Nissan GT-R (R35) · Service Manual DRIVER CONTROLS

DIAGNOSIS SYSTEM (IPDM E/R)

Diagnosis Description

 
 AUTO ACTIVE TEST
 
 Description

In auto active test mode, the IPDM E/R sends a drive signal to the following systems to check their operation.
  • Front wiper (LO, HI)
  • Parking lamps
  • License plate lamps
  • Side marker lamps
  • Tail lamps
  • Headlamps (LO, HI)
  • A/C compressor (magnet clutch)
  • Cooling fan (cooling fan control module)
 
 Operation Procedure

    1.Close the hood and lift the wiper arms from the windshield. (Prevent windshield damage due to wiper operation)
    NOTE：
    When auto active test is performed with hood opened, sprinkle water on windshield beforehand.
    2.Turn the ignition switch OFF.
    3.Turn the ignition switch ON, and within 20 seconds, press the driver door switch 10 times. Then turn the ignition switch OFF.
    ■ CAUTION ■
    Close passenger door.
    4.Turn the ignition switch ON within 10 seconds. After that the horn sounds once and the auto active test starts.
    5.After a series of the following operations is repeated 3 times, auto active test is completed.
NOTE：
 When auto active test mode has to be cancelled halfway through test, turn the ignition switch OFF.
■ CAUTION ■
  • If auto active test mode cannot be actuated, check door switch system. Refer to Component Function Check.
  • Do not start the engine.
 
 Inspection in Auto Active Test Mode

When auto active test mode is actuated, the following 6 steps are repeated 3 times.

Operation sequence
Inspection location
Operation
1
Front wiper
LO for 5 seconds → HI for 5 seconds
2
  • Parking lamps
  • License plate lamps
  • Side marker lamps
  • Tail lamps
10 seconds
3
Headlamps
LO ⇔ HI 5 times
4
A/C compressor (magnet clutch)
ON ⇔ OFF 5 times
5*
Cooling fan
MID for 5 seconds → HI for 5 seconds
*: Outputs duty ratio of 50% for 5 seconds → duty ratio of 100% for 5 seconds on the cooling fan control module.

 
 Concept of auto active test

NNMIA0051GB.JPG
  • IPDM E/R starts the auto active test with the door switch signals transmitted by BCM via CAN communication. 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 mode

Symptom
 		Inspection contents
 		Possible cause

Any of the following components do not operate
  • Parking lamps
  • License plate lamps
  • Side marker lamps
  • Tail lamps
  • Headlamp (HI, LO)
  • Front wiper
 		Perform auto active test.
Does the applicable system operate?
 		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 operate?
 		YES
  • A/C amp. signal input circuit
  • CAN communication signal between A/C amp. and ECM
  • CAN communication signal between 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 between ECM and IPDM E/R
NO
  • Cooling fan
  • Harness or connector between cooling fan and cooling fan control module
  • Cooling fan control module
  • Harness or connector between IPDM E/R and cooling fan control module
  • Cooling fan relay
  • Harness or connector between IPDM E/R and cooling fan relay
  • IPDM E/R

CONSULT-III Function (IPDM E/R)

 
 APPLICATION ITEM

CONSULT‐III performs the following functions via CAN communication with IPDM E/R.

Diagnosis mode
Description
Ecu Identification
Allows confirmation of IPDM E/R part number.
Self Diagnostic Result
Displays the diagnosis results judged by IPDM E/R.
Data Monitor
Displays the real-time input/output data from IPDM E/R input/output data.
Active Test
IPDM E/R can provide a drive signal to electronic components to check their operations.
CAN Diag Support Monitor
The results of transmit/receive diagnosis of CAN communication can be read.

 
 SELF DIAGNOSTIC RESULT

Refer to DTC Index.
 
