COOLING FAN CONTROL
IPDM E/R controls cooling fans according to the status of the cooling fan speed request signal received from ECM via CAN communication.
GENERATOR CONTROL
IPDM E/R outputs power generation command signal (PWM signal) to the generator according to the status of the power generation command value signal received from ECM via CAN communication. Refer to " SYSTEM DESCRIPTION ".
Scheme 122
OUTLINE
- IPDM E/R incorporates a power consumption control function that reduces the power consumption according to the vehicle status.
- IPDM E/R changes its status (control mode) with the sleep wake up signal received from BCM via CAN communication.
Normal mode (wake-up)
- CAN communication is normally performed with other control units.
- Individual unit control by IPDM E/R is normally performed.
Low power consumption mode (sleep)
- Low power consumption control is active.
- CAN transmission is stopped.
SLEEP MODE ACTIVATION
- IPDM E/R judges that the sleep-ready conditions are fulfilled when the ignition switch is OFF and none of the conditions below are present. Then it transmits a sleep-ready signal (ready) to BCM via CAN communication. Front wiper fail-safe operation Outputting signals to actuators Switches or relays operating Auto active test is starting Emergency OFF Output requests are being received from control units via CAN communication.
- IPDM E/R stops CAN communication and enters the low power consumption mode when it receives a sleep wake up signal (sleep) from BCM and the sleep-ready conditions are fulfilled.
DATA MONITOR
| Monitor Item [Unit] | Main Signals | Description |
|---|---|---|
| MOTOR FAN REQ [1/2/3/4] | X | Indicates cooling fan speed signal received from ECM on CAN communication line |
| AC COMP REQ [On/Off] | X | Indicates A/C compressor request signal received from ECM on CAN communication line |
| TAIL & CLR REQ [On/Off] | X | Indicates position light request signal received from BCM on CAN communication line |
| HL LO REQ [On/Off] | X | Indicates low beam request signal received from BCM on CAN communication line |
| HL HI REQ [On/Off] | X | Indicates high beam request signal received from BCM on CAN communication line |
| FR FOG REQ [On/Off] | X | Indicates front fog light request signal received from BCM on CAN communication line |
| FR WIP REQ [Stop/1LOW/Low/Hi] | X | Indicates front wiper request signal received from BCM on CAN communication line |
| WIP AUTO STOP [STOP P/ACT P] | X | Indicates condition of front wiper auto stop signal |
| WIP PROT [Off/BLOCK] | X | 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] | X | 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 light request signal received from BCM on CAN communication line | |
| OIL P SW [Open/Close] | Indicates condition of oil pressure switch | |
| THFT HRN REQ [On/Off] | Indicates theft warning horn request signal received from BCM on CAN communication line | |
| HORN CHIRP [On/Off] | Indicates horn reminder signal received from BCM on CAN communication line |
DATA MONITOR INFORMATION DESCRIPTION CHART
CAN DIAG SUPPORT MNTR
Refer to " CAN DIAGNOSTIC SUPPORT MONITOR ".
PHYSICAL VALUES
ECU DIAGNOSIS INFORMATION Terminal No. (Wire color) Description Condition Value (Approx.) + - Signal name Input/Output 1 (R) Ground Battery power supply Input Ignition switch OFF Battery voltage 2 (L) Ground Battery power supply Input Ignition switch OFF Battery voltage 4 (LG) Ground Front wiper LO Output Ignition switch ON Front wiper switch OFF 0 V Front wiper switch LO Battery voltage 5 (Y) Ground Front wiper HI Output Ignition switch ON Front wiper switch OFF 0 V Front wiper switch HI Battery voltage 6 (L) Ground Daytime light relay power supply (Canada models only) Output Ignition switch OFF Battery voltage 7 (GR) Ground Tail, license plate lamps & interior lamps Output Ignition switch ON Lighting switch OFF 0 V Lighting switch 1ST Battery voltage 10 (BR) Ground ECM relay power supply Output Ignition switch OFF (For a few seconds after turning ignition switch OFF) 0 V Ignition switch ON Ignition switch OFF (More than a few seconds after turning ignition switch OFF) Battery voltage 12 (B) Ground Ground - Ignition switch ON 0 V 13 (SB) Ground Fuel pump power supply Output Approximately 1 second or more after turning the ignition switch ON 0 V Approximately 1 second after turning the ignition switch ON Engine running Battery voltage 15 (W) Ground Ignition relay-1 power supply Output Ignition switch OFF 0 V Ignition switch ON Battery voltage 16 (R) Ground Front wiper auto stop Input Ignition switch ON Front wiper stop position 0 V Any position other than front wiper stop position Battery voltage 19 (Y) Ground Ignition relay-1 power supply Output Ignition switch OFF 0 V Ignition switch ON Battery voltage 20 (L) Ground Ambient sensor ground - Ignition switch ON 0V 21 (LG) Ground Ambient sensor - Ignition switch ON 5V 22 (SB) Ground Refrigerant pressure sensor ground - Ignition switch ON 0V 23 (GR) Ground Refrigerant pressure sensor - Ignition switch ON (READY) Both A/C switch and blower motor switch ON (electric compressor operates) 1.0 - 4.0V 24 (G) Ground Refrigerant pressure sensor power supply - Ignition switch ON 5V 25 (GR) Ground Ignition relay-1 power supply Output Ignition switch OFF 0 V Ignition switch ON Battery voltage 27 (W) Ground Ignition relay monitor Input Ignition switch OFF or ACC Battery voltage Ignition switch ON 0 V 28 (SB) Ground Push-button ignition switch Input Press the push-button ignition switch 0 V Release the push-button ignition switch Battery voltage 30 (BR) Ground Starter relay control Input CVT selector lever in any position other than P or N (ignition switch ON) 0 V CVT selector lever P or N (ignition switch ON) Battery voltage 34 (O) Ground Cooling fan relay-3 control Input Ignition switch OFF or ACC 0 V Ignition switch ON 0.7 V 35 (P) Ground Cooling fan motor control Output Ignition switch OFF or ACC 0 V Ignition switch ON 0.7 V 36 (G) Ground Battery power supply Input Ignition switch OFF Battery voltage 38 (GR) Ground Cooling fan motor control Output Ignition switch OFF or ACC 0 V Ignition switch ON 0.7 V 39 (P) - CAN - L Input/Output - - 40 (L) - CAN - H Input/Output - - 41 (B) Ground Ground - Ignition switch ON 0 V 42 (SB) Ground Cooling fan relay-2 control Input Ignition switch OFF or ACC 0 V Ignition switch ON 0.7 V 43 (Y) Ground CVT shift selector (Detention switch) Input Ignition switch ON Press the CVT selector button (CVT selector lever P) Battery voltage CVT selector lever in any position other than P Release the CVT selector button (CVT selector lever P) 0 V 44 (W) Ground Horn relay control Input The horn is deactivated Battery voltage