENSOR SUPPLY CIRCUIT |
| PARK ASSIST SENSOR GROUND CIRCUIT OPEN |
| PARK ASSIST SENSOR |
| PARK ASSIST MODULE |
With the ignition on and the vehicle in reverse.
During the self-test while vehicle is in drive between 11 km/h (7 mph) and 40 km/h (25 mph).
The Park Assist Module detects an internal sensor error.
| Possible Causes |
|---|
| PARK ASSIST SENSOR MEMBRANE OBSTRUCTION (ICE, SNOW, MUD, DIRT COVERING FASCIA) |
| PARK ASSIST SENSOR CONNECTOR OBSTRUCTION (ICE, SNOW, MUD, DIRT) |
| DECOUPLING RING MISSING/MOUNTED WRONG |
| OBJECTS (SUCH AS LICENSE PLATES, BIKE RACKS, TRAILER HITCHES) IN CLOSE RANGE TO THE SENSOR |
| PARK ASSIST SENSOR |
With the ignition on and the vehicle in reverse.
If the system detects data corruption in the transmission in the internal communication line between the module and sensors, this code will set.
| Possible Causes |
|---|
| INCORRECT PARK ASSIST SENSOR INSTALLED |
| PARK ASSIST SENSOR SIGNAL CIRCUIT SHORTED TO GROUND |
| PARK ASSIST SENSOR SIGNAL CIRCUIT SHORTED TO BATTERY |
| PARK ASSIST SENSOR SIGNAL CIRCUIT OPEN |
| PARK ASSIST SENSOR |
| PARK ASSIST MODULE |
With the ignition on and the vehicle in reverse.
The Park Assist Module detects a short to ground on the Park Assist Sensor Signal circuit.
| Possible Causes |
|---|
| PARK ASSIST SENSOR DISCONNECTED |
| PARK ASSIST SENSOR SIGNAL CIRCUIT SHORTED TO GROUND |
| PARK ASSIST SENSOR SIGNAL CIRCUIT SHORTED TO THE PARK ASSIST SENSOR GROUND CIRCUIT |
| PARK ASSIST SENSOR SIGNAL CIRCUIT OPEN |
| PARK ASSIST SENSOR SUPPLY CIRCUIT OPEN |
| PARK ASSIST SENSOR |
| PARK ASSIST MODULE |
With the ignition on and the vehicle in reverse.
The Park Assist Module detects an open or short to voltage on the Park Assist Sensor Signal circuit.
| Possible Causes |
|---|
| PARK ASSIST SENSOR SIGNAL CIRCUIT SHORTED TO VOLTAGE |
| PARK ASSIST SENSOR SIGNAL CIRCUIT SHORTED TO THE PARK ASSIST SENSOR SUPPLY CIRCUIT |
| PARK ASSIST SENSOR GROUND CIRCUIT OPEN |
| PARK ASSIST SENSOR |
| PARK ASSIST MODULE |
With the ignition on and the vehicle in reverse.
During the self-test while vehicle is in drive between 11 km/h (7 mph) and 40 km/h (25 mph).
The Park Assist Module detects an internal sensor error.
| Possible Causes |
|---|
| PARK ASSIST SENSOR MEMBRANE OBSTRUCTION (ICE, SNOW, MUD, DIRT COVERING FASCIA) |
| PARK ASSIST SENSOR CONNECTOR OBSTRUCTION (ICE, SNOW, MUD, DIRT) |
| DECOUPLING RING MISSING/MOUNTED WRONG |
| OBJECTS (SUCH AS LICENSE PLATES, BIKE RACKS, TRAILER HITCHES) IN CLOSE RANGE TO THE SENSOR |
| PARK ASSIST SENSOR |
With the ignition on and the vehicle in reverse.
If the system detects data corruption in the transmission in the internal communication line between the module and sensors, this code will set.
| Possible Causes |
|---|
| INCORRECT PARK ASSIST SENSOR INSTALLED |
| PARK ASSIST SENSOR SIGNAL CIRCUIT SHORTED TO GROUND |
| PARK ASSIST SENSOR SIGNAL CIRCUIT SHORTED TO BATTERY |
| PARK ASSIST SENSOR SIGNAL CIRCUIT OPEN |
| PARK ASSIST SENSOR |
| PARK ASSIST MODULE |
With the ignition on and the vehicle in reverse.
The Park Assist Module detects a short to ground on the Park Assist Sensor Signal circuit.
| Possible Causes |
|---|
| PARK ASSIST SENSOR DISCONNECTED |
| PARK ASSIST SENSOR SIGNAL CIRCUIT SHORTED TO GROUND |
| PARK ASSIST SENSOR SIGNAL CIRCUIT SHORTED TO THE PARK ASSIST SENSOR GROUND CIRCUIT |
| PARK ASSIST SENSOR SIGNAL CIRCUIT OPEN |
| PARK ASSIST SENSOR SUPPLY CIRCUIT OPEN |
| PARK ASSIST SENSOR |
| PARK ASSIST MODULE |
With the ignition on and the vehicle in reverse.
