
WCS
DIAGNOSIS AND REPAIR WORK FLOWWCS-33
< BASIC INSPECTION >
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1. Connect CONSULT and perform self-diagnosis. Refer to MWI-24, "DTC Index" (Type A) or MWI-77, "DTC
Index" (Type B).
2. When DTC is detected, follow the instructions below:
- Record DTC and Freeze Frame Data.
Are self-diagnosis results normal?
YES >> GO TO 4.
NO >> GO TO 5.
4.NARROW DOWN MALFUNCTIONING PARTS BY SYMPTOM DIAGNOSIS
Perform symptom diagnosis and narrow down the malfunctioning parts.
>> GO TO 5.
5.REPAIR OR REPLACE MALFUNCTIONING PARTS
Repair or replace malfunctioning parts.
NOTE:
If DTC is displayed, erase DTC after repairing or replacing malfunctioning parts.
>> GO TO 6.
6.FINAL CHECK
Check that the warning buzzer in the combination meter operates normally.
Does it operate normally?
YES >> Inspection End.
NO >> GO TO 1.
Revision: August 2015 2016 Versa Note
cardiagn.com

DIAGNOSIS SYSTEM (BCM) (WITH INTELLIGENT KEY SYSTEM)
WW-13
< SYSTEM DESCRIPTION >
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DIAGNOSIS SYSTEM (BCM) (WIT H INTELLIGENT KEY SYSTEM)
COMMON ITEM
COMMON ITEM : CONSULT Function (BCM - COMMON ITEM)INFOID:0000000012542535
APPLICATION ITEM
CONSULT performs the following functions via CAN communication with BCM.
SYSTEM APPLICATION
BCM can perform the following functions.
Direct Diagnostic Mode Description
ECU Identification The BCM part number is displayed.
Self Diagnostic Result The BCM self diagnostic results are displayed.
Data Monitor The BCM input/output data is displayed in real time.
Active Test The BCM activates outputs to test components.
Work support The settings for BCM functions can be changed.
Configuration • The vehicle specification can be read and saved.
• The vehicle specification can be written when replacing BCM.
CAN DIAG SUPPORT MNTR The result of transmit/receive diagnosis of CAN communication is displayed.
System Sub System Direct Diagnostic Mode
ECU Identification
Self Diagnostic Result
Data Monitor
Active Test
Work support
Configuration
CAN DIAG SUPPORT MNTR
Door lock
DOOR LOCK ×××
Rear window defogger REAR DEFOGGER ××
Warning chime BUZZER ××
Interior room lamp timer INT LAMP ×××
Exterior lamp HEAD LAMP ×××
Wiper and washer WIPER ×××
Turn signal and hazard warning lamps FLASHER ×××
Air conditioner AIR CONDITIONER ×
Intelligent Key system INTELLIGENT KEY ××××
Combination switch COMB SW ×
BCM BCM× × ×××
Immobilizer IMMU ××××
Interior room lamp battery saver BATTERY SAVER ×××
Vehicle security system THEFT ALM ××
RAP system RETAINED PWR ×
Signal buffer system SIGNAL BUFFER ×
TPMS AIR PRESSURE MONITOR ××××
Panic alarm system PANIC ALARM ×
Revision: August 2015 2016 Versa Note
cardiagn.com

DIAGNOSIS SYSTEM (BCM) (WITHOUT INTELLIGENT KEY SYSTEM)WW-15
< SYSTEM DESCRIPTION >
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DIAGNOSIS SYSTEM (BCM) (WITHO UT INTELLIGENT KEY SYSTEM)
COMMON ITEM
COMMON ITEM : CONSULT Function (BCM - COMMON ITEM)INFOID:0000000012542537
APPLICATION ITEM
CONSULT performs the following functions via CAN communication with BCM.
SYSTEM APPLICATION
BCM can perform the following functions.
Direct Diagnostic Mode Description
ECU Identification The BCM part number is displayed.
Self Diagnostic Result The BCM self diagnostic results are displayed.
Data Monitor The BCM input/output data is displayed in real time.
Active Test The BCM activates outputs to test components.
Work support The settings for BCM functions can be changed.
Configuration • The vehicle specification can be read and saved.
• The vehicle specification can be written when replacing BCM.
CAN DIAG SUPPORT MNTR The result of transmit/receive diagnosis of CAN communication is displayed.
System Sub System Direct Diagnostic Mode
ECU Identification
Self Diagnostic Result
Data Monitor
Active Test
Work support
Configuration
CAN DIAG SUPPORT MNTR
Door lock
DOOR LOCK ×××
Rear window defogger REAR DEFOGGER ××
Warning chime BUZZER ××
Interior room lamp timer INT LAMP ×××
Remote keyless entry system MULTI REMOTE ENT ×××
Exterior lamp HEAD LAMP ×××
Wiper and washer WIPER ×××
Turn signal and hazard warning lamps FLASHER ××
Air conditioner AIR CONDITIONER ×
Combination switch COMB SW ×
BCM BCM× × ×××
Immobilizer IMMU ×××
Interior room lamp battery saver BATTERY SAVER ×××
Vehicle security system THEFT ALM ××
RAP system RETAINED PWR ××
Signal buffer system SIGNAL BUFFER ×
TPMS AIR PRESSURE MONITOR ××××
Panic alarm system PANIC ALARM ×
Revision: August 2015 2016 Versa Note
cardiagn.com