The horn is activated 0 V 45 (GR) Ground Anti theft horn relay control Input The horn is deactivated Battery voltage The horn is activated 0 V 46 (BR) Ground Starter relay control Input CVT selector lever in any position other than P or N (ignition switch ON) 0 V CVT selector lever P or N (ignition switch ON) Battery voltage 48 (W) Ground A/C relay power supply Output Engine running A/C switch OFF 0 V A/C switch ON (A/C compressor is operating) Battery voltage 49 (R/G) Ground ECM relay power supply Output Ignition switch OFF (For a few seconds after turning ignition switch OFF) 0 V Ignition switch ON Ignition switch OFF (More than a few seconds after turning ignition switch OFF) Battery voltage 51 (LG) Ground Ignition relay power supply Output Ignition switch OFF 0 V Ignition switch ON Battery voltage 52 (Y/G) Ground Ignition relay power supply Output Ignition switch OFF 0 V Ignition switch ON Battery voltage 53 (R/W) Ground ECM relay power supply Output Ignition switch OFF (For a few seconds after turning ignition switch OFF) 0 V Ignition switch ON Ignition switch OFF (More than a few seconds after turning ignition switch OFF) Battery voltage 54 (G/W) Ground Throttle control motor relay power supply Output Ignition switch OFF (For a few seconds after turning ignition switch OFF) 0 V Ignition switch ON Ignition switch OFF (More than a few seconds after turning ignition switch OFF) Battery voltage 55 (W/L) Ground ECM power supply Output Ignition switch OFF Battery voltage 56 (R/Y) Ground Ignition relay power supply Output Ignition switch OFF 0 V Ignition switch ON Battery voltage 57 (O) Ground Ignition relay power supply Output Ignition switch OFF 0 V Ignition switch ON Battery voltage 58 (Y) Ground Ignition relay power supply Output Ignition switch OFF 0 V Ignition switch ON Battery voltage 69 (W/B) Ground ECM relay control Output Ignition switch OFF (For a few seconds after turning ignition switch OFF) Battery voltage Ignition switch ON Ignition switch OFF (More than a few seconds after turning ignition switch OFF) 0 - 1.5 V 70 (O) Ground Throttle control motor relay control Output Ignition switch ON --> OFF 0 -1.0 V ↓ Battery voltage ↓ 0 V Ignition switch ON 0 - 1.0 V 72 (R/B) Ground Transmission range switch signal Input Ignition switch ON CVT selector lever in P or N position Battery voltage CVT selector lever in any position other than P or N position 0 V 75 (LG) Ground Oil pressure switch Input Ignition switch ON Engine stopped 0 V Engine running Battery voltage 76 (SB) Ground Power generation command signal Output Ignition switch ON 6.3 V 40% is set on "Active test", "ALTERNATOR DUTY" of "ENGINE" 3.8 V 80% is set on "Active test", "ALTERNATOR DUTY" of "ENGINE" 1.4 V 77 (GR) Ground Fuel pump relay control Output Approximately 1 second after turning the ignition switch ON Engine running 0 - 1.0 V Approximately 1 second or more after turning the ignition switch ON Battery voltage 80 (B) Ground Starter motor Output At engine cranking Battery voltage 83 (R/Y) Ground Headlamp LO (RH) Output Ignition switch ON Lighting switch OFF 0 V Lighting switch 2ND Battery voltage 84 (L) Ground Headlamp LO (LH) Output Ignition switch ON Lighting switch OFF 0 V Lighting switch 2ND Battery voltage 86 (W/R) Ground Front fog lamp (RH) Output Lighting switch 2ND Front fog lamp switch ON Daytime running light activated (Only for Canada models) Battery voltage Front fog lamp switch OFF 0 V 87 (L/Y) Ground Front fog lamp (LH) Output Lighting switch 2ND Front fog lamp switch ON Daytime running light activated (Only for Canada models) Battery voltage Front fog lamp switch OFF 0 V 88 (R/W) Ground Washer pump power supply Output Ignition switch ON Battery voltage 89 (L/W) Ground Headlamp HI (RH) Output Ignition switch ON Lighting switch HI Lighting switch PASS Battery voltage Lighting switch OFF 0 V 90 (G) Ground Headlamp HI (LH) Output Ignition switch ON Lighting switch HI Lighting switch PASS Battery voltage Lighting switch OFF 0 V 91 (LG/R) Ground Parking lamp (RH) Output Ignition switch ON Lighting switch 1ST Battery voltage Lighting switch OFF 0 V 92 (LG/B) Ground Parking lamp (LH) Output Ignition switch ON Lighting switch 1ST Battery voltage Lighting switch OFF 0 V 99 (BR/W) Ground Ambient sensor ground - Ignition switch ON 0V 100 (SB) Ground Ambient sensor - Ignition switch ON 5V 101 (W) Ground Refrigerant pressure sensor ground - Ignition switch ON 0V 102 (R) Ground Refrigerant pressure sensor - Ignition switch ON (READY) Both A/C switch and blower motor switch ON (electric compressor operates) 1.0 - 4.0V 103 (P) Ground Refrigerant pressure sensor power supply - Ignition switch ON 5V 105 (V) Ground Daytime light relay control (Only for Canada models) Output Ignition switch ON Daytime light system active Battery voltage Ignition switch ON Daytime light system inactive 0 V
Scheme 123
Scheme 124
Scheme 125
CAN COMMUNICATION CONTROL
When CAN communication with ECM and BCM is impossible, IPDM E/R performs fail-safe control. After CAN communication recovers normally, it also returns to normal control.
If No CAN Communication Is Available With ECM
| Control part | Fail-safe in operation |
|---|---|
| Cooling fan | Signals cooling fans ON when the ignition switch is turned ON Signals cooling fans OFF when the ignition switch is turned OFF |
| A/C compressor | A/C relay OFF |
| Generator | Outputs the power generation command signal (PWM signal) 0% |
FAIL SAFE REFERENCE
If No CAN Communication Is Available With BCM
| Control part | Fail-safe in operation |
|---|---|
| Headlamp | Turns ON the headlamp low relay when the ignition switch is turned ON Turns OFF the headlamp low relay when the ignition switch is turned OFF Headlamp high relay OFF |
| Parking lamps License plate lamps Illumination Tail lamps | Turns ON the tail lamp relay when the ignition switch is turned ON Turns OFF the tail lamp relay when the ignition switch is turned OFF |
| Front wiper | The status just before activation of fail-safe control is maintained until the ignition switch is turned OFF while the front wiper is operating at LO or HI speed. The wiper is operated at LO speed until the ignition switch is turned OFF if the fail-safe control is activated while the front wiper is set in the INT mode and the front wiper motor is operating. |
| Front fog lamps (if equipped) | Front fog lamp relay OFF |
| Horn | Horn OFF |
| Ignition relay | The status just before activation of fail-safe is maintained. |
| Starter motor | Starter control relay OFF |
FAIL SAFE REFERENCE CHART
IGNITION RELAY MALFUNCTION DETECTION FUNCTION
- IPDM E/R monitors the voltage at the contact circuit and excitation coil circuit of the ignition relay inside it.