The Park Assist Module detects an open or short to voltage on the Park Assist Sensor Signal circuit.
| Possible Causes |
|---|
| PARK ASSIST SENSOR SIGNAL CIRCUIT SHORTED TO VOLTAGE |
| PARK ASSIST SENSOR SIGNAL CIRCUIT SHORTED TO THE PARK ASSIST SENSOR SUPPLY CIRCUIT |
| PARK ASSIST SENSOR GROUND CIRCUIT OPEN |
| PARK ASSIST SENSOR |
| PARK ASSIST MODULE |
With the ignition on and the vehicle in reverse.
During the self-test while vehicle is in drive between 11 km/h (7 mph) and 40 km/h (25 mph).
The Park Assist Module detects an internal sensor error.
| Possible Causes |
|---|
| PARK ASSIST SENSOR MEMBRANE OBSTRUCTION (ICE, SNOW, MUD, DIRT COVERING FASCIA) |
| PARK ASSIST SENSOR CONNECTOR OBSTRUCTION (ICE, SNOW, MUD, DIRT) |
| DECOUPLING RING MISSING/MOUNTED WRONG |
| OBJECTS (SUCH AS LICENSE PLATES, BIKE RACKS, TRAILER HITCHES) IN CLOSE RANGE TO THE SENSOR |
| PARK ASSIST SENSOR |
With the ignition on and the vehicle in reverse.
If the system detects data corruption in the transmission in the internal communication line between the module and sensors, this code will set.
| Possible Causes |
|---|
| INCORRECT PARK ASSIST SENSOR INSTALLED |
| PARK ASSIST SENSOR SIGNAL CIRCUIT SHORTED TO GROUND |
| PARK ASSIST SENSOR SIGNAL CIRCUIT SHORTED TO BATTERY |
| PARK ASSIST SENSOR SIGNAL CIRCUIT OPEN |
| PARK ASSIST SENSOR |
| PARK ASSIST MODULE |
B210C-16-BATTERY VOLTAGE INPUT - CIRCUIT VOLTAGE BELOW THRESHOLD
For a complete wiring diagram, refer to appropriate SYSTEM WIRING DIAGRAMS article .
Scheme 2
With the ignition on and the vehicle in reverse.
Park Assist Module supply voltage less than 6.5 volts.
| Possible Causes |
|---|
| FUSED RUN RELAY OUTPUT CIRCUIT EXCESSIVE RESISTANCE |
| GROUND CIRCUIT EXCESSIVE RESISTANCE |
| VEHICLE CHARGING SYSTEM |
| PARK ASSIST MODULE |
B210C-17-BATTERY VOLTAGE INPUT - CIRCUIT VOLTAGE ABOVE THRESHOLD
For a complete wiring diagram, refer to appropriate SYSTEM WIRING DIAGRAMS article .
With the ignition on and the vehicle in reverse.
Park Assist Module supply voltage greater than 16.6 volts.
| Possible Causes |
|---|
| VEHICLE CHARGING SYSTEM |
| PARK ASSIST MODULE |
With the ignition on and the vehicle in reverse.
Park Assist Sensor supply voltage less than 5.6 volts.
| Possible Causes |
|---|
| PARK ASSIST SENSOR SUPPLY CIRCUIT EXCESSIVE RESISTANCE |
| PARK ASSIST SENSOR SUPPLY CIRCUIT SHORTED TO GROUND |
| PARK ASSIST SENSOR |
| PARK ASSIST MODULE |
With the ignition on and the vehicle in reverse.
Park Assist Sensor supply voltage greater than 20.0 volts.
| Possible Causes |
|---|
| PARK ASSIST MODULE |
B21DD-16-SYSTEM VOLTAGE - CIRCUIT VOLTAGE BELOW THRESHOLD
For a complete wiring diagram, refer to appropriate SYSTEM WIRING DIAGRAMS article .
With the ignition on.
Vehicle System voltage less than 10.0 volts.
| Possible Causes |
|---|
| VEHICLE CHARGING SYSTEM |
| MODULE THAT SET THIS DTC |
B21DD-17-SYSTEM VOLTAGE - CIRCUIT VOLTAGE ABOVE THRESHOLD
For a complete wiring diagram, refer to appropriate SYSTEM WIRING DIAGRAMS article .
With the ignition on.
Vehicle System voltage greater than 16.0 Volts.
| Possible Causes |
|---|
| VEHICLE CHARGING SYSTEM |
| MODULE THAT SET THIS DTC |
With the ignition on.
