Precautions 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 SUPPLEMENTAL RESTRAINT SYSTEM and SEAT BELTS article.
| 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 SUPPLEMENTAL RESTRAINT SYSTEM . Do not use electrical test equipment on any circuit related to the SRS unless instructed to in this article. SRS wiring harnesses can be identified by yellow and/or orange harnesses or harness connectors. |
Fusible Link
A melted fusible link can be detected either by visual inspection or by feeling with finger tip. If its condition is questionable, use circuit tester or test lamp.
| CAUTION | If fusible link should melt, it is possible that critical circuit (power supply or large current carrying circuit) is shorted. In such a case, carefully check and eliminate cause of incident. Never wrap outside of fusible link with vinyl tape. Never let fusible link touch any other wiring harness, vinyl or rubber parts. |
Circuit Breaker (Built Into BCM)
For example, when current is 30A, the circuit is broken within 8 to 20 seconds.
A circuit breaker is used for the following systems
Scheme 41
- Sunroof (Scheme 41): Break Point Graph
SYSTEMS CONTROLLED BY IPDM E/R
- Lamp control Using CAN communication lines, it receives signals from the BCM and controls the following lamps: Headlamps (High, Low) Daytime light relay control (Canada only) Parking lamps Tail and license plate lamps Front fog lamps
- Wiper control Using CAN communication lines, it receives signals from the BCM and controls the front wipers.
- Daytime light relay control Using CAN communication lines, it receives signals from the BCM and controls the daytime light relay.
- Generator control Using CAN communication lines, it receives signals from the ECM and controls power generation output.
- Rear window defogger relay control (Crew cab only) Using CAN communication lines, it receives signals from the BCM and controls the rear window defogger relay.
- A/C compressor control Using CAN communication lines, it receives signals from the BCM and controls the A/C compressor (magnet clutch).
- Starter control Using CAN communication lines, it receives signals from the BCM and controls the starter relay.
- Cooling fan control Using CAN communication lines, it receives signals from the ECM and controls the cooling fan relays.
- Horn control Using CAN communication lines, it receives signals from the BCM and controls the horn relay.
CAN COMMUNICATION LINE CONTROL
With CAN communication, by connecting each control unit using two communication lines (CAN L-line, CAN H-line), it is possible to transmit a maximum amount of information with minimum wiring. Each control unit can transmit and receive data, and reads necessary information only.
- Fail-safe control When CAN communication with other control units is impossible, IPDM E/R performs fail-safe control. After CAN communication returns to normal operation, it also returns to normal control. Operation of control parts by IPDM E/R during fail-safe mode is as follows: FAIL-SAFE MODE CHART Controlled system Fail-safe mode Headlamp With the ignition switch ON, the headlamp low is ON. With the ignition switch OFF, the headlamp low is OFF. Tail license plate and parking lamps With the ignition switch ON, the tail lamp relay is ON. With the ignition switch OFF, the tail lamp relay is OFF. Cooling fan With the ignition switch ON, the cooling fan HI operates. With the ignition switch OFF, the cooling fan stops. Front wiper Until the ignition switch is turned off, the front wiper LO and HI remains in the same status it was in just before fail-safe control was initiated. Rear window defogger Rear window defogger relay OFF A/C compressor A/C compressor OFF Front fog lamps Front fog lamp relay OFF
IPDM E/R STATUS CONTROL
In order to save power, IPDM E/R switches status by itself based on each operating condition.
- CAN communication status CAN communication is normally performed with other control units. Individual unit control by IPDM E/R is normally performed. When sleep request signal is received from BCM, mode is switched to sleep waiting status.
- Sleep waiting status Process to stop CAN communication is activated. All systems controlled by IPDM E/R are stopped. When 3 seconds have elapsed after CAN communication with other control units is stopped, mode switches to sleep status.
- Sleep status IPDM E/R operates in low current-consumption mode. CAN communication is stopped. When a change in CAN communication signal is detected, mode switches to CAN communication status. When a change in ignition switch signal is detected, mode switches to CAN communication status.
Function of Detecting Ignition Relay Malfunction
- When the integrated ignition relay is stuck in a "closed contact" position and cannot be turned OFF, IPDM E/R turns ON tail and parking lamps for 10 minutes to indicate IPDM E/R malfunction.
- When the state of the integrated ignition relay does not agree with the state of the ignition switch signal received via CAN communication, the IPDM E/R activates the tail lamp relay. IGNITION RELAY STATUS Ignition switch signal Ignition relay status Tail lamp relay ON ON - OFF OFF - ON OFF - OFF ON ON (10 minutes)
Note. When the ignition switch is turned ON, the tail lamps are OFF.
CONSULT-II Function (IPDM E/R)
CONSULT-II can display each diagnostic item using the diagnostic test modes shown following.
| IPDM E/R Diagnostic Mode | Description |
|---|---|
| SELF-DIAG RESULTS | Displays IPDM E/R self-diagnosis results. |
| DATA MONITOR | Displays IPDM E/R input/output data in real time. |
| CAN DIAG SUPPORT MNTR | The result of transmit/receive diagnosis of CAN communication can be read. |
| ACTIVE TEST | Operation of electrical loads can be checked by sending drive signal to them. |
DIAGNOSTIC TEST MODES CHART
CONSULT-II START PROCEDURE
Refer to " CONSULT-II START PROCEDURE ".