WW-18
< SYSTEM DESCRIPTION >
DIAGNOSIS SYSTEM (IPDM E/R)
Concept of Auto Active Test
• IPDM E/R starts the auto active test with the door switch signals transmitted by BCM via CAN communica-
tion. Therefore, the CAN communication line between IPDM E/R and BCM is considered normal if the auto
active test starts successfully.
• The auto active test facilitates troubleshooting if any systems controlled by IPDM E/R cannot be operated.
Diagnosis Chart in Auto Active Test
CONSULT Function (IPDM E/R)INFOID:0000000012542541
APPLICATION ITEM
CONSULT performs the following functions via CAN communication with IPDM E/R.
AWMIA1737GB
Symptom Inspection contentsPossible cause
Any of the following components do not operate:
•Parking lamp
• Side marker lamp
• License plate lamp
•Tail lamp
• Front fog lamp
• Headlamp (HI, LO)
• Front wiper (HI, LO) Perform auto active test.
Does the applicable system op-
erate?YES BCM signal input circuit
NO • Lamp or motor
• Lamp or motor ground circuit
• Harness or connector between
IPDM E/R and applicable system
• IPDM E/R
A/C compressor does not operate Perform auto active test.
Does the magnet clutch oper-
ate?YES
• BCM signal input circuit
• CAN communication signal be-
tween BCM and ECM
• CAN communication signal be-
tween ECM and IPDM E/R
NO • Magnet clutch
• Harness or connector between
IPDM E/R and magnet clutch
• IPDM E/R
Cooling fan does not operate Perform auto active test.
Does the cooling fan operate?YES
• ECM signal input circuit
• CAN communication signal be-
tween ECM and IPDM E/R
NO • Cooling fan motor
• Harness or connector between
IPDM E/R and cooling fan motor
• IPDM E/R
Direct Diagnostic Mode Description
ECU Identification The IPDM E/R part number is displayed.
Self Diagnostic Result The IPDM E/R self diagnostic results are displayed.
Revision: August 2015 2016 Versa Note
cardiagn.com

DIAGNOSIS SYSTEM (IPDM E/R)WW-19
< SYSTEM DESCRIPTION >
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ECU IDENTIFICATION
The IPDM E/R part number is displayed.
SELF DIAGNOSTIC RESULT
Refer to PCS-20, "DTCIndex".
DATA MONITOR
ACTIVE TEST
Data Monitor The IPDM E/R input/output data is displayed in real time.
Active Test The IPDM E/R activates outputs to test components.
CAN Diag Support Mntr The result of transmit/receive diagnosis of CAN communication is displayed.
Direct Diagnostic Mode
Description
Monitor Item [Unit]Main
Signals Description
MOTOR FAN REQ [1/2/3/4] ×Indicates cooling fan speed signal received from ECM on CAN communication
line
AC COMP REQ [On/Off] ×Indicates A/C compressor request signal received from ECM on CAN commu-
nication line
TAIL&CLR REQ [On/Off] ×Indicates position light request signal
received from BCM on CAN communica-
tion line
HL LO REQ [On/Off] ×Indicates low beam request signal received from BCM on CAN communication
line
HL HI REQ [On/Off] ×Indicates high beam request signal received from BCM on CAN communication
line
FR FOG REQ [On/Off] ×Indicates front fog light request signal received from BCM on CAN communica-
tion line
FR WIP REQ [Stop/1LOW/Low/Hi] ×Indicates front wiper request signal received from BCM on CAN communication
line
WIP AUTO STOP [STOP P/ACT P] ×Indicates condition of front wiper auto stop signal
WIP PROT [Off/BLOCK] ×Indicates condition of front wiper fail-safe operation
IGN RLY1 -REQ [On/Off] Indicates ignition switch ON signal received from BCM on CAN communication
line
IGN RLY [On/Off] ×Indicates condition of ignition relay
PUSH SW [On/Off] Indicates condition of push-button ignition switch
INTER/NP SW [On/Off] Indicates condition of CVT shift position
ST RLY CONT [On/Off] Indicates starter relay status signal received from BCM on CAN communication
line
IHBT RLY -REQ [On/Off] Indicates starter control relay signal received from BCM on CAN communication
line
ST/INHI RLY [Off/ ST /INHI] Indicates condition of starter relay and starter control relay
DETENT SW [On/Off] Indicates condition of CVT shift selector (park position switch)
DTRL REQ [Off] Indicates daytime running light request signal received from BCM on CAN com-
munication line
THFT HRN REQ [On/Off] Indicates theft warning horn request signal received from BCM on CAN commu-
nication line
HORN CHIRP [On/Off] Indicates horn reminder signal received from BCM on CAN communication line
Test item Description
HORN This test is able to check horn operation [On].
FRONT WIPER This test is able to check wiper motor operation [Hi/Lo/Off].
Revision: August 2015 2016 Versa Note
cardiagn.com

NORMAL OPERATING CONDITIONWW-55
< SYMPTOM DIAGNOSIS >
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NORMAL OPERATING CONDITION
DescriptionINFOID:0000000012433232
FRONT WIPER PROTECTION FUNCTION
IPDM E/R detects front wiper stop positi on by a front wiper stop position signal.
When a front wiper stop position signal is in the conditions listed below, IPDM E/R stops power supply to wiper
after repeating a front wiper 10 seconds activation and 20 seconds stop.
NOTE:
This operation status can be confirmed on the IPDM E/ R “Data Monitor” that displays “BLOCK” for the item
“WIP PROT” while the wiper is stopped.
REAR WIPER MOTOR PROTECTION FUNCTION
• BCM may stop rear wiper to protect the rear wiper motor when the rear wiper is stopped for 5 seconds or
more due to a snowfall.
• Rear wiper operates normally one minute after the obstacles are removed with rear wiper OFF.
Ignition switch Front wiper switch Front wiper stop position signal
ON OFF The front wiper stop position signal (stop position) cannot be input for 10 seconds.
ON The front wiper stop position signal does not change for 10 seconds.
Revision: August 2015 2016 Versa Note
cardiagn.com