- IPDM E/R judges the ignition relay error if the voltage differs between the contact circuit and the excitation coil circuit.
- If the ignition relay cannot turn OFF due to contact seizure, it activates the tail lamp relay for 10 minutes to alert the user to the ignition relay malfunction when the ignition switch is turned OFF. IGNITION RELAY MALFUNCTION DETECTION FUNCTION DTC Ignition switch Ignition relay Tail lamp relay - ON ON - - OFF OFF - B2098: IGN RELAY ON OFF ON ON (10 minutes) B2099: IGN RELAY OFF ON OFF - NOTE: The tail lamp turns OFF when the ignition switch is turned ON.
FRONT WIPER CONTROL
IPDM E/R detects front wiper stop position by a front wiper auto stop signal.
When a front wiper auto stop signal is in the conditions listed below, IPDM E/R stops power supply to wiper after repeating a front wiper 10 second activation and 20 second stop five times.
| Ignition switch | Front wiper switch | Auto stop signal |
|---|---|---|
| ON | OFF | Front wiper stop position signal cannot be input 10 seconds. |
| ON | The signal does not change for 10 seconds. |
FRONT WIPER CONTROL SWITCH REFERENCE CHART
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.
STARTER MOTOR PROTECTION FUNCTION
IPDM E/R turns OFF the starter control relay to protect the starter motor when the starter control relay remains active for 90 seconds.
Precaution for Supplemental Restraint System (SRS) "AIR BAG" and "SEAT BELT PRE-TENSIONER"
The Supplemental Restraint System such as "AIR BAG" and "SEAT BELT PRE-TENSIONER", used along with a front seat belt, helps to reduce the risk or severity of injury to the driver and front passenger for certain types of collision. This system includes seat belt switch inputs and dual stage front air bag modules. The SRS system uses the seat belt switches to determine the front air bag deployment, and may only deploy one front air bag, depending on the severity of a collision and whether the front occupants are belted or unbelted.
Information necessary to service the system safely is included in the SRS AIRBAG -- MAXIMA " and SEAT BELTS -- MAXIMA " articles.
| WARNING | To avoid rendering the SRS inoperative, which could increase the risk of personal injury or death in the event of a collision which would result in air bag inflation, all maintenance must be performed by an authorized NISSAN/INFINITI dealer. Improper maintenance, including incorrect removal and installation of the SRS, can lead to personal injury caused by unintentional activation of the system. For removal of Spiral Cable and Air Bag Module, see the SRS AIRBAG article. Do not use electrical test equipment on any circuit related to the SRS unless instructed to in this Service Information. SRS wiring harnesses can be identified by yellow and/or orange harnesses or harness connectors. |
PRECAUTIONS WHEN USING POWER TOOLS (AIR OR ELECTRIC) AND HAMMERS
| WARNING | When working near the Airbag Diagnosis Sensor Unit or other Airbag System sensors with the Ignition ON or engine running, DO NOT use air or electric power tools or strike near the sensor(s) with a hammer. Heavy vibration could activate the sensor(s) and deploy the air bag(s), possibly causing serious injury. When using air or electric power tools or hammers, always switch the Ignition OFF, disconnect the battery, and wait at least 3 minutes before performing any service. |
Precaution for Procedure without Cowl Top Cover
When performing the procedure after removing cowl top cover, cover the lower end of windshield with urethane, etc.
Scheme 126
DETAILED FLOW
- GET INFORMATION FOR SYMPTOM Get the detailed information from the customer about the symptom (the condition and the environment when the incident/malfunction occurred). GO TO 2
- CHECK DTC Check DTC for BCM and IPDM E/R. Perform the following procedure if DTC is displayed. Record DTC and freeze frame data (Print them out with CONSULT-III.) Erase DTC. Study the relationship between the cause detected by DTC and the symptom described by the customer. Check related service bulletins for information. Is any symptom described and any DTC detected? Symptom is described, DTC is displayed >> GO TO 3 Symptom is described, DTC is not displayed >> GO TO 4 Symptom is not described, DTC is displayed >> GO TO 5
- CONFIRM THE SYMPTOM Confirm the symptom described by the customer. Connect CONSULT-III to the vehicle in "DATA MONITOR" mode and check real time diagnosis results. Verify relation ship between the symptom and the condition when the symptom is detected. GO TO 5
- CONFIRM THE SYMPTOM Confirm the symptom described by the customer. Connect CONSULT-III to the vehicle in "DATA MONITOR" mode and check real time diagnosis results. Verify relation between the symptom and the condition when the symptom is detected. GO TO 6
- PERFORM DTC CONFIRMATION PROCEDURE Perform DTC Confirmation Procedure for the displayed DTC, and then check that DTC is detected again. At this time, always connect CONSULT-III to the vehicle, and check diagnostic results in real time. If two or more BCM DTCs are detected, refer to " «DTC INSPECTION PRIORITY CHART»(ref-388055-S13892607032011022800000) " and determine trouble diagnosis order. NOTE: Freeze frame data is useful if the DTC is not detected. Perform Component Function Check if DTC Confirmation Procedure is not included in Service Information. This simplified check procedure is an effective alternative though DTC cannot be detected during this check. If the result of Component Function Check is NG, it is the same as the detection of DTC by DTC Confirmation Procedure. Is DTC detected? YES >> GO TO 7 NO >> Refer to " «INTERMITTENT INCIDENT»(ref-388039-S29430263232011022800000) ".
- DETECT MALFUNCTIONING SYSTEM BY SYMPTOM DIAGNOSIS Detect malfunctioning system according to symptom diagnosis based on the confirmed symptom in step 4 , and determine the trouble diagnosis order based on possible causes and symptom. GO TO 7
- DETECT MALFUNCTIONING PART BY DIAGNOSTIC PROCEDURE Inspect according to Diagnostic Procedure of the system. NOTE: The Diagnostic Procedure described based on open circuit inspection. A short circuit inspection is also required for the circuit check in the Diagnostic Procedure. Is malfunctioning part detected? YES >> GO TO 8 NO >> Check voltage of related BCM and IPDM E/R terminals using CONSULT-III.