Display Item List
| Display items | CONSULT-II display code | Malfunction detection | TIME | Possible causes | |
|---|---|---|---|---|---|
| CRNT | PAST | ||||
| NO DTC IS DETECTED. FURTHER TESTING MAY BE REQUIRED. | |||||
| CAN COMM CIRC | U1000 | If CAN communication reception/transmission data has a malfunction, or if any of the control units fail, data reception/transmission cannot be confirmed. When the data in CAN communication is not received before the specified time. | X | X | Any of items listed below have errors: TRANSMIT DIAG ECM BCM/SEC |
DISPLAY ITEM LIST
Note. The details for display of the period are as follows
- CRNT: Error currently detected with IPDM E/R.
- PAST: Error detected in the past and placed in IPDM E/R memory.
| Item name | CONSULT-II screen display | Display or unit | Monitor item selection | Description | ||
|---|---|---|---|---|---|---|
| ALL SIGNALS | MAIN SIGNALS | SELECTION FROM MENU | ||||
| Motor fan request | MOTOR FAN REQ | 1/2/3/4 | X | X | X | Signal status input from ECM |
| Compressor request | AC COMP REQ | ON/OFF | X | X | X | Signal status input from BCM |
| Parking, license plate, and tail lamp request | TAIL & CLR REQ | ON/OFF | X | X | X | Signal status input from BCM |
| Headlamp low beam request | HL LO REQ | ON/OFF | X | X | X | Signal status input from BCM |
| Headlamp high beam request | HL HI REQ | ON/OFF | X | X | X | Signal status input from BCM |
| Front fog lamps request | FR FOG REQ | ON/OFF | X | X | X | Signal status input from BCM |
| Front wiper request | FR WIP REQ | STOP/1LO/LO/HI | X | X | X | Signal status input from BCM |
| Wiper auto stop | WIP AUTO STOP | ACT P/STOP P | X | X | X | Output status of IPDM E/R |
| Wiper protection | WIP PROT | OFF/LS/HS/BLOCK | X | X | X | Control status of IPDM E/R |
| Starter request | ST RLY REQ | ON/OFF | X | X | Signal status input from BCM | |
| Ignition relay status | IGN RLY | ON/OFF | X | X | X | Ignition relay status monitored with IPDM E/R |
| Rear defogger request | RR DEF REQ | ON/OFF | X | X | X | Signal status input from BCM |
| Hood switch | HOOD SW ( (1) ) | OFF | X | Signal status input from IPDM E/R | ||
| Theft warning horn request | THFT HRN REQ | ON/OFF | X | X | Signal status input from BCM | |
| Horn chirp | HORN CHIRP | ON/OFF | X | X | Output status of IPDM E/R | |
| Daytime lights request | DTRL REQ | ON/OFF | X | X | Signal status input from BCM | |
| Oil pressure switch | OIL P SW | OPEN/CLOSE | X | X | Signal status input from IPDM E/R | |
| (1) This item is displayed, but does not function. | ||||||
| (1) | This item is displayed, but does not function. |
DATA MONITOR DESCRIPTION CHART
Note. Perform monitoring of IPDM E/R data with the ignition switch ON. When the ignition switch is in ACC position, display may not be correct.
CAN DIAG SUPPORT MNTR
Refer to System Description.
| Test name | CONSULT-II screen display | Description |
|---|---|---|
| Rear defogger output | REAR DEFOGGER | With a certain ON-OFF operation, the rear defogger relay can be operated. |
| Front wiper (HI, LO) output | FRONT WIPER | With a certain operation (OFF, HI ON, LO ON), the front wiper relay (Lo, Hi) can be operated. |
| Cooling fan output | MOTOR FAN | With a certain operation (1, 2, 3, 4), the cooling fan can be operated. |
| Headlamp relay (HI, LO) output | EXTERNAL LAMPS | With a certain operation (OFF, HI ON, LO ON, TAIL ON, FOG ON), the lamp relay (Low, High, Tail, Fog) can be operated. |
| Front fog lamp relay (FOG) output | EXTERNAL LAMPS | With a certain operation (OFF, HI ON, LO ON, TAIL ON, FOG ON), the lamp relay (Low, High, Tail, Fog) can be operated. |
| Tail lamp relay output | EXTERNAL LAMPS | With a certain operation (OFF, HI ON, LO ON, TAIL ON, FOG ON), the lamp relay (Low, High, Tail, Fog) can be operated. |
| Horn output | HORN | With a certain ON-OFF operation, the horn relay can be operated. |
DISPLAY ITEM LIST
Terminals and Reference Values for IPDM E/R
| Terminal | Wire color | Signal name | Signal input/output | Measuring condition | Reference value (Approx.) | ||
|---|---|---|---|---|---|---|---|
| Ignition switch | Operation or condition | ||||||
| 1 | W | Battery power supply | Input | OFF | Battery voltage | ||
| 2 | R | Battery power supply | Input | OFF | Battery voltage | ||
| 3 | G | Ignition coil | Output | ON or START | Battery voltage | ||
| 4 | P | ECM relay | Output | ON or START | Battery voltage | ||
| 6 | V | Throttle control relay | Output | ON or START | Battery voltage | ||
| 7 | BR | ECM relay control | Input | Ignition switch ON or START | 0V | ||
| Ignition switch OFF or ACC | Battery voltage | ||||||
| 8 | W/R | O2 and A/F sensor ignition supply | Output | ON or START | Battery voltage | ||
