No.5 RVM WARNING INDICATOR LIGHT DOES NOT ILLUMINATE UNDER ILLUMINATION CONDITIONS [REAR VEHICLE MONITORING SYSTEM]SM2446177
No.5 RVM WARNING INDICATOR LIGHT DOES NOT ILLUMINATE UNDER ILLUMINATION CONDITIONS [REAR VEHICLE MONITORING SYSTEM]

id0903z7994400

5

RVM warning indicator light does not illuminate under illumination conditions
DESCRIPTION
• RVM warning indicator light flashes/does not illuminate despite satisfying the conditions to illuminate RVM warning indicator light ( vehicle speed above 60 km/h {37 mph}, turn signals off, and vehicle in detection area).
POSSIBLE CAUSES
• Rear vehicle monitoring control modules false-detect that a vehicle is outside detection area when it is actually inside of it, or cannot determine that no vehicle is entering blind-spot area.
― Rear vehicle monitoring control module radar is not emitted inside of detection area (deviates from blind-spot area or adjacent lanes)
• Damage, deformity or looseness to installation bracket or vehicle frame (including moderate impacts)
• Incorrect installation of rear bumper, soiling to radar emitting/receiving area, application of stickers (including transparent types), repairs using putty application
― Rear vehicle monitoring control module radar does not receive echo-back correctly
• Rear vehicle monitoring control module malfunction
• Incorrect installation of rear bumper, soiling to radar emitting/receiving area, application of stickers (including transparent types), repairs using putty application
― Effect of non-genuine, after-market electronic device installation
Note
• The radar sensor cannot receive echo-back correctly if there is a thick moisture film (such as condensation) or excessive soiling covering the rear bumper radar emitting/receiving areas.
• Non-genuine rear bumper or paint, or installation of after-market parts may negatively affect radar echo-back ability.
• Rear vehicle monitoring control modules do not detect vehicle speed correctly (false-detects vehicle speed as being within 55 km/h {34 mph} constantly)
― Communication error between PCM and rear vehicle monitoring control module (RH)
― ABS wheel-speed sensor malfunction
• Rear vehicle monitoring control modules false-detect that vehicle is traveling on gentle curve (small curvature).
― Yaw rate signal malfunction
• Communication error between DSC HU/CM and rear vehicle monitoring control module (RH)
• Communication error between rear vehicle monitoring control modules (RH and LH)
• Yaw rate sensor (combined sensor) malfunction
• RVM warning indicator light illumination related malfunction
― RVM warning indicator light malfunction
― Rear vehicle monitoring control module (LH) malfunction (warning light illumination circuit disabled)
― Communication error between rear vehicle monitoring control modules (RH and LH) (Rear vehicle monitoring control module (LH) does not receive illumination request from rear vehicle monitoring control module (RH))
• Rear vehicle monitoring control modules false-detect that turn signals are on.
― Communication error between BCM and rear vehicle monitoring control module (RH)


Diagnostic Procedure

Warning
• When performing a road test, always verify the safety of the surrounding area before performing the test.
• To assure safety, perform a road test using two people when the vehicle is being driven. (One drives the vehicle and the other operates the M-MDS.)
• Do not perform a road test at a speed which exceeds the legal speed limit.

