SECTION 9O
BUMPERS AND FASCIAS
Caution : Disconnect the negative battery cable before removing or installing any electrical unit or when atool or equipment could easily come in contact with exposed electrical terminals. Disconnecting this cablewill help prevent personal injury and damage to the vehicle. The ignition must also be in LOCK unless otherwisenoted.
SPECIFICATIONS
Fastener Tightening Specifications
Application | N•m | Lb-Ft | Lb-In |
Front Impact Bar Bolts | 22 | 16 | - |
Front Bumper Lower Fascia Bolts | 10 | 7 | - |
Wheelhouse Liner Bolts | 2 | - | 18 |
Rear Impact Bar Bolts | 22 | 16 | - |
Rear Bumper Upper Fasicia Screws | 2 | - | 18 |
Rear Object Alarm Assembly Screw | 4 | - | 36 |
Rear Object Alarm Control Module Nuts | 8 | - | 71 |
Power Steering Fluid Return Pipe Securing Bolts | 10 | 7 | - |
SCHEMATIC AND ROUTING DIAGRAMS
Parking Assist System
DIAGNOSIS
Parking Assist Warning Indicator Check
| Step | Action | Value(s) | Yes | No |
| 1 | - Remove the instrument cluster.
- Check the parking assist warning indicator bulb.
Is the bulb OK? | - | Go to Step 3 | Go to Step 2 |
| 2 | Replace the warning indicator bulb. | - | - | - |
| 3 | Check the parking assist warning fuse F13 in the I/P fuse block. Is the fuse F13 blown? | - | Go to Step 4 | Go to Step 5 |
| 4 | - Check for a short circuit and repair if necessary.
- Replace the fuse F13.
| - | - | - |
| 5 | - Turn the ignition ON.
- Check the voltage at fuse F13.
Is the voltage is within the specified value? | 9 - 16 V | Go to Step 7 | Go to Step 6 |
| 6 | Repair the open power supply circuit for fuse F13. | - | - | - |
| 7 | Check for an open or short to ground of circuit between fuse F13 and the cluster. Did you find and correct the condition? | - | System OK | Go to Step 8 |
| 8 | - Disconnect the connector of parking assist control module.
- Check for an open or short to ground of circuit between the terminal 12 of cluster and the terminal 15 of parking assist control module.
Did you find and correct the condition? | - | System OK | Go to Step 9 |
| 9 | Check for an open between the ground circuit and the control module. Did you find and correct the condition? | - | System OK | Go to Step 10 |
| 10 | - Replace the parking assist control module.
- Perform the BCM reprogramming procedure.
Did you complete the replacement? | - | | - |
Parking Assist System Malfunction Check
Circuit Description
The Parking Assist System inform the driver of the system fault by warning indicator and the alarm.
- The fault recognition by warning indicator
- When the ignition switch is first turned ON, the ignition voltage is supplied from fuse F18 in I/P fuse block to find the Parking Assist System(PAS) control module at input terminal 1. The PAS control module respond by illuminating the warning indicator on the cluster for 4 seconds and then turning it off while the control module performs self-test on the PAS. At this time if the control module finds the malfunction in the system, the control module will continue to illuminate the warning indicator until the malfunction is removed.
- The fault recognition by the alarm
- When ignition switch is being ON, if the gear select lever is moved into "R", the PAS control module perform the self-test and ring the alarm. If system fault do not exist, control module ring the alarm just 1 time for approximately 0.3 seconds.
- If system fault exist, control module ring the alarm 3 times for approximately 1.5 seconds and that cycle is repeated 5 times.
Diagnosis Aids
If the warning indicator is illuminated by the malfunction, perform the self sensor error check before performing the parking assist system malfunction check. For the self sensor error check, refer to "Self Sensor Error Check" in this section.
| Step | Action | Value(s) | Yes | No |
| 1 | - Turn the ignition ON.
- Observe the parking assist warning indicator.
Does the indicator illuminate for 4 seconds and then off? | - | System OK | Go to Step 2 |
| 2 | Position the gear select lever into "R". Does the parking assist module ring the alarm as normal Assist Warning alarm mode(only 1 time for 0.3 seconds and then off)? | - | | Go to Step 3 |
| 3 | Did you find and correct the condition? | - | Go to Step 1 | Go to Step 4 |
| 4 | - Disconnect the connector of parking assist alarm.
- Turn the ignition ON.
- Check the voltage between the supply voltage circuit of alarm wiring connector and a good ground.
Is the voltage approximately the specified value? | ≈ 8 V | Go to Step 6 | Go to Step 5 |
| 5 | - Turn the ignition OFF.