| 10 | R/B | Battery power supply (daytime light relay) | Output | OFF | Battery voltage | ||
| 11 | Y | A/C compressor | Output | ON | A/C switch or auto A/C request ON | Battery voltage | |
| 12 | W/G | Ignition switch | Input | OFF or ACC | 0V | ||
| 13 | R | Fuel pump relay | Output | OFF or ACC | 0V | ||
| ON or START | Battery voltage | ||||||
| 14 | W/G | A/T ignition supply | Output | ON or START | Battery voltage | ||
| 15 | W/R | ABS ignition supply | Output | ON or START | Battery voltage | ||
| 16 | W/G | Reverse lamp | Output | ON or START | Battery voltage | ||
| 17 | W/G | Injector | Output | ON or START | Battery voltage | ||
| 19 | W | Starter motor | Output | START | Battery voltage | ||
| 20 | BR | Cooling fan motor (low) | Output | ON or START | Battery voltage | ||
| 21 | GR | Ignition switch | Input | OFF or ACC or ON | 0V | ||
| START | Battery voltage | ||||||
| 22 | G | Battery power supply (cooling fan relays) | Input | OFF | Battery voltage | ||
| 23 | LG | Heated mirror relay | Output | ON or START | Rear window defogger switch is ON | Battery voltage | |
| Rear window defogger switch is OFF | 0 | ||||||
| 24 | P | Cooling fan motor (high) | Output | ON or START | Battery voltage | ||
| 27 | W | Trailer tow relay | Output | ON or START | Battery voltage | ||
| 28 | R | LH front parking and front side marker lamp | Output | OFF | Lighting switch 1ST position | OFF | 0V |
| ON | Battery voltage | ||||||
| 29 | G | Trailer tow relay | Output | OFF | Lighting switch 1ST position | OFF | 0V |
| ON | Battery voltage | ||||||
| 30 | R/B | Battery power supply (ECM) | Input | OFF | Battery voltage | ||
| 32 | GR | Wiper low speed signal | Output | ON | Wiper switch | OFF | 0V |
| LO | Battery voltage | ||||||
| 35 | L | Wiper high speed signal | Output | ON | Wiper switch | OFF | 0V |
| HI | Battery voltage | ||||||
| 37 | Y | Generator | Output | ON | |||
| 38 | B | Ground | Input | 0V | |||
| 39 | L | CAN-H | ON | ||||
| 40 | P | CAN-L | ON | ||||
| 43 | G | Wiper auto stop signal | Input | ON | Wiper in non-park position | Battery voltage | |
| Wiper in park position | 0V | ||||||
| 44 | R | Daytime light relay 1 signal | Output | ON | Park brake switch position | OFF | 0V |
| ON | Battery voltage | ||||||
| 45 | LG | Horn relay | Input | OFF | When door locks are operated using keyfob | OFF | Battery voltage |
| ON | 0V | ||||||
| 46 | V | Fuel pump relay control | Input | Ignition switch ON or START | 0V | ||
| Ignition switch OFF or ACC | Battery voltage | ||||||
| 47 | O | Throttle control relay control | Input | Ignition switch ON or START | 0V | ||
| Ignition switch OFF or ACC | Battery voltage | ||||||
| 48 | R | Starter relay (inhibit switch) | Input | ON or START | Selector lever in "P" or "N" | Battery voltage | |
| Selector lever any other position | 0V | ||||||
| 49 | GR | RH front parking and front side marker lamp | Output | OFF | Lighting switch 1ST position | OFF | |
| ON | Battery voltage | ||||||
| 50 | W | Front fog lamp (LH) | Output | ON | Lighting switch must be in the 2ND position or AUTO position (LOW beam is ON) and the front fog lamp switch must be ON | OFF | 0V |
| ON | Battery voltage | ||||||
| 51 | V | Front fog lamp (RH) | Output | ON | Lighting switch must be in the 2ND position or AUTO position (LOW beam is ON) and the front fog lamp switch must be ON | OFF | 0V |
| ON | Battery voltage | ||||||
| 52 | P | Headlamp low (LH) | Output | OFF | Lighting switch 2ND position | OFF | 0V |
| ON | Battery voltage | ||||||
| 54 | R | Headlamp low (RH) | Output | OFF | Lighting switch 2ND position | OFF | 0V |
| ON | Battery voltage | ||||||
| 55 | G | Headlamp high (LH) | Output | OFF | Lighting switch HIGH or PASS position | OFF | 0V |
| ON | Battery voltage | ||||||
| 56 | L | Headlamp high (RH) | Output | OFF | Lighting switch HIGH or PASS position | OFF | 0V |
| ON | Battery voltage | ||||||
| 57 | GR | Rear parking, license, and tail lamp | Input | OFF | Lighting switch 1ST position | OFF | 0V |
| ON | Battery voltage | ||||||
| 59 | B | Ground | 0V | ||||
| 60 | GR | Rear window defogger relay output signal | Output | ON | When rear window defogger switch is ON | Battery voltage | |
| When rear window defogger switch is OFF | 0V | ||||||
| 61 | R/B | Battery power supply (trailer tow relay) | Output | OFF | Battery voltage | ||
CONNECTOR TERMINAL VOLTAGE REFERENCE
Scheme 42
Scheme 43
- FUSE AND FUSIBLE LINK INSPECTION Check that the following fusible links are not blown. CONNECTOR TERMINAL SIGNAL REFERENCE Terminal No. Signal name Fusible link No. 1, 2 Battery power a, c, d OK or NG OK: GO TO 2. NG: Replace fusible link.
