For 1990-2009 cars

### 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 provides an overview of each diagnostic category.

### DTC Descriptors

DTC B096C 01: Parking Aid Side Sensor Left Front Circuit Short to Battery
DTC B096C 01: Parking Aid Side Sensor Left Front Circuit Low Voltage/Open
DTC B096C 08: Parking Aid Side Sensor Left Front Circuit Performance - Signal Invalid
DTC B096C 21: Parking Aid Side Sensor Left Front Circuit Incorrect Period
DTC B096C 3A: Parking Aid Side Sensor Left Front Circuit Incorrect Component Installed
DTC B096D 01: Parking Aid Side Sensor Right Front Circuit Short to Battery
DTC B096D 06: Parking Aid Side Sensor Right Front Circuit Low Voltage/Open
DTC B096D 08: Parking Aid Side Sensor Right Front Circuit Performance - Signal Invalid
DTC B096D 21: Parking Aid Side Sensor Right Front Circuit Incorrect Period
DTC B096D 3A: Parking Aid Side Sensor Right Front Circuit Incorrect Component Installed

### Diagnostic Fault Information

Circuit | Short to Ground | Open/High Resistance | Short to Voltage | Signal Performance
--- | --- | --- | --- | ---
8 V Reference | B0954 06, B0955 06, B0956 06, B0957 06 --

B0958 06,

B0959 06,

B0960 06,

B0961 06,

--

B096C 06,

B096D 06,

--

B138A 03

B0954 06,

B0955 06,

B0956 06,

B0957 06

--

B0958 06,

B0959 06,

B0960 06,

B0961 06,

--

B096C 06,

B096D 06

B0954 06,

B0955 06,

B0956 06,

B0957 06

--

B0958 06,

B0959 06,

B0960 06,

B0961 06,

--

B096C 06,

B096D 06,

--

B138A 07

--

Left Side Object Sensor Signal | B096C 06 | B096C 06 | B096C 01 | B096C 08, B096C 21
Right Side Object Sensor Signal | B096D 06 | B096D 06 | B096D 01 | B096D 08, B096D 21
Low Reference | -- | B0954 06, B0955 06, B0956 06, B0957 06 --

B0958 06,

B0959 06,

B0960 06,

B0961 06

--

B096C 06,

B096D 06

--

--

### Circuit/System Description

The object sensors are 3-wire sensors that are used to determine the distance between the vehicle and an object of interest. The object alarm module supplies 8 V to the object sensors via the 8 V reference circuit and provides ground via the low reference circuit. The object alarm module triggers the sensors in a sequential loop. After each sensor transmits, the object alarm module uses the sensor ring received though the signal circuit to calculate the distance and position of an object.

### Conditions for Running the DTC

• | Ignition ON

• | The parallel parking assist is activated. The activation takes place through operating the parallel parking assist switch.

### Conditions for Setting the DTC

#### B096C 01 or B096D 01

The object alarm module has detected the voltage at the sensor circuit is greater than 11.5 V.

#### B096C 06 or B096D 06

The object alarm module has detected the voltage at the sensor circuit is less than 0.5 V.

#### B096C 08 or B096D 08

The object alarm module has received an invalid signal.

#### B096C 21 or B096D 21

The object sensor determines no change in the position of an object while the vehicle is in motion.

#### B096C 3A or B096D 3A

The object alarm module determines the wrong sensor type is installed.

### Action Taken When the DTC Sets

• | The parallel parking assist is disabled.

• | An indicator in the driver information center shows the parking assistance is not available.

### Conditions for Clearing the DTC

The condition for setting the DTC is no longer present.

### Reference Information

#### Schematic Reference

Object Detection Schematics

#### Connector End View Reference

Component Connector End Views

#### Description and Operation

Object Detection 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 scan tool information

### Circuit/System Verification

1. Verify that DTC B138A 03 or B138A 07 is not present.

⇒ | If DTC is present, refer to DTC B138A.

2. Verify that DTC B096C 3A or B096D 3A is not present.

⇒ | If DTC is present, replace the appropriate sensor with a sensor by correct sensor type.

3. Verify that DTC B096C 21 or B096D 21 is not present.

⇒ | If DTC is present, check the appropriate sensor for contamination with mud, ice or snow. If no contamination is diagnosed, replace the sensor.

### Circuit/System Testing

1. Ignition OFF for 30 s, disconnect the harness connector at the appropriate side object sensor.
2. Test for less than 5 Ω between the low reference circuit terminal 2 and ground.

⇒ | If greater than the specified range, test the low reference circuit for an open/high resistance. If the circuit tests normal, replace the K41 Object Alarm Module.

3. Ignition ON, activate the park assist, test for 7.5-9.0 V between the 8 V reference circuit terminal 1 and ground.

⇒ | If less than the specified range, test the 8 V reference circuit for an open/high resistance. If the circuit tests normal, replace the K41 Object Alarm Module.

4. Ignition OFF, remove the malfunctioning object sensor and swap locations with another properly functioning rear object sensor. Connect the harness connector at both sensors.
5. Ignition ON, verify the DTC is set for the new location in which the malfunctioning sensor is installed.

⇒ | If the DTC does not set for the new location, test the signal circuit terminal 3 for a short to voltage, short to ground, or an open/high resistance. If the circuit tests normal, replace the K41 Object Alarm Module.

6. If the DTC sets for the new location in which the malfunctioning sensor is installed, replace the appropriate side object sensor.

### Repair Instructions

Perform the Diagnostic Repair Verification after completing the diagnostic procedure.

• | Link X to Side Object Sensor Left Replacement

• | Link X to Side Object Sensor Right Replacement

• | Control Module References for Object Alarm Module replacement, setup and programming