- Disconnect the connector of parking assist control module.
- Check for an open or a short to ground/B+ of supply voltage circuit at the alarm wiring connector.
Did you find and correct the condition? | - | Go to Step 13 | Go to Step 7 |
| 6 | Check for following circuits of the alarm wiring connector for the indicated condition. - an open and a short to ground/B+ for signal circuit
- an open for ground circuit
Did you find and correct the condition? | - | Go to Step 13 | Go to Step 9 |
| 7 | - Turn the ignition OFF.
- Check for an open or a short to ground of the ignitoin voltage circuit at control module wiring connector.
Did you find and correct the condition? | - | Go to Step 13 | Go to Step 8 |
| 8 | Check for an open of the ground circuit at control module wiring connector. Did you find and correct the condition? | - | Go to Step 13 | Go to Step 12 |
| 9 | Check for an open or short to ground of the circuits between the BCM and parking assist control module. Did you find and correct the condition? | - | Go to Step 13 | Go to Step 10 |
| 10 | Check for an open or a short to ground of park brake switch circuit. Did you find and correct the condition? | - | Go to Step 13 | Go to Step 11 |
| 11 | - Replace the parking assist alarm.
- Reconnect the all PAS components.
- Turn the ignition ON.
- Observe the parking assist warning indicator.
Does the indicator illuminate for 4 seconds and then off? | - | Go to Step 13 | Go to Step 12 |
| 12 | - Replace the parking assist control module.
- Perform the BCM reprogramming procedure.
Did you complete the replacement? | - | Go to Step 13 | - |
| 13 | Operate the system in order to verify the repair. Did you correct the condition? | - | System OK | Go to Step 1 |
Self Sensor Error Check
Circuit Description
If system fault is detected by warning indicator or the alarm, perform the diagnosis for sensor circuit before the other circuits in the parking assist system. The parking assist control module can perform the error check for the each rear object sensor by using self sensor error check mode. Below is the procedure that should be performed in order to enter the sensor error check mode.
- Turn the ignition ON.
- Turn the parking brake switch On/Off over 3 times by locking and unlocking the parking brake over 3 times within 10 seconds after the ignition switch is turned ON.
- The control module will start the sensor error check mode.
Sensor Error Alarm Pattern
If the sensor circuit fault is not detected, control module will ring the normal alarm(1 time for 0.3 second).
If the sensor circuit fault is detected, the alarm pattern will follow the table below according to the faulty sensor circuit.
Left Corner Sensor
Left Middle Sensor
Right Middle Sensor
Right Corner Sensor
- 1 cycle is 3 seconds.
- The alarm will perform the above sequence for 2 cycles.
- If the fault is detected in several sensors, the control module will repeat the alarm pattern twice for the faulty sensors, following the order (Left Corner → Left Middle → Right Middle → Right Corner).
| Step | Action | Value(s) | Yes | No |
| 1 | - Turn the ignition ON.
- Observe the parking assist warning indicator.
Does the indicator illuminate for 4 seconds and then off? | - | System OK | Go to Step 2 |
| 2 | - Remove all objects at least 2 meters from the rear bumper.
- Start the sensor error check mode by turning the Indicator Check" parking brake switch On/Off over 3 times within 10 seconds after the ignition ON.
Does the alarm appear as the normal mode(only 1 time for 0.3 seconds)? | - | | Go to Step 3 |
| 3 | Determine which sensor circuit(s) has the fault by referring to Sensor Error Alarm Pattern. Do you find the suspected sensor circuit(s)? | - | Go to Step 4 | - |
| 4 | Check for a poor connection on the suspected sensor(s). Do you find and correct the condition? | - | Go to Step 11 | Go to Step 5 |
| 5 | - Turn the ignition OFF.
- Disconnect the connector of suspected sensor(s).
- Turn the ignition ON.
- Check the voltage the between the signal circuit and the low reference circuit of suspected sensor(s).
Is the voltage within the specified value? | ≈ 8 V | Go to Step 8 | Go to Step 6 |
| 6 | - Turn the ignition OFF.
- Disconnect the connector of parking assist control module.
- Check for an open or a short to ground/B+ of the signal circuit at suspected sensor circuit(s).
Did you find and correct the condition? | - | Go to Step 11 | Go to Step 7 |
| 7 | Check for an open or a short to ground of the low reference circuit at suspected sensor circuit(s). Do you find and correct the condition? | - | Go to Step 11 | Go to Step 10 |
| 8 | Check for a poor connection on the parking assist control module. Did you find and correct the condition? | - | Go to Step 11 | Go to Step 9 |
| 9 | Replace the suspected rear object sensor(s). Did you the replacement? | - | Go to Step 11 | - |
| 10 | - Replace the parking assist control module.