- POWER CIRCUIT INSPECTION Turn ignition switch OFF. Disconnect IPDM E/R harness connector E118. Check voltage between IPDM E/R harness connector and ground. VOLTAGE SPECIFICATION CHART Terminals Voltage (Approx.) (+) (-) IPDM E/R connector Terminal E118 1, 2 Ground Battery voltage (Scheme 42): Checking Voltage Between IPDM E/R Harness Connector And Ground OK or NG OK: GO TO 3. NG: Repair or replace IPDM E/R power circuit harness.
- GROUND CIRCUIT INSPECTION Disconnect IPDM E/R harness connectors E122 and E124. Check continuity between IPDM E/R harness connectors E122 (A) terminal 38, E124 (B) terminal 59 and ground. Continuity should exist. OK or NG OK: Inspection End. NG: Repair or replace IPDM E/R ground circuit harness. (Scheme 43): Checking Continuity Between IPDM E/R Harness Connectors And Ground
To use the grid reference
- Find the desired connector number on the connector list.
- Find the grid reference.
- On the drawing, find the crossing of the grid reference letter column and number row.
- Find the connector number in the crossing zone.
- Follow the line to the connector.
Outline Diagram (KING CAB MODELS). Scheme 44
Outline Diagram (CREW CAB MODELS). Scheme 45
Identifying Main Harness Connector. Scheme 46
| A3 | M1 | W/12 | To R1 | B5 | M68 | V/1 | To M250 (with XM satellite radio tuner) |
|---|---|---|---|---|---|---|---|
| F1 | M3 | W/8 | Fuse block (J/B) | B5 | M68 | BR/1 | To M250 (with Sirius satellite radio tuner) |
| F2 | M4 | W/16 | Fuse block (J/B) | B4 | M70 | W/26 | Differential lock control unit |
| A5 | M6 | W/6 | To E10 | B4 | M71 | W/6 | Cargo lamp switch |
| A4 | M8 | W/16 | To D2 | F2 | M74 | W/16 | To D201 |
| A4 | M9 | W/24 | To D1 | F2 | M75 | W/12 | To D101 |
| A4 | M10 | Y/4 | To E29 | B3 | M76 | W/6 | Electric brake (pre-wiring) |
| C3 | M13 | W/3 | Front passenger air bag OFF indicator | D1 | M77 | Y/4 | Front passenger air bag module (service replacement) |
| C1 | M14 | B/4 | Optical sensor | E1 | M79 | Body ground | |
| E2 | M16 | W/12 | To B162 | A3 | M82 | W/2 | Circuit breaker-2 |
| E3 | M17 | W/16 | To B163 | E3 | M85 | W/4 | Aux in jack |
| B2 | M18 | W/40 | BCM (body control module) | A4 | M91 | W/16 | To E26 |
| B3 | M19 | W/15 | BCM (body control module) | E2 | M105 | Y/2 | Front passenger air bag module |
| B3 | M20 | B/15 | BCM (body control module) | E2 | M106 | O/2 | Front passenger air bag module |
| C4 | M21 | W/4 | NATS antenna amp. | A2 | M109 | BR/2 | Front tweeter LH |
| C3 | M22 | W/16 | Data link connector | E1 | M111 | BR/2 | Front tweeter RH |
| B2 | M24 | W/40 | Combination meter | E2 | M120 | W/4 | Remote keyless entry receiver |
| B3 | M26 | W/6 | Ignition switch | E2 | M122 | B/4 | Front blower motor resistor |
| B3 | M27 | W/2 | Key switch | C4 | M123 | W/2 | Tire pressure warning check connector |
| C3 | M28 | W/16 | Combination switch | B4 | M129 | V/1 | Satellite radio tuner (with XM satellite radio tuner) |
| C4 | M29 | Y/6 | Combination switch (spiral cable) | B4 | M129 | BR/1 | Satellite radio tuner (with Sirius satellite radio tuner) |
| C4 | M30 | GR/8 | Combination switch (spiral cable) | D4 | M141 | GR/8 | 4WD shift switch |
| F2 | M31 | SMJ | To E152 | C3 | M142 | B/6 | Mode door motor |
| E5 | M35 | Y/28 | Air bag diagnosis sensor unit | E2 | M146 | W/2 | Intake sensor |
| F3 | M36 | SMJ | To B149 | D2 | M147 | B/6 | Air mix door motor front |
| A4 | M40 | SMJ | To B69 | E4 | M149 | W/6 | Differential lock mode switch |
| A3 | M41 | W/16 | Pre-wiring for satellite radio tuner | C3 | M150 | W/2 | Ignition keyhole illumination |
| A3 | M41 | W/16 | Satellite radio tuner | B4 | M152 | W/26 | Transfer case control unit |