- REPAIR OR REPLACE THE MALFUNCTIONING PART Repair or replace the malfunctioning part. Reconnect parts or connectors disconnected during Diagnostic Procedure again after repair and replacement. Check DTC. If DTC is displayed, erase it. GO TO 9
- FINAL CHECK When DTC was detected in step 2 , perform DTC Confirmation Procedure or Component Function Check again, and then check that the malfunction have been fully repaired. When symptom was described from the customer, refer to confirmed symptom in step 3 or 4 and check that the symptom is not detected. Is the inspection result normal? YES >> Inspection End. NO (DTC is detected) >> GO TO 7 NO (Symptom remains) >> GO TO 6
Pre-Inspection for Multi-System Diagnostic
The engine start function, door lock function, power distribution system and NATS-IVIS/NVIS are closely related to each other. Narrow down the system in question by performing this inspection to identify which system is malfunctioning. For example, the vehicle security system can operate only when the door lock and power distribution system are operating normally.
- CHECK DOOR LOCK OPERATION Check the door lock for normal operation with the Intelligent Key and door request switch. Successful door lock operation with the Intelligent Key and request switch indicates that the remote keyless entry receiver and inside key antenna required for engine start are functioning normally. Can the door be locked with the Intelligent Key and door request switch? YES >> GO TO 2. NO >> Refer to " «SYMPTOM TABLE»(ref-388085-S12436871592011022800000) ".
- CHECK ENGINE STARTING Check that the engine starts when the Intelligent Key is inserted into the key slot. Does the engine start? YES >> GO TO 3. NO >> Refer to " «SYMPTOM TABLE»(ref-388060-S19171277562011022800000) ".
- CHECK POWER SUPPLY INDICATOR SWITCHING Press push-button ignition switch and check that the position indicator switches from LOCK, through ACC to ON. Is each position indicator illuminating? YES >> GO TO 4. NO >> Refer to " «COMPONENT FUNCTION CHECK»(ref-388055-S34386164732011022800000) ".
- CHECK VEHICLE SECURITY SYSTEM Check the vehicle security system for normal operation. Refer to " «VEHICLE SECURITY OPERATION CHECK»(ref-388060-S14838898072011022800000) ". Are the inspection results normal? YES >> Inspection End. NO >> Repair vehicle security system as necessary.
INPUT/OUTPUT SIGNAL CHART
| Switch | Input Signal to BCM | BCM system | Actuator |
|---|---|---|---|
| Push-button ignition switch | Push switch | Power distribution system | Ignition relay (IPDM E/R) Ignition relay (fuse block) ACC relay Front blower motor relay |
| CVT shift selector | P range | ||
| Transmission range switch | N, P range | ||
| Stop lamp switch | Brake ON/OFF |
INPUT/OUTPUT SIGNAL CHART
WORK SUPPORT
| Support Item | Setting | Description |
|---|---|---|
| RESET SETTING VALUE | Reset | Returns BCM to initial value in factory shipment. |
| Cancel | Cancels the reset function. |
BCM CONSULT-III FUNCTION DESCRIPTION CHART
CONFIGURATION
Refer to " CONFIGURATION (BCM) : DESCRIPTION ".
Refer to " CAN DIAGNOSTIC SUPPORT MONITOR ".
BCM : Special Repair Requirement
- REQUIRED WORK WHEN REPLACING BCM Initialize control unit. Refer to " «CONFIGURATION (BCM) : SPECIAL REPAIR REQUIREMENT»(ref-388072-S30068493832011022800000) ". Work End.
Component Function Check
- CHECK FUNCTION With CONSULT-III Check push-button ignition switch ("LOCK INDICATOR", "ACC INDICATOR" and "IGNITION ON IND") in Active Test Mode with CONSULT-III. PUSH-BUTTON IGNITION SWITCH POSITION INDICATOR DESCRIPTION Test item Description LOCK INDICATOR ACC INDICATOR IGNITION ON IND ON Position indicator : Illuminate OFF : Not illuminate Is the inspection result normal? YES >> Inspection End. NO >> Refer to " «DIAGNOSIS PROCEDURE»(ref-388055-S40026145862011022800000) ".
SIGNAL REFERENCE CHART Terminal No. (Wire color) Description Condition Value (Approx.) (+) (-) Signal name Input/Output 1 (W/B) Ground Battery power supply Input Ignition switch OFF Battery voltage 2 (R/Y) Ground Battery power supply output Output Ignition switch OFF Battery voltage 3 (L/W) Ground Ignition power supply output Output Ignition switch ON Battery voltage 4 (P/W) Ground Interior room lamp power supply Output After passing the interior room lamp battery saver operation time 0V Any other time after passing the interior room lamp battery saver operation time Battery voltage 5 (G) Ground Front door RH UNLOCK Output Front door RH UNLOCK (actuator is activated) Battery voltage Other than UNLOCK (actuator is not activated) 0V 7 (R/W) Ground Step lamp Output Step lamp ON 0V OFF Battery voltage 8 (V) Ground All doors LOCK Output All doors LOCK (actuator is activated) Battery voltage Other than LOCK (actuator is not activated) 0V 9 (L) Ground Front door LH UNLOCK Output Front door LH UNLOCK (actuator is activated) Battery voltage Other than UNLOCK (actuator is not activated) 0V 10 (G) Ground Rear door RH and rear door LH UNLOCK Output Rear door RH and rear door LH UNLOCK (actuator is activated) Battery voltage Other than UNLOCK (actuator is not activated) 0V 11 (Y/R) Ground Battery power supply Input Ignition switch OFF Battery voltage 13 (B) Ground Ground - Ignition switch ON 0V 14 (GR/W) Ground Engine switch (push switch) illumination ground Input Tail lamp OFF 0V ON NOTE: When the illumination brightening/dimming level is in the neutral position 15 (Y/L) Ground ACC indicator lamp Output Ignition switch OFF Battery voltage ACC or ON 0V 17 (G/B) Ground Turn signal (RH) Output Ignition switch ON Turn signal switch OFF 0V Turn signal switch RH 6.5 V 18 (G/Y) Ground Turn signal (LH) Output Ignition switch ON Turn signal switch OFF 0V Turn signal switch LH 6.5 V 19 (Y) Ground Room lamp timer control Output Interior room lamp OFF Battery voltage ON 0V 21 (P/B) Ground Optical sensor signal Input Ignition switch ON When outside of the vehicle is bright Close to 5V When outside of the vehicle is dark Close to 0V 24 (R/W) Ground Stop lamp switch 1 Input - Battery voltage 26 (O/L) Ground Stop lamp switch 2 Input Stop lamp switch OFF (brake pedal is released) 0V ON (brake pedal is depressed) Battery voltage 27 (O) Ground Front door lock assembly LH (unlock sensor) Input Front door LH LOCK status 11.8V UNLOCK status 0V 29 (Y) Ground Key slot switch Input When Intelligent Key is inserted into key slot Battery voltage When Intelligent Key is not inserted into key slot 0V 31 (G) Ground Rear window defogger feedback signal Input Rear window defogger switch OFF 0V ON Battery voltage 32 (R/B) Ground Front door RH switch Input Front door RH switch OFF (when front door RH closes) 11.8 V ON (when front door RH opens) 0V 37 (O) Ground Trunk lid opener cancel switch Input Trunk lid opener cancel switch CANCEL 1.1V ON 0V 38 (GR/W) Ground Rear window defogger ON signal Input Rear window defogger switch OFF 5V ON 0V 40 (Y/G) Ground Power window serial link Input/Output Ignition switch ON 10.2V Ignition switch OFF or ACC 0V 41 (W) Ground Engine switch (push switch) illumination Output Engine switch (push switch) illumination ON 5.5V OFF 0V 42 (R) Ground LOCK indicator lamp Output LOCK indicator lamp ON 0V OFF Battery voltage 45 (P) Ground Receiver & sensor ground Input Ignition switch ON 0V 46 (V/W) Ground Receiver & sensor power supply output Output Ignition switch OFF 0V ACC or ON 5.0V 47 (1) (G/O) Ground Tire pressure receiver signal Input/Output Ignition switch ON Standby state When receiving the signal from the transmitter 48 (R/G) Ground Selector lever transmission range switch signal Input Selector lever P or N position 12.0V Except P and N positions 0V 49 (L/O) Ground Security indicator signal Output Security indicator ON 0V Blinking 11.3V OFF Battery voltage 50 (LG/B) Ground Combination switch INPUT 5 Output Combination switch (Wiper intermittent dial 4) All switch OFF 0V Lighting switch 1ST 10.7V Lighting switch high-beam Lighting switch 2ND Turn signal switch RH 51 (L/W) Ground Combination switch INPUT 1 Output Combination switch All switch OFF (Wiper intermittent dial 4) 0V Front wiper switch HI (Wiper intermittent dial 4) 10.7V Any of the conditions below with all switch OFF Wiper intermittent dial 1 Wiper intermittent dial 2 Wiper intermittent dial 3 Wiper intermittent dial 6 Wiper intermittent dial 7 52 (G/B) Ground Combination switch INPUT 2 Output Combination switch All switch OFF (Wiper intermittent dial 4) 0V Front washer switch ON (Wiper intermittent dial 4) 10.7V Any of the conditions below with all switch OFF Wiper intermittent dial 1 Wiper intermittent dial 5 Wiper intermittent dial 6 53 (LG/R) Ground Combination switch INPUT 3 Output Combination switch (Wiper intermittent dial 4) All switch OFF 0V Front wiper switch INT 10.7V Front wiper switch LO Lighting switch AUTO 54 (G/Y) Ground Combination switch INPUT 4 Output Combination switch (Wiper intermittent dial 4) All switch OFF 0V Front fog lamp switch ON 10.7V Lighting switch 2ND Lighting switch flash-to-pass Turn signal switch LH 57 (1) (W) Ground Tire pressure warning check switch Input - 5V 58 (SB) Ground Front door LH switch Input Front door LH switch OFF (front door LH CLOSE) 11.8V ON (front door LH OPEN) 0V 59 (G/R) Ground Rear window defogger relay Output Rear window defogger Active Battery voltage Not activated 0V 60 (B/R) Ground Front console antenna 2 (-) Output Ignition switch OFF When Intelligent Key is in the passenger compartment When Intelligent Key is not in the passenger compartment 61 (W/R) Ground Center console antenna 2 (+) Output Ignition switch OFF When Intelligent Key is in the passenger compartment When Intelligent Key is not in the passenger compartment 62 (V) Ground Front outside handle RH antenna (-) Output When the front door RH request switch is operated with ignition switch OFF When Intelligent Key is in the antenna detection area When Intelligent Key is not in the antenna detection area 63 (P) Ground Front outside handle RH antenna (+) Output When the front door RH request switch is operated with ignition switch OFF When Intelligent Key is in the antenna detection area When Intelligent Key is not in the antenna detection area 64 (V) Ground Front outside handle LH antenna (-) Output When the front door LH request switch is operated with ignition switch OFF When Intelligent Key is in the antenna detection area When Intelligent Key is not in the antenna detection area 65 (P) Ground Front outside handle LH antenna (+) Output When the front door LH request switch is operated with ignition switch OFF When Intelligent Key is in the antenna detection area When Intelligent Key is not in the antenna detection area 68 (G/O) Ground NATS antenna amp (built in key slot) Input/Output During waiting Ignition switch is pressed while inserting the Intelligent Key into the key slot. Just after pressing ignition switch. Pointer of tester should move. 69 (O) Ground NATS antenna amp (built in key slot) Input/Output During waiting Ignition switch is pressed while inserting the Intelligent Key into the key slot. Just after pressing ignition switch. Pointer of tester should move. 70 (R/B) Ground Ignition relay-2 control Output Ignition switch OFF or ACC 0V ON Battery voltage 71 (L/O) Ground Remote keyless entry receiver signal Input/Output During waiting When operating either button on Intelligent Key 75 (R/Y) Ground Combination switch OUTPUT 5 Input Combination switch All switch OFF (Wiper intermittent dial 4) 1.4V Front fog lamp switch ON (Wiper intermittent dial 4) 1.3V Any of the conditions below with all switch OFF Wiper intermittent dial 1 Wiper intermittent dial 2 Wiper intermittent dial 6 Wiper intermittent dial 7 1.3V 76 (R/G) Ground Combination switch OUTPUT 3 Input Combination switch All switch OFF (Wiper intermittent dial 4) 1.4V Lighting switch high-beam (Wiper intermittent dial 4) 1.3V Lighting switch 2ND (Wiper intermittent dial 4) 1.3V Any of the conditions below with all switch OFF Wiper intermittent dial 1 Wiper intermittent dial 2 Wiper intermittent dial 3 1.3V 78 (P) Ground CAN-L Input/Output - - 79 (L) Ground CAN-H Input/Output - - 80 (R/L) Ground Key slot illumination Output Key slot illumination OFF 0V Blinking 6.5V ON Battery voltage 81 (LG) Ground ON indicator lamp Output Ignition switch OFF or ACC 0V ON Battery voltage 83 (L) Ground ACC relay control Output Ignition switch OFF 0V ACC or ON Battery voltage 84 (Y/R) Ground CVT shift selector Output - Battery voltage 87 (G/B) Ground Selector lever P position switch Input Selector lever P position 0V Any position other than P Battery voltage 88 (R) Ground Front door RH request switch Input Front door RH request switch ON (pressed) 0V OFF (not pressed) 1.0V 89 (R) Ground Front door LH request switch Input Front door LH request switch ON (pressed) 0V OFF (not pressed) 1.0V 90 (Y) Ground Blower fan motor relay control Output Ignition switch OFF or ACC 0V ON Battery voltage 91 (L/R) Ground Remote keyless entry receiver power supply Output Ignition switch OFF Battery voltage 95 (R/W) Ground Combination switch OUTPUT 1 Input Combination switch (Wiper intermittent dial 4) All switch OFF 1.4V Turn signal switch LH 1.3V Turn signal switch RH 1.3V Front wiper switch LO 1.3V Front washer switch ON 1.3V 96 (P/B) Ground Combination switch OUTPUT 4 Input Combination switch All switch OFF (Wiper intermittent dial 4) 1.4V Lighting switch AUTO (Wiper