- Perform the BCM reprogramming procedure.
Did you complete the replacement? | - | Go to Step 11 | - |
| 11 | Operate the system in order to verify the repair. Did you correct the condition? | - | Go to Step 1 | - |
MAINTENANCE AND REPAIR
ON-VEHICLE SERVICE
Front Bumper Fascia
Removal Procedure
- Disconnect the negative battery cable.
- Remove the bolts on front wheelhouse liner.
- Remove the lower fascia bolts.
- Remove the headlamps. Refer to Section 9B, Lighting Systems.
- Disconnect the fog lamp electrical connectors.
- Remove the radiator grille. Refer to Section 9R, Body Front End.
- Remove the upper fasia retainers.
- Remove the front bump fascia from the front fender by pulling the side of bumper outward.
- Remove the front bumper fasia from the vehicle.
Installation Procedure
- Install the front bumper fascia on the vehicle.
Notice : Dissimilar metals in direct contact with each other may corrode rapidly. Make sure to use the correct fasteners to prevent premature corrosion.
- Install the side of front bumper fasia on the front fender.
- Install the upper fasia retainers.
- Install the radiator grille. Refer to Section 9R, Body Front End.
- Connect the fog lamp electrical connectors.
- Install the head lamps. Refer to Section 9B, Lighting Systems.
- Install the lower fasia bolts.
Tighten
Tighten the lower fasia bolts to 10 N•m (7 lb-ft).
- Install the bolts on the front wheelhouse liner.
Tighten
Tighten the front wheelhouse liner bolts to 4 N•m (35 lb-in).
- Connect the negative battery cable.
Front Bumper Energy Absorber
Removal Procedure
- Remove the front bumper fascia. Refer to "Front Bumper Fascia" in this section.
- Remove the retaining clips on the energy absorber.
- Remove the upper and lower energy absorber on the front bumper fasia.
Installation Procedure
- Install the upper and lower energy absorber on the front bumper fasia.
- Install the retaining clips on the energy absorber.
- Install the front bumper fascia. Refer to "Front Bumper Fascia" in this section.
Front Bumper Impact Bar
Removal Procedure
- Remove the front bumper fascia. Refer to "Front Bumper Fascia" in this section.
- Remove the power steering fluid return cooling pipe bracket securing bolts near the center of impact bar, if equipped.
- Remove the bolts and the front bumper impact bar from the vehicle.
Installation Procedure
Notice : Dissimilar metals in direct contact with each other may corrode rapidly. Make sure to use the correct fasteners to prevent premature corrosion.
- Install the front impact bar with the bolts.
Tighten
Tighten the front impact bar bolts to 22 N•m (16 lb-ft).
- Install the power steering fluid return cooling pipe bracket securing bolts, if equipped.
Tighten
Tighten the return cooling pipe bracket securing bolts to 10 N•m (7 lb-ft).
- Install the front bumper fascia. Refer to "Front Bumper Fascia"in this section.
Rear Bumper Fascia
Removal Procedure
- Remove the negative battery cable.
- Disconnect the connector of rear object sensor, if equipped.
- Remove the fascia bolts on the rear wheelhouse liner.
- Remove the lower fascia retainers.
- Remove the rear combination lamps. Refer to Section 9B, Lighting Systems.
- Remove the upper fascia screws and retainers.
- Remove the rear bumper fascia from the rear fender by pulling the side of bumper outward.
- Remove the rear bumper fascia from the vehicle.
Installation Procedure
- Install the fascia on the vehicle.
- Install side of the rear bumper fascia on the rear fender.
Notice : Dissimilar metals in direct contact with each other may corrode rapidly. Make sure to use the correct fasteners to prevent premature corrosion.
- Install the upper fascia retainers and screws.
Tighten
Tighten the upper fascia screws to 2 N•m (18 lb-in).
- Install the rear combination lamps. Refer to Section 9B, Lighting Systems.
- Install the lower fascia retainers.
- Install the fascia bolts on the rear wheelhouse liner.
Tighten
Tighten the rear wheelhouse liner bolts to 4 N•m (36 lb-in).
- Connect the connector of rear object sensor, if equipped.
- Connect the negative battery cable.
Rear Bumper Impact Bar
Removal Procedure
- Remove the rear bumper fascia. Refer to "Rear Bumper Fascia" in this section.
- Remove the bolts and the impact bar.
Installation Procedure
Notice : Dissimilar metals in direct contact with each other may corrode rapidly. Make sure to use the correct fasteners to prevent premature corrosion.