| C2 | M42 | W/12 | Audio unit | B4 | M153 | W/24 | Transfer case control unit |
| C2 | M43 | W/10 | Audio unit | D4 | M154 | GR/6 | VDC off switch |
| C2 | M44 | W/6 | Audio unit | D4 | M155 | W/8 | HDC switch |
| D2 | M45 | W/16 | Audio unit | D4 | M156 | W/10 | A/T device |
| B4 | M47 | W/8 | Steering angle sensor | B4 | M159 | W/16 | Door mirror remote control switch |
| D3 | M49 | B/26 | Front air control | E3 | M160 | BR/6 | Front heated seat switch RH |
| C3 | M51 | W/8 | Front blower switch | D4 | M161 | W/6 | Front heated seat switch LH |
| E3 | M53 | B/2 | Lower front power socket | B3 | M163 | W/8 | Clutch interlock cancel switch (with M/T) |
| E3 | M54 | GR/2 | Upper front power socket | A3 | M165 | L/4 | Cargo lamp relay |
| C3 | M55 | W/4 | Hazard switch | Console sub-harness | |||
| B3 | M57 | Body ground | E5 | M204 | W/6 | To M63 | |
| E2 | M58 | B6 | Intake door motor | F5 | M207 | B/2 | Console power socket |
| D2 | M61 | Body ground | |||||
| E2 | M62 | B/2 | Front blower motor | ||||
| D4 | M63 | W/6 | To M204 | ||||
MAIN HARNESS CONNECTOR REFERENCE CHART
Identifying Engine Room Harness (RH View) - Engine Compartment. Scheme 47
Refer to " ENGINE ROOM HARNESS (LH VIEW) " for continuation of engine room harness.
| E3 | E2 | W/16 | To F32 | C4 | E156 | L/4 | Transfer shut off relay 1 |
|---|---|---|---|---|---|---|---|
| D1 | E5 | W/24 | To F14 | E3 | E157 | L/4 | Transfer shut off relay 2 |
| C2 | E12 | L/5 | Stop lamp relay | C3 | E161 | B/3 | Battery current sensor |
| B3 | E15 | Body ground | C2 | E163 | L/4 | Trailer turn relay LH | |
| D2 | E16 | B/40 | ECM | E3 | E164 | L/4 | Trailer turn relay RH |
| E4 | E19 | W/16 | To F33 | D2 | E166 | BR/6 | Clutch interlock cancel relay 2 (with M/T) |
| C3 | E24 | Body ground | E4 | E168 | W/12 | To E225 | |
| C3 | E30 | Fusible link box (battery) | C2 | E171 | B/5 | Clutch interlock cancel relay 1 | |
| E4 | E40 | GR/9 | To E201 | Generator sub-harness | |||
| F3 | E41 | SMJ | To C1 (located RH rear of engine compartment) | E3 | E201 | GR/9 | To E40 |
| C2 | E45 | BR/6 | Back-up lamp relay (with A/T) | C3 | E202 | B/1 | To fuse and fusible link box |
| C3 | E46 | B/5 | Transfer shift high relay | B4 | E203 | Body ground | |
| F4 | E47 | B/5 | Transfer shift low relay | E6 | E205 | B/3 | Generator |
| D5 | E48 | B/3 | Refrigerant pressure sensor | E4 | E206 | B/1 | Generator |
| F4 | E54 | BR/6 | Front blower motor relay | F5 | E207 | GR/1 | Starter motor |
| B5 | E102 | B/2 | Front fog lamp RH | E4 | E208 | GR/1 | Oil pressure switch (with VQ40DE) |
| C2 | E103 | B/5 | Daytime light relay 1 | E5 | E209 | B/1 | Generator |
| D1 | E104 | L/4 | Daytime light relay 2 | E4 | E210 | B/1 | Starter motor |
| E1 | E105 | B/2 | Washer motor | Trailer tow harness | |||
| E2 | E106 | BR/2 | Washer fluid level switch | D4 | E225 | W/12 | To E168 |
| C5 | E107 | B/3 | Front combination lamp RH (head lamp) | C3 | E226 | L/6 | Back-up lamp relay (with M/T) |
| B3 | E108 | GR/2 | Front combination lamp RH (side marker) | C3 | E227 | L/4 | Trailer tow relay 1 |
| C4 | E111 | GR/3 | Front combination lamp RH (parking/turn signal) | B3 | E228 | BR/6 | Trailer tow relay 2 |
| C4 | E113 | GR/4 | Cooling fan motor | ||||
| D4 | E117 | GR/2 | Front wheel sensor RH | ||||
| F2 | E118 | B/2 | IPDM E/R (intelligent power distribution module engine room) | ||||
| E1 | E119 | W/16 | IPDM E/R (intelligent power distribution module engine room) | ||||
| E1 | E120 | W/6 | IPDM E/R (intelligent power distribution module engine room) | ||||