intermittent dial 4) 1.3V Lighting switch 1ST (Wiper intermittent dial 4) 1.3V Any of the conditions below with all switch OFF Wiper intermittent dial 1 Wiper intermittent dial 5 Wiper intermittent dial 6 1.3V 97 (R/B) Ground Combination switch OUTPUT 2 Input Combination switch (Wiper intermittent dial 4) All switch OFF 1.4V Lighting switch flash-to-pass 1.3V Lighting switch 2ND 1.3V Front wiper switch INT 1.3V Front wiper switch HI 1.3V 98 (G/O) Ground Hazard switch Input Hazard switch Pressed 0 V Not pressed 1.1V 103 (V) Ground Trunk lid opening. Output Trunk lid Open (trunk lid opener actuator is activated) Battery voltage Close (trunk lid opener actuator is not activated) 0V 110 (V/W) Ground Trunk room lamp Output Trunk room lamp ON 0V OFF Battery voltage 114 (B) Ground Trunk room antenna 1 (-) Output Ignition switch OFF When Intelligent Key is in the passenger compartment When Intelligent Key is not in the passenger compartment 115 (W) Ground Trunk room antenna 1 (+) Output Ignition switch OFF When Intelligent Key is in the passenger compartment When Intelligent Key is not in the passenger compartment 118 (L/O) Ground Rear bumper antenna (-) Output When the trunk lid request switch is operated with ignition switch OFF When Intelligent Key is in the antenna detection area When Intelligent Key is not in the antenna detection area 119 (BR/W) Ground Rear bumper antenna (+) Output When the trunk lid request switch is operated with ignition switch OFF When Intelligent Key is in the antenna detection area When Intelligent Key is not in the antenna detection area 127 (BR/W) Ground Ignition relay (IPDM E/R) control Output Ignition switch OFF or ACC Battery voltage ON 0V 130 (W) Ground Trunk room lamp switch Input Trunk room lamp switch OFF (trunk is closed) 11.8V ON (trunk is open) 0V 132 (R) Ground Starter motor relay control Output Ignition switch ON When selector lever is in P or N position and the brake is depressed Battery voltage When selector lever is in P or N position and the brake is not depressed 0V 140 (BR) Ground Engine switch (push switch) Input Engine switch (push switch) Pressed 0V Not pressed Battery voltage 141 (BR) Ground Trunk request switch Input Trunk request switch ON (pressed) 0V OFF (not pressed) 1.0V 144 (GR) Ground Request switch buzzer Output Request switch buzzer Sounding 0V Not sounding Battery voltage 147 (L/R) Ground Trunk lid opener switch Input Trunk lid opener switch Pressed 0V Not pressed Battery voltage 148 (R/W) Ground Rear door RH switch Input Rear door RH switch OFF (when rear door RH closes) 11.8V ON (when rear door RH opens) 0V 149 (R/B) Ground Rear door LH switch Input Rear door LH switch OFF (when rear door LH closes) 11.8V ON (when rear door LH opens) 0V (1) With low tire pressure monitoring system
Scheme 127
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Scheme 134
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Scheme 150
Scheme 151
Fail Safe
| Display contents of CONSULT | Fail-safe | Cancellation |
|---|---|---|
| B2190: NATS ANTENNA AMP | Inhibit engine cranking | Erase DTC |
| B2191: DIFFERENCE OF KEY | Inhibit engine cranking | Erase DTC |
| B2192: ID DISCORD BCM-ECM | Inhibit engine cranking | Erase DTC |
| B2193: CHAIN OF BCM-ECM | Inhibit engine cranking | Erase DTC |
| B2195: ANTI-SCANNING | Inhibit engine cranking | Erase DTC |
| B2560: STARTER CONT RELAY | Inhibit engine cranking | 500 ms after the following CAN signal communication status has become consistent Starter control relay signal Starter relay status signal |
| B2562: LO VOLTAGE | Inhibit engine cranking | 100 ms after the power supply voltage increases to more than 8.8 V |
| B2608: STARTER RELAY | Inhibit engine cranking | 500 ms after the following signal communication status becomes consistent Starter motor relay control signal Starter relay status signal (CAN) |
| B260A: IGNITION RELAY | Inhibit engine cranking | 500 ms after the following conditions are fulfilled IGN relay (IPDM E/R) control signal: OFF (Battery voltage) Ignition ON signal (CAN to IPDM E/R): OFF (Request signal) Ignition ON signal (CAN from IPDM E/R): OFF (Condition signal) |
| B260F: ENG STATE SIG LOST | Maintains the power supply position attained at the time of DTC detection | When any of the following conditions is fulfilled Power position changes to ACC Receives engine status signal (CAN) |
| B2617: STARTER RELAY CIRC | Inhibit engine cranking | 1 second after the starter motor relay control inside BCM becomes normal |
| B2618: BCM | Inhibit engine cranking | 1 second after the ignition relay (IPDM E/R) control inside BCM becomes normal |
| B26E1: ENG STATE NO RECIV | Inhibit engine cranking | When any of the following conditions are fulfilled Power position changes to ACC Receives engine status signal (CAN) |
FAIL SAFE REFERENCE
SIGNAL REFERENCE Terminal No. (Wire color) Description Condition Value (Approx.) + - Signal name Input/Output 1 (R) Ground Battery power supply Input Ignition switch OFF Battery voltage 2 (L) Ground Battery power supply Input Ignition switch OFF Battery voltage 4 (LG) Ground Front wiper LO Output Ignition switch ON Front wiper switch OFF 0 V Front wiper switch LO Battery voltage 5 (Y) Ground Front wiper HI Output Ignition switch ON Front wiper switch OFF 0 V Front wiper switch HI Battery voltage 6 (L) Ground Daytime light relay power supply (Canada models only) Output Ignition switch OFF Battery voltage 7 (GR) Ground Tail, license plate lamps & interior lamps Output Ignition switch ON Lighting switch OFF 0 V Lighting switch 1ST Battery voltage 10 (BR) Ground ECM relay power supply Output Ignition switch OFF (For a few seconds after turning ignition switch OFF) 0 V Ignition switch ON Ignition switch OFF (More than a few seconds after turning ignition switch OFF) Battery voltage 12 (B) Ground Ground - Ignition switch ON 0 V 13 (SB) Ground Fuel pump power supply Output Approximately 1 second or more after turning the ignition switch ON 0 V Approximately 1 second after turning the ignition switch ON Engine running Battery voltage 15 (W) Ground Ignition relay-1 power supply Output Ignition switch OFF 0 V Ignition switch ON Battery voltage 16 (R) Ground Front wiper auto stop Input Ignition switch ON Front wiper stop position 0 V Any position other than front wiper stop position Battery voltage 19 (Y) Ground Ignition relay-1 power supply Output Ignition switch OFF 0 V Ignition switch ON Battery voltage 20 (L) Ground Ambient sensor ground - Ignition switch ON 0V 21 (LG) Ground Ambient sensor - Ignition switch ON 5V 22 (SB) Ground Refrigerant pressure sensor ground - Ignition switch ON 0V 23 (GR) Ground Refrigerant pressure sensor - Ignition