 DATA MONITOR

Monitor item

Monitor Item
[Unit]
MAIN SIGNALS
Description
RAD FAN REQ
[%]
×
Displays the value of the cooling fan speed signal received from ECM via CAN communication.
AC COMP REQ
[Off/On]
×
Displays the status of the A/C compressor request signal received from ECM via CAN communication.
TAIL&CLR REQ
[Off/On]
×
Displays the status of the position light request signal received from BCM via CAN communication.
HL LO REQ
[Off/On]
×
Displays the status of the low beam request signal received from BCM via CAN communication.
HL HI REQ
[Off/On]
×
Displays the status of the high beam request signal received from BCM via CAN communication.
FR FOG REQ
[Off/On]
×
NOTE：
The item is indicated, but not monitored.
FR WIP REQ
[Stop/1LOW/Low/Hi]
×
Displays the status of the front wiper request signal received from BCM via CAN communication.
WIP AUTO STOP
[STOP P/ACT P]
×
Displays the status of the front wiper stop position signal judged by IPDM E/R.
WIP PROT
[Off/BLOCK]
×
Displays the status of the front wiper fail-safe operation judged by IPDM E/R.
IGN RLY1 ‐REQ
[Off/On]

Displays the status of the ignition switch ON signal received from BCM via CAN communication.
IGN RLY
[Off/On]
×
Displays the status of the ignition relay judged by IPDM E/R.
PUSH SW
[Off/On]

Displays the status of the push‐button ignition switch judged by IPDM E/R.
INTER/NP SW
[Off/On]

Displays the status of the shift position judged by IPDM E/R.
ST RLY CONT
[Off/On]

Displays the status of the starter relay status signal received from BCM via CAN communication.
IHBT RLY ‐REQ
[Off/On]

Displays the status of the starter control relay signal received from BCM via CAN communication.
ST/INHI RLY
[Off/ ST /INHI/UNKWN]

Displays the status of the starter relay and starter control relay judged by IPDM E/R.
DETENT SW
[Off/On]

Displays the status of the control device (detention switch) judged by IPDM E/R.
S/L RLY ‐REQ
[Off/On]

Displays the status of the steering lock relay request signal received from BCM via CAN communication.
S/L STATE
[LOCK/UNLOCK/UNKWN]

Displays the status of the steering lock judged by IPDM E/R.
DTRL REQ
[Off/On]
×
Displays the status of the daytime running light request signal received from BCM via CAN communication.
NOTE：
This item is monitored only the vehicle with daytime running light system.
OIL P SW
[Open/Close]

NOTE：
The item is indicated, but not monitored.
HOOD SW
[Off/On]

Displays the status of the hood switch judged by IPDM E/R.
HL WASHER REQ
[Off]

NOTE：
The item is indicated, but not monitored.
THFT HRN REQ
[Off/On]

Displays the status of the theft warning horn request signal received from BCM via CAN communication.
HORN CHIRP
[Off/On]

Displays the status of the horn reminder signal received from BCM via CAN communication.
CRNRNG LMP REQ
[Off]

NOTE：
The item is indicated, but not monitored.

 
 ACTIVE TEST

Test item

Test item
Operation
Description
CORNERING LAMP
Off
NOTE：
The item is indicated, but cannot be tested.
LH
RH
HORN
On
Operates horn relay 1 and horn relay 2 for 20 ms.
FRONT WIPER
Off
OFF
Lo
Operates the front wiper relay.
Hi
Operates the front wiper relay and front wiper high relay.
MOTOR FAN
1
OFF
2
Outputs 50% pulse duty signal (PWM signal) to the cooling fan control module.
3
Outputs 80% pulse duty signal (PWM signal) to the cooling fan control module.
4
Outputs 100% pulse duty signal (PWM signal) to the cooling fan control module.
HEAD LAMP WASHER
On
NOTE：
The item is indicated, but cannot be tested.
EXTERNAL LAMPS
Off
OFF
TAIL
Operates the tail lamp relay.
Lo
Operates the headlamp low relay.
Hi
Operates the headlamp low relay and ON/OFF the headlamp high relay at 1 second intervals.
Fog
NOTE：
The item is indicated, but cannot be tested.