| E3 | E121 | BR/12 | IPDM E/R (intelligent power distribution module engine room | ||||
| E1 | E122 | W/12 | IPDM E/R (intelligent power distribution module engine room) | ||||
| E3 | E123 | BR/8 | IPDM E/R (intelligent power distribution module engine room) | ||||
| C2 | E124 | B/6 | IPDM E/R (intelligent power distribution module engine room) | ||||
| D5 | E128 | GR/2 | Fusible link box (battery) | ||||
| D4 | E129 | BR/2 | Fusible link box (battery) | ||||
| E4 | E150 | Battery ground | |||||
| C4 | E151 | Negative battery cable | |||||
ENGINE ROOM HARNESS CONNECTOR REFERENCE CHART
Identifying Engine Room Harness (RH View) - Passenger Compartment. Scheme 48
| C4 | E10 | W/8 | To M6 | C3 | E43 | L/2 | ASCD clutch switch |
|---|---|---|---|---|---|---|---|
| D3 | E20 | B/6 | Accelerator pedal position (APP) sensor | F4 | E152 | SMJ | To M31 |
| C4 | E26 | W/16 | To M91 | G2 | E158 | B/1 | Fuse block (J/B) |
| C4 | E29 | Y/4 | To M10 | G3 | E159 | B/2 | Fuse block (J/B) |
| C3 | E37 | BR/2 | ASCD brake switch | G3 | E160 | W/1 | Fuse block (J/B) |
| C3 | E38 | W/4 | Stop lamp switch (with A/T) | C3 | E163 | L/2 | Clutch interlock switch |
| C3 | E38 | B/2 | Stop lamp switch (with M/T) | C4 | E167 | B/2 | Diode-3 |
ENGINE ROOM HARNESS CONNECTOR REFERENCE CHART
Identifying Engine Room Harness (LH View) - Engine Compartment. Scheme 49
Refer to " ENGINE ROOM HARNESS (RH VIEW) " for continuation of engine room harness.
| E3 | E3 | B/1 | Horn | C1 | E23 | GR/5 | Front wiper motor |
|---|---|---|---|---|---|---|---|
| E5 | E4 | Y/2 | Crash zone sensor | E3 | E27 | GR/3 | Front combination lamp LH (parking/turn signal) |
| F2 | E9 | Body ground | D3 | E31 | B/3 | Front pressure sensor | |
| E3 | E11 | B/3 | Front combination lamp LH (headlamp) | D3 | E32 | B/3 | Rear pressure sensor |
| D5 | E13 | GR/2 | Ambient sensor 2 | C2 | E49 | B/6 | Active booster |
| E2 | E14 | Body ground | F4 | E101 | B/2 | Front fog lamp LH | |
| F2 | E17 | GR/2 | Front combination lamp LH (side marker) | D2 | E125 | B/47 | ABS actuator and electric unit (control unit) |
| D3 | E18 | GR/2 | Front wheel sensor LH | E2 | E126 | Body ground | |
| D2 | E21 | GR/2 | Brake fluid level switch | F3 | E162 | B/1 | Horn |
ENGINE ROOM HARNESS CONNECTOR REFERENCE CHART
Identifying Engine Control Harness (QR25DE MODELS). Scheme 50
| D5 | F3 | B/1 | A/C Compressor | B1 | F32 | W/16 | To E2 |
|---|---|---|---|---|---|---|---|
| C3 | F4 | GR/1 | Oil pressure switch | B1 | F33 | GR/6 | To E19 |
| C4 | F5 | B/6 | Ignition coil No. 1 (with power transistor) | A1 | F39 | Fusible link box (battery) | |
| C3 | F6 | GR/3 | Ignition coil No. 2 (with power transistor) | B4 | F44 | B/6 | To F101 |
| D3 | F7 | GR/3 | Ignition coil No. 3 (with power transistor) | B3 | F46 | B/2 | Power steering pressure sensor |
| D3 | F8 | GR/3 | Ignition coil No. 4 (with power transistor) | D4 | F50 | GR/2 | Electric throttle control actuator |
| F2 | F9 | G/10 | A/T assembly | B4 | F53 | B/6 | Mass air flow sensor |
| C4 | F10 | Engine ground | B1 | F54 | B/81 | ECM | |
| D3 | F11 | B/3 | Crankshaft position sensor (POS) | B4 | F61 | G/2 | Intake valve timing control solenoid valve |
| G3 | F13 ↓ | G/4 | Heated oxygen sensor 2 (with A/T) | E4 | F65 | L/4 | Air fuel ratio (A/F) sensor |
| G3 | F13 ↓↓ | L/4 | Heated oxygen sensor 2 (with M/T) | F1 | F66 | B/2 | Park/neutral position switch (with M/T) |
| B1 | F14 | W/24 | To E5 | G1 | F69 | W/2 | Back-up lamp switch (with M/T) |
| D4 | F15 | L/2 | EVAP canister purge volume control solenoid valve | Injector sub-harness | |||
| C4 | F16 | Engine ground | B4 | F101 | B/6 | To F44 | |