switch ON (READY) Both A/C switch and blower motor switch ON (electric compressor operates) 1.0 - 4.0V 24 (G) Ground Refrigerant pressure sensor power supply - Ignition switch ON 5V 25 (GR) Ground Ignition relay-1 power supply Output Ignition switch OFF 0 V Ignition switch ON Battery voltage 27 (W) Ground Ignition relay monitor Input Ignition switch OFF or ACC Battery voltage Ignition switch ON 0 V 28 (SB) Ground Push-button ignition switch Input Press the push-button ignition switch 0 V Release the push-button ignition switch Battery voltage 30 (BR) Ground Starter relay control Input CVT selector lever in any position other than P or N (ignition switch ON) 0 V CVT selector lever P or N (ignition switch ON) Battery voltage 34 (O) Ground Cooling fan relay-3 control Input Ignition switch OFF or ACC 0 V Ignition switch ON 0.7 V 35 (P) Ground Cooling fan motor control Output Ignition switch OFF or ACC 0 V Ignition switch ON 0.7 V 36 (G) Ground Battery power supply Input Ignition switch OFF Battery voltage 38 (GR) Ground Cooling fan motor control Output Ignition switch OFF or ACC 0 V Ignition switch ON 0.7 V 39 (P) - CAN - L Input/Output - - 40 (L) - CAN - H Input/Output - - 41 (B) Ground Ground - Ignition switch ON 0 V 42 (SB) Ground Cooling fan relay-2 control Input Ignition switch OFF or ACC 0 V Ignition switch ON 0.7 V 43 (Y) Ground CVT shift selector (Detention switch) Input Ignition switch ON Press the CVT selector button (CVT selector lever P) Battery voltage CVT selector lever in any position other than P Release the CVT selector button (CVT selector lever P) 0 V 44 (W) Ground Horn relay control Input The horn is deactivated Battery voltage The horn is activated 0 V 45 (GR) Ground Anti theft horn relay control Input The horn is deactivated Battery voltage The horn is activated 0 V 46 (BR) Ground Starter relay control Input CVT selector lever in any position other than P or N (ignition switch ON) 0 V CVT selector lever P or N (ignition switch ON) Battery voltage 48 (W) Ground A/C relay power supply Output Engine running A/C switch OFF 0 V A/C switch ON (A/C compressor is operating) Battery voltage 49 (R/G) Ground ECM relay power supply Output Ignition switch OFF (For a few seconds after turning ignition switch OFF) 0 V Ignition switch ON Ignition switch OFF (More than a few seconds after turning ignition switch OFF) Battery voltage 51 (LG) Ground Ignition relay power supply Output Ignition switch OFF 0 V Ignition switch ON Battery voltage 52 (Y/G) Ground Ignition relay power supply Output Ignition switch OFF 0 V Ignition switch ON Battery voltage 53 (R/W) Ground ECM relay power supply Output Ignition switch OFF (For a few seconds after turning ignition switch OFF) 0 V Ignition switch ON Ignition switch OFF (More than a few seconds after turning ignition switch OFF) Battery voltage 54 (G/W) Ground Throttle control motor relay power supply Output Ignition switch OFF (For a few seconds after turning ignition switch OFF) 0 V Ignition switch ON Ignition switch OFF (More than a few seconds after turning ignition switch OFF) Battery voltage 55 (W/L) Ground ECM power supply Output Ignition switch OFF Battery voltage 56 (R/Y) Ground Ignition relay power supply Output Ignition switch OFF 0 V Ignition switch ON Battery voltage 57 (O) Ground Ignition relay power supply Output Ignition switch OFF 0 V Ignition switch ON Battery voltage 58 (Y) Ground Ignition relay power supply Output Ignition switch OFF 0 V Ignition switch ON Battery voltage 69 (W/B) Ground ECM relay control Output Ignition switch OFF (For a few seconds after turning ignition switch OFF) Battery voltage Ignition switch ON Ignition switch OFF (More than a few seconds after turning ignition switch OFF) 0 - 1.5 V 70 (O) Ground Throttle control motor relay control Output Ignition switch ON --> OFF 0 -1.0 V ↓ Battery voltage ↓ 0 V Ignition switch ON 0 - 1.0 V 72 (R/B) Ground Transmission range switch signal Input Ignition switch ON CVT selector lever in P or N position Battery voltage CVT selector lever in any position other than P or N position 0 V 75 (LG) Ground Oil pressure switch Input Ignition switch ON Engine stopped 0 V Engine running Battery voltage 76 (SB) Ground Power generation command signal Output Ignition switch ON 6.3 V 40% is set on "Active test", "ALTERNATOR DUTY" of "ENGINE" 3.8 V 80% is set on "Active test", "ALTERNATOR DUTY" of "ENGINE" 1.4 V 77 (GR) Ground Fuel pump relay control Output Approximately 1 second after turning the ignition switch ON Engine running 0 - 1.0 V Approximately 1 second or more after turning the ignition switch ON Battery voltage 80 (B) Ground Starter motor Output At engine cranking Battery voltage 83 (R/Y) Ground Headlamp LO (RH) Output Ignition switch ON Lighting switch OFF 0 V Lighting switch 2ND Battery voltage 84 (L) Ground Headlamp LO (LH) Output Ignition switch ON Lighting switch OFF 0 V Lighting switch 2ND Battery voltage 86 (W/R) Ground Front fog lamp (RH) Output Lighting switch 2ND Front fog lamp switch ON Daytime running light activated (Only for Canada models) Battery voltage Front fog lamp switch OFF 0 V 87 (L/Y) Ground Front fog lamp (LH) Output Lighting switch 2ND Front fog lamp switch ON Daytime running light activated (Only for Canada models) Battery voltage Front fog lamp switch OFF 0 V 88 (R/W) Ground Washer pump power supply Output Ignition switch ON Battery voltage 89 (L/W) Ground Headlamp HI (RH) Output Ignition switch ON Lighting switch HI Lighting switch PASS Battery voltage Lighting switch OFF 0 V 90 (G) Ground Headlamp HI (LH) Output Ignition switch ON Lighting switch HI Lighting switch PASS Battery voltage Lighting switch OFF 0 V 91 (LG/R) Ground Parking lamp (RH) Output Ignition switch ON Lighting switch 1ST Battery voltage Lighting switch OFF 0 V 92 (LG/B) Ground Parking lamp (LH) Output Ignition switch ON Lighting switch 1ST Battery voltage Lighting switch OFF 0 V 99 (BR/W) Ground Ambient sensor ground - Ignition switch ON 0V 100 (SB) Ground Ambient sensor - Ignition switch ON 5V 101 (W) Ground Refrigerant pressure sensor ground - Ignition switch ON 0V 102 (R) Ground Refrigerant pressure sensor - Ignition switch ON (READY) Both A/C switch and blower motor switch ON (electric compressor operates) 1.0 - 4.0V 103 (P) Ground Refrigerant pressure sensor power supply - Ignition switch ON 5V 105 (V) Ground Daytime light relay control (Only for Canada models) Output Ignition switch ON Daytime light system active Battery voltage Ignition switch ON Daytime light system inactive 0 V
When CAN communication with ECM and BCM is impossible, IPDM E/R performs fail-safe control. After CAN communication recovers normally, it also returns to normal control.