The Park Assist Module detects an internal failure.
| Possible Causes |
|---|
| PARK ASSIST MODULE |
Ignition run time is greater than one second. Battery voltage between 9 and 16 volts. Engine run time greater than three seconds.
Bus messages not received from the Body Control Module (BCM) for approximately two to five seconds.
| Possible Causes |
|---|
| CAN C BUS CIRCUITS OPEN OR SHORTED |
| DTCS RELATED TO BATTERY VOLTAGE, IGNITION, OR VIN MESSAGES |
| BODY CONTROL MODULE (BCM) POWER AND GROUND |
| BCM NOT CONFIGURED CORRECTLY |
| BODY CONTROL MODULE (BCM) |
| MODULE THAT SET THIS DTC |
Continuously when the ignition is on.
The battery voltage between 10 and 16 Volts.
Body Control Module (BCM) is configured correctly.
Bus messages not received from the Powertrain Control Module (PCM) for approximately two to five seconds.
| Possible Causes |
|---|
| CAN C BUS CIRCUITS OPEN OR SHORTED |
| DTCS RELATED TO BATTERY VOLTAGE, IGNITION, OR VIN MESSAGES |
| POWERTRAIN CONTROL MODULES POWER AND GROUND |
| BCM NOT CONFIGURED CORRECTLY |
| POWERTRAIN CONTROL MODULE (PCM) |
| ANY MODULE THAT SET THIS DTC |
With the ignition on.
Battery voltage between 10 and 16 volts.
Body Control Module (BCM) is configured correctly.
Bus messages not received from the Transmission Control Module (TCM) for approximately 500ms.
| Possible Causes |
|---|
| CAN BUS CIRCUITS OPEN OR SHORTED |
| DTCS RELATED TO BATTERY VOLTAGE, IGNITION, OR VIN MESSAGES |
| TRANSMISSION CONTROL MODULE (TCM) POWER AND GROUND |
| BCM NOT CONFIGURED CORRECTLY |
| TRANSMISSION CONTROL MODULE (TCM) |
| MODULE THAT SET THIS DTC |
Continuously when the ignition is on.
The battery voltage between 10 and 16 volts.
Body Control Module (BCM) is configured correctly.
Bus messages not received from the Anti-lock Brake System (ABS) Module for approximately two to five seconds.
| Possible Causes |
|---|
| CAN C BUS CIRCUITS OPEN OR SHORTED |
| DTCS RELATED TO BATTERY VOLTAGE, IGNITION, OR VIN MESSAGES |
| ANTI LOCK BRAKE MODULE (ABS) POWER AND GROUND |
| BCM NOT CONFIGURED CORRECTLY |
| ANTI LOCK BRAKE MODULE (ABS) |
| MODULE THAT SET THIS DTC |
Continuously when the ignition is on.
The battery voltage between 10.0 and 16.0 Volts.
Body Control Module (BCM) is configured correctly.
Bus messages not received from the Body Control Module (BCM) for approximately two to five seconds.
| Possible Causes |
|---|
| CAN BUS CIRCUITS OPEN OR SHORTED |
| DTCS RELATED TO BATTERY VOLTAGE, IGNITION, OR VIN MESSAGES |
| BODY CONTROL MODULE POWER AND GROUND |
| BCM NOT CONFIGURED CORRECTLY |
| BODY CONTROL MODULE (BCM) |
| MODULE THAT SET THIS DTC |
With the ignition on and the vehicle in reverse.
VIN data not received from Powertrain Control Module (PCM).
| Possible Causes |
|---|
| NO COMMUNICATION WITH POWERTRAIN CONTROL MODULE (PCM) |
| DTCS STORED OR ACTIVE IN THE PCM |
| ACTIVE COMMUNICATION DTCS IN THE BCM |
| PARK ASSIST MODULE |
With the ignition on and the vehicle in reverse.
Shift Lever data not received from the Transmission Control Module (TCM).
| Possible Causes |
|---|
| NO COMMUNICATION WITH THE TRANSMISSION CONTROL MODULE (TCM) |
| DTCS STORED OR ACTIVE IN THE TCM |
| PARK ASSIST MODULE (PAM) |
With the ignition on and the vehicle in reverse.
Vehicle speed data not received from Antilock Brake Module (ABS).
| Possible Causes |
|---|
| NO COMMUNICATION WITH ANTILOCK BRAKE MODULE (ABS) |
| DTCS STORED OR ACTIVE IN THE ANTILOCK BRAKE MODULE (ABS) |
| ACTIVE COMMUNICATION DTCS IN THE BCM |
| PARK ASSIST MODULE |
With the ignition on and the vehicle in reverse.
Data not received from the Body Control Module (BCM).
| Possible Causes |
|---|
| NO COMMUNICATION WITH THE BODY CONTROL MODULE (BCM) |
| DTCS STORED OR ACTIVE IN THE BCM |
| PARK ASSIST MODULE |