| D4 | F18 | C3 | Knock sensor | C4 | F102 | GR/2 | Fuel injector No. 1 |
| C2 | F21 | GR/2 | Condenser-1 | C3 | F103 | GR/2 | Fuel injector No. 2 |
| E2 | F23 | B/3 | Camshaft position sensor (PHASE) | C2 | F104 | GR/2 | Fuel injector No. 3 |
| E3 | F24 | GR/2 | Engine coolant temperature sensor | D2 | F105 | GR/2 | Fuel injector No. 4 |
| C3 | F27 | B/1 | Starter motor | ||||
ENGINE CONTROL HARNESS CONNECTOR REFERENCE CHART
Identifying Engine Control Harness (VQ40DE Models). Scheme 51
| C5 | F3 | B/1 | A/C Compressor | B4 | F50 | B/6 | Electric throttle control actuator |
|---|---|---|---|---|---|---|---|
| D4 | F5 | GR/4 | Air fuel ratio (A/F) sensor 1 (bank 2) | D5 | F51 | G/2 | Intake valve timing control solenoid valve (bank 2) |
| D4 | F6 | GR/3 | Ignition coil No. 2 (with power transistor) | C5 | F53 | B/6 | Mass air flow sensor |
| D4 | F7 | GR/3 | Ignition coil No. 4 (with power transistor) | A2 | F54 | B/81 | ECM |
| D4 | F8 | GR/3 | Ignition coil No. 6 (with power transistor) | F3 | F55 | B/2 | ATP switch |
| E2 | F9 | G/10 | A/T assembly | G2 | F58 | B/8 | Transfer control device |
| C4 | F10 | Engine ground | F2 | F59 | GR/2 | Wait detection switch | |
| D2 | F11 | B/3 | Crankshaft position sensor (POS) | F3 | F60 | GR/2 | 4LO switch |
| E3 | F12 ↓ | G/4 | Heated oxygen sensor 2 (bank 2) (with A/T) | C3 | F65 | GR/4 | Air fuel ratio (A/F) sensor 1 (bank 1) |
| E3 | F12 ↓↓ | G/4 | Heated oxygen sensor 2 (bank 2) (with M/T) | E2 | F66 | B/2 | Park/neutral position switch (with M/T) |
| E3 | F13 | L/4 | Heated oxygen sensor 2 (bank 1) | C2 | F67 | L/4 | To F150 |
| B2 | F14 | W/24 | To E5 | E2 | F69 | W/2 | Back-up lamp switch (with M/T) |
| B4 | F15 | L/2 | EVAP canister purge volume control solenoid valve | D3 | F70 | GR/3 | Camshaft position sensor (PHASE) (bank 1) |
| C4 | F16 | Engine ground | Injector sub-harness | ||||
| C4 | F18 | GR/2 | Fuel injector No. 2 | D2 | F101 | GR/4 | To F44 |
| C3 | F19 | B/2 | VIAS control solenoid valve | B4 | F102 | GR/2 | Fuel injector No. 1 |
| C4 | F20 | GR/2 | Fuel injector No. 4 | B4 | F103 | GR/2 | Fuel injector No. 3 |
| D3 | F21 | GR/2 | Condenser-1 | C3 | F104 | GR/2 | Fuel injector No. 5 |
| C3 | F22 | GR/2 | Fuel injector No. 6 | Ignition coil sub-harness | |||
| D3 | F23 | B/3 | Camshaft position sensor (PHASE) (bank 2) | C3 | F125 | G/8 | To F26 |
| C2 | F24 | GR/2 | Engine coolant temperature sensor | B3 | F126 | GR/3 | Ignition coil No. 1 (with power transistor) |
| C3 | F26 | G/8 | To F125 | B3 | F127 | GR/3 | Ignition coil No. 3 (with power transistor) |
| C3 | F27 | B/1 | Starter motor | C3 | F128 | GR/3 | Ignition coil No. 5 (with power transistor) |
| B2 | F32 | W/16 | To E2 | B3 | F129 | G/2 | Intake valve timing control solenoid valve (bank 1) |
| A2 | F33 | W/16 | To E19 | Knock sensor sub-harness | |||
| A2 | F39 | Fusible link box (battery) | D4 | F150 | L/4 | To F67 | |
| D3 | F44 | GR/4 | To F101 | C4 | F151 | B/2 | Knock sensor (bank 1) |
| A4 | F46 | B/3 | Power steering pressure sensor | C4 | F152 | B/2 | Knock sensor (bank 2) |
ENGINE CONTROL HARNESS CONNECTOR REFERENCE CHART
Identifying Engine Chassis Harness. Scheme 52
| G2 | C1 | SMJ | To E41 | A4 | C125 | GR/6 | To C51 |
|---|---|---|---|---|---|---|---|
| D3 | C5 | GR/5 | Fuel level sensor unit and fuel pump | B5 | C126 | B/7 | Trailer (7-pin) |
| C3 | C6 | B/2 | EVAP canister vent control valve | B5 | C126 | B/4 | Trailer (4-pin) |
| C3 | C7 | GR/3 | EVAP control system pressure sensor | A4 | C150 | B/2 | To C52 |
| D4 | C10 | GR/2 | Rear wheel sensor RH | Tail lamp sub-harness | |||
| C3 | C11 | GR/2 | Rear wheel sensor LH | A3 | C200 | GR/8 | To C15 |