If No CAN Communication Is Available With ECM
| Control part | Fail-safe in operation |
|---|---|
| Cooling fan | Signals cooling fans ON when the ignition switch is turned ON Signals cooling fans OFF when the ignition switch is turned OFF |
| A/C compressor | A/C relay OFF |
| Generator | Outputs the power generation command signal (PWM signal) 0% |
FAIL SAFE REFERENCE
If No CAN Communication Is Available With BCM
| Control part | Fail-safe in operation |
|---|---|
| Headlamp | Turns ON the headlamp low relay when the ignition switch is turned ON Turns OFF the headlamp low relay when the ignition switch is turned OFF Headlamp high relay OFF |
| Parking lamps License plate lamps Illumination Tail lamps | Turns ON the tail lamp relay when the ignition switch is turned ON Turns OFF the tail lamp relay when the ignition switch is turned OFF |
| Front wiper | The status just before activation of fail-safe control is maintained until the ignition switch is turned OFF while the front wiper is operating at LO or HI speed. The wiper is operated at LO speed until the ignition switch is turned OFF if the fail-safe control is activated while the front wiper is set in the INT mode and the front wiper motor is operating. |
| Front fog lamps (if equipped) | Front fog lamp relay OFF |
| Horn | Horn OFF |
| Ignition relay | The status just before activation of fail-safe is maintained. |
| Starter motor | Starter control relay OFF |
FAIL SAFE REFERENCE
- IPDM E/R monitors the voltage at the contact circuit and excitation coil circuit of the ignition relay inside it.
- IPDM E/R judges the ignition relay error if the voltage differs between the contact circuit and the excitation coil circuit.
- If the ignition relay cannot turn OFF due to contact seizure, it activates the tail lamp relay for 10 minutes to alert the user to the ignition relay malfunction when the ignition switch is turned OFF. IGNITION RELAY MALFUNCTION DETECTION FUNCTION REFERENCE DTC Ignition switch Ignition relay Tail lamp relay - ON ON - - OFF OFF - B2098: IGN RELAY ON OFF ON ON (10 minutes) B2099: IGN RELAY OFF ON OFF - NOTE: The tail lamp turns OFF when the ignition switch is turned ON.
IPDM E/R detects front wiper stop position by a front wiper auto stop signal.
When a front wiper auto stop signal is in the conditions listed below, IPDM E/R stops power supply to wiper after repeating a front wiper 10 second activation and 20 second stop five times.
| Ignition switch | Front wiper switch | Auto stop signal |
|---|---|---|
| ON | OFF | Front wiper stop position signal cannot be input 10 seconds. |
| ON | The signal does not change for 10 seconds. |
FRONT WIPER CONTROL SIGNAL REFERENCE
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.
IPDM E/R turns OFF the starter control relay to protect the starter motor when the starter control relay remains active for 90 seconds.
The Supplemental Restraint System such as "AIR BAG" and "SEAT BELT PRE-TENSIONER", used along with a front seat belt, helps to reduce the risk or severity of injury to the driver and front passenger for certain types of collision. This system includes seat belt switch inputs and dual stage front air bag modules. The SRS system uses the seat belt switches to determine the front air bag deployment, and may only deploy one front air bag, depending on the severity of a collision and whether the front occupants are belted or unbelted.
Information necessary to service the system safely is included in the SRS AIRBAG -- MAXIMA " and SEAT BELTS -- MAXIMA " articles.
| WARNING | To avoid rendering the SRS inoperative, which could increase the risk of personal injury or death in the event of a collision which would result in air bag inflation, all maintenance must be performed by an authorized NISSAN/INFINITI dealer. Improper maintenance, including incorrect removal and installation of the SRS, can lead to personal injury caused by unintentional activation of the system. For removal of Spiral Cable and Air Bag Module, see the SRS AIRBAG article. Do not use electrical test equipment on any circuit related to the SRS unless instructed to in this Service Information. SRS wiring harnesses can be identified by yellow and/or orange harnesses or harness connectors. |
| WARNING | When working near the Airbag Diagnosis Sensor Unit or other Airbag System sensors with the Ignition ON or engine running, DO NOT use air or electric power tools or strike near the sensor(s) with a hammer. Heavy vibration could activate the sensor(s) and deploy the air bag(s), possibly causing serious injury. When using air or electric power tools or hammers, always switch the Ignition OFF, disconnect the battery, and wait at least 3 minutes before performing any service. |
When performing the procedure after removing cowl top cover, cover the lower end of windshield with urethane, etc.
Precaution for Work
- When removing or disassembling each component, be careful not to damage or deform it. If a component may be subject to interference, be sure to protect it with a shop cloth.
- When removing (disengaging) components with a screwdriver or similar tool, be sure to wrap the component with a shop cloth or vinyl tape to protect it.
- Protect the removed parts with a shop cloth and prevent them from being dropped.
- Replace a deformed or damaged clip.
- If a part is specified as a non-reusable part, always replace it with new one.
- Be sure to tighten bolts and nuts securely to the specified torque.
- After installation is complete, be sure to check that each part works properly.
- Follow the steps below to clean components. Water soluble dirt: Dip a soft cloth into lukewarm water, and wring the water out of the cloth to wipe the dirty area. Then rub with a soft and dry cloth. Oily dirt: Dip a soft cloth into lukewarm water with mild detergent (concentration: within 2 to 3%), and wipe the dirty area. Then dip a cloth into fresh water, and wring the water out of the cloth to wipe the detergent off. Then rub with a soft and dry cloth.
- Do not use organic solvent such as thinner, benzene, alcohol, or gasoline.
- For genuine leather seats, use a genuine leather seat cleaner.
Special Service Tools
The actual shapes of Kent-Moore tools may differ from those of special service tools illustrated here.
SPECIAL SERVICE TOOL DESCRIPTION Tool number (Kent-Moore No.) Tool name Description - (J-46534) Trim Tool Set Removing trim components