Step

Inspection

Action
1
VERIFY DTCs
• Retrieve DTCs from the rear vehicle monitoring system, PCM, DSC, and instrument cluster using the M-MDS. (See DTC INSPECTION [REAR VEHICLE MONITORING SYSTEM].) (See DTC INSPECTION [INSTRUMENT CLUSTER].) (See ON-BOARD DIAGNOSTIC TEST [L3 Turbo].) (See ON-BOARD DIAGNOSTIC TEST [MZR-CD 2.2].) (See ON-BOARD DIAGNOSIS.)
• Are any DTCs displayed?
Yes
Go to the applicable DTC inspection.
(See DTC TABLE [REAR VEHICLE MONITORING SYSTEM].)
(See DTC TABLE [INSTRUMENT CLUSTER].)
(See DTC TABLE [L3 Turbo].)
(See DTC TABLE [MZR-CD 2.2].)
(See ON-BOARD DIAGNOSIS.)
No
Go to the next step.
2
DETERMINE IF MALFUNCTION CAUSE IS RVM WARNING LIGHT (AMBER) OR RVM WARNING INDICATOR LIGHT ILLUMINATION CIRCUIT
• Switch the ignition to ON.
• Turn on and off the RVM warning indicator light using the following rear vehicle monitoring system active commands by the M-MDS: (See ACTIVE COMMAND MODES INSPECTION [REAR VEHICLE MONITORING SYSTEM].)
― WRN_IND_R
― WRN_IND_L
• Does the RVM warning indicator light turn on and off according to active command?
Yes
Go to Step 4.
No
Go to the next step.
3
DETERMINE IF MALFUNCTION CAUSE IS REAR VEHICLE MONITORING CONTROL MODULES OR RVM WARNING INDICATOR LIGHTS
• Inspect the following:
RVM warning indicator light (RH) related:
― RVM warning indicator light (RH)
― Wiring harness between RVM warning indicator light (RH) terminal M and rear vehicle monitoring control module (LH) terminal J
― Wiring harness between RVM warning indicator light (RH) terminal N and rear vehicle monitoring control module (LH) terminal I
RVM warning indicator light (LH) related:
― RVM warning indicator light (LH)
― Wiring harness between RVM warning indicator light (LH) terminal M and rear vehicle monitoring control module (LH) terminal A
― Wiring harness between RVM warning indicator light (LH) terminal N and rear vehicle monitoring control module (LH) terminal E
• Is any malfunction verified?
Yes
Repair or replace the malfunctioning part.
No
Replace the rear vehicle monitoring control module (LH).
(See REAR VEHICLE MONITORING CONTROL MODULE REMOVAL/INSTALLATION.)
4
DETERMINE IF MALFUNCTION CAUSE IS INPUT SIGNAL OR REAR VEHICLE MONITORING CONTROL MODULES RELATED
• Monitor the following rear vehicle monitoring system PIDs using the M-MDS: (See PID/DATA MONITOR INSPECTION [REAR VEHICLE MONITORING SYSTEM].)
― VSPD
― YAW_RATE
• Are the monitoring values normal?
Yes
Go to Step 7.
No
• If the VSPD monitoring value is not normal, go to the next step.
• If the YAW_RATE monitoring value is not normal, go to Step 7.
5
INSPECT VEHICLE SPEED SIGNAL
• Monitor the PID VSS for the PCM using the M-MDS. (See ON-BOARD DIAGNOSTIC TEST [L3 Turbo].) (See ON-BOARD DIAGNOSTIC TEST [MZR-CD 2.2].)
• Are the monitoring values normal?
Yes
Replace the rear vehicle monitoring control module (RH).
(See REAR VEHICLE MONITORING CONTROL MODULE REMOVAL/INSTALLATION.)
No
Inspect the ABS wheel speed sensor related parts.
(See FRONT ABS WHEEL-SPEED SENSOR INSPECTION.)
(See REAR ABS WHEEL-SPEED SENSOR INSPECTION [2WD].)
(See REAR ABS WHEEL-SPEED SENSOR INSPECTION [4WD].)
6
INSPECT YAW RATE SIGNAL
• Inspect the yaw rate sensor (combined sensor). (See COMBINED SENSOR INSPECTION.)
• Is the yaw rate sensor normal?
Yes
Replace the rear vehicle monitoring control module (RH).
(See REAR VEHICLE MONITORING CONTROL MODULE REMOVAL/INSTALLATION.)
No
Replace the combined sensor.
(See COMBINED SENSOR REMOVAL/INSTALLATION [MTX].)
(See COMBINED SENSOR REMOVAL/INSTALLATION [ATX].)
7
VERIFY REAR BUMPER CONDITION
• Inspect the rear bumper at the rear vehicle monitoring control modules installation areas for the following:
― Installation condition
― Application of stickers (including transparent types)
― Excessive soiling
― Repairs using putty
• Is the rear bumper condition normal?
Yes
Go to the next step.
No
Repair or replace the malfunctioning part, or replace the rear bumper.
(See REAR BUMPER REMOVAL/INSTALLATION.)
8
VERIFY INSTALLATION CONDITION OF REAR VEHICLE MONITORING CONTROL MODULES
• Remove the rear bumper. (See REAR BUMPER REMOVAL/INSTALLATION.)
• Inspect the installation condition of the rear vehicle monitoring control modules for the following:
― Looseness
― Damage or deformity to the bracket
― Distortion at vehicle installation surface
• Is the rear vehicle monitoring control modules installation condition normal?
Yes
Go to the next step.
No
Repair or replace the malfunctioning part.
9
VERIFY IF MALFUNCTION CAUSE IS AFTER-MARKET ELECTRONIC DEVICE INSTALLATION
• Disconnect the non-genuine, after-market electronic device connectors.
• Verify if the malfunction symptom recurs as stated by the customer.
• Does the malfunction recur?
Yes
Go to the next step.
No
Explain to the customer that the malfunction occurred due to the after-market electronic device installation.
10
INSPECT REAR VEHICLE MONITORING CONTROL MODULES
• Inspect the malfunctioning rear vehicle monitoring control module.
• Is the rear vehicle monitoring control module normal?
Yes
Temporary malfunction with the radar echo-back.
If the same symptom recurs repeatedly, replace the rear vehicle monitoring control module.
(See REAR VEHICLE MONITORING CONTROL MODULE REMOVAL/INSTALLATION.)
No
Replace the rear vehicle monitoring control module.
(See REAR VEHICLE MONITORING CONTROL MODULE REMOVAL/INSTALLATION.)