- Install the impact bar with the bolts.
Tighten
Tighten the rear impact bar nuts to 22 N•m (16 lb-ft).
- Install the rear bumper fascia. Refer to "Rear Bumper Fascia" in this section.
Rear Object Alarm Assembly
Removal Procedure
- Disconnect the negative battery cable.
- Remove the driver knee bolster. Refer to Section 9G, Interior Trim.
- Disconnect the connector of alarm assembly.
- Remove the screw and rear object alarm assembly.
Installation Procedure
- Install the rear object alarm assembly with screw.
Tighten
Tighten the rear object alarm assembly screw to 4 N•m (36 lb-in).
- Connect the connector of alarm assembly.
- Install the driver knee bolster. Refer to Section 9G, Interior Trim.
- Connect the negative battery cable.
Rear Object Alarm Control Module
Removal Procedure
- Disconnect the negative battery cable.
- Remove the wheelhouse trim panel. Refer to Section 9G, Interior Trim.
- Disconnect the connector of alarm control module.
- Remove the nuts and rear object alarm control module.
Installation Procedure
- Install the rear object alarm control module with nuts.
Tighten
Tighten the rear object alarm control module nuts to 8 N•m (71 lb-in).
- Connect the connector of alarm control module.
- Install the wheelhouse trim panel. Refer to Section 9G, Interior Trim.
- Connect the negative battery cable.
Rear Object Alarm Sensor
Removal Procedure
- Disconnect the negative battery cable.
- Remove the rear bumper fascia. Refer to "Rear Bumper Fascia" in this section.
- Disconnect the connector of sensor.
- Remove the rear object alarm sensor on the rear bumper fascia by turning retainer.
Installation Procedure
- Install the rear object sensor on the rear bumper fascia by turning retainer.
- Connect the connector of sensor.
- Install the rear bumper fascia. Refer to "Rear Bumper Fascia" in this section.
- Connect the negative battery cable.
GENERAL DESCRIPTION AND SYSTEM OPERATION
Bumpers
The bumper systems are designed to sustain a collision into a fixed barrier at 8 km/h (5 mph) without damage. After absorbing the energy of a collision, the bumper systems restore themselves to their original positions. The bumpers feature an internal foam energy absorber and a polymer fascia cover.
Parking Assist System
Parking Assist System (PAS) is an electronic system designed to provide an acoustic tone informing the driver of obstacles at or near the rear of the vehicle during low speed manoeuvres such as parking. The PAS consists of four ultrasonic object sensor assemblies mounted to the rear bumper fascia, an electronic control module assembly mounted to the upside of wheelhouse panel and buzzer assembly mounted to the instrument panel. Sonar is used to detect the presence of obstacles within a defined area, by measuring the time between the transmission and reception of sound waves.
When reverse gear is selected, the sensors transmit short ultrasonic pulses and then listen for an echo reflected from an object within range. The electronic control module uses echo data from one or more sensors to calculate the distance to the obstacle.
Notice : Some sound absorbing or reflecting materials can effect the range of detection. In extreme cases, temporary non-detection of obstacles can result.
Caution : The RPA does not relieve the driver of duty of care when reversing the vehicle. Caution must always be exercised when driving at any time.
System Operation
When the ignition is on and reverse gear is selected, a tone will sound from the buzzer for a period of 0.3 seconds to indicate system readiness.
The control module provides a voltage to each sensor sequentially which is converted into an ultrasonic pulse.
Where an object is within the detection range, the ultrasonic pulse is reflected (echoed) and received by the same and/or adjacent sensors.
The echoes are amplified, processed and returned to the control module as a digital signal. The control module processes this information and informs the driver of the object by activating an intermittent acoustic tone through the buzzer.
The four sensors are mounted onto the rear bumper fascia in an arrangement that provides a slight overlap of the polar patterns. This provides the best coverage of the detection area. The maximum detection distance is 150 cm.
The detection area is divided into four warning zones. As listed in the following table, the tone-on to tone-off period shortens as the distance to the detected object decreases.
Detection Zone | LC, RC (cm) | LM, RM (cm) | Tone ON | Tone OFF |
1 | 20 ~ 30 | 20 ~ 30 | Continuous | - |
2 | 31 ~ 60 | 31 ~ 60 | 40 ms | 280 ms |
3 | - | 61 ~ 90 | 40 ms | 480 ms |
4 | - | 91 ~ 150 | 40 ms | 680 ms |
Ready Tone | - | - | 300 ms | - |
LC - Left Corner Sensor
RC - Right Corner Sensor
LM - Left Middle Sensor
RM - Right Middle Sensor