| B4 | C14 | GR/4 | To C115 | A3 | C201 | BR/3 | Rear combination lamp LH (tail/stop) |
| B4 | C15 | GR/8 | To C200 | C4 | C202 | BR/3 | Rear combination lamp RH (tail/stop) |
| B4 | C51 | GR/6 | To C125 | A4 | C203 | GR/2 | License plate lamp LH |
| A4 | C52 | B/2 | To C150 | B5 | C204 | GR/2 | License plate lamp RH |
| Differential lock sub-harness | A4 | C205 | GR/2 | Rear combination lamp LH (back-up) | |||
| B4 | C115 | GR/4 | To C14 | C5 | C206 | GR/2 | Rear combination lamp RH (back-up) |
| D4 | C116 | GR/2 | Differential lock position switch | A3 | C207 | GR/2 | Rear combination lamp LH (turn signal) |
| D4 | C117 | B/2 | Differential lock solenoid | C4 | C208 | GR/2 | Rear combination lamp RH (turn signal) |
| Trailer sub-harness | |||||||
ENGINE CHASSIS HARNESS CONNECTOR REFERENCE CHART
Identifying Body Harness Connector (KING CAB Models). Scheme 53
| C5 | B5 | Body ground (LH satellite sensor) | C5 | B40 | W/8 | To E34 | |
|---|---|---|---|---|---|---|---|
| F2 | B6 | W/8 | To D201 | C5 | B69 | SMJ | To M40 |
| C5 | B7 | Body ground | C3 | B73 | B/6 | Yaw rate/side/decel G sensor | |
| C3 | B9 | Y/12 | Air bag diagnosis sensor unit | F3 | B76 | W/2 | Rear door speaker LH |
| D4 | B10 | Y/2 | Front LH side air bag module | C3 | B78 | Y/2 | To B157 |
| D4 | B12 | W/3 | Seat belt buckle switch LH | C2 | B80 | W/2 | Vanity lamp LH |
| E5 | B15 | Y/2 | LH side air bag (satellite) sensor | B1 | B81 | W/2 | Vanity lamp RH |
| F2 | B19 | Body ground | B1 | B82 | Y/2 | RH side curtain air bag module | |
| D2 | B38 | Y/2 | LH side curtain air bag module | C3 | B84 | B/1 | Parking brake switch |
ENGINE CHASSIS HARNESS CONNECTOR REFERENCE CHART
Identifying Body Harness Connector (CREW CAB Models). Scheme 54
| C4 | B5 | Body ground (LH satellite sensor) | ||
|---|---|---|---|---|
| E3 | B6 | W/12 | To D201 | |
| D4 | B7 | Body ground | ||
| E4 | B8 | W/3 | Front door switch LH | |
| C3 | B9 | Y/12 | Air bag diagnosis sensor unit | |
| D4 | B10 ↓ | Y/2 | Front LH side air bag module (without power seat) | |
| D4 | B10 ↓↓ | Y/2 | Front LH side air bag module (with power seat) | |
| D4 | B12 ↓ | W/3 | Seat belt buckle switch LH (without power seat) | |
| D4 | B12 ↓↓ | W/3 | Seat belt buckle switch LH (with power seat) | |
| E4 | B14 | Y/2 | Front LH seat belt pre-tensioner | |
| E5 | B15 | Y/2 | LH side air bag (satellite) sensor | |
| G2 | B18 | W/3 | Rear door switch LH | |
| F2 | B19 | Body ground | ||
| D4 | B37 | W/16 | To P1 | |
| D2 | B38 | Y/2 | LH side curtain air bag module | |
| C5 | B40 | W/8 | To E34 | |
| C5 | B69 | SMJ | To M40 | |
| F3 | B72 | GR/4 | Subwoofer (with audio amplifier) | |
| C3 | B73 | B/6 | Yaw rate/side/decel G sensor | |
| C3 | B78 | Y/2 | To B157 | |
| C2 | B80 | W/2 | Vanity lamp LH | |
| B1 | B81 | W/2 | Vanity lamp RH | |
| B1 | B82 | Y/2 | RH side curtain air bag module | |
| C2 | B83 | B/10 | Sunroof motor assembly | |
| D3 | B84 | B/1 | Parking brake switch |
BODY HARNESS CONNECTOR REFERENCE CHART
Identifying Body No. 2 Harness Connector (KING CAB Models). Scheme 55
| B3 | B106 | W/8 | To D301 | |
|---|---|---|---|---|
| E4 | B110 | W/3 | Seat belt buckle switch RH | |
| E5 | B112 | Body ground (RH satellite sensor) | ||
| E3 | B113 | Y/12 | Air bag diagnosis sensor unit | |
| D5 | B114 | Y/2 | RH side air bag (satellite) sensor | |
| E5 | B117 | Body ground | ||
| D4 | B126 | Y/2 | Front RH side air bag module | |
| B3 | B132 | Body ground | ||
| E4 | B136 | W/8 | To P151 | |
| F5 | B149 | SMJ | To M36 | |
| F3 | B157 | Y/2 | To B78 | |
| B3 | B160 | W/2 | Rear door speaker RH | |
| B1 | B161 | W/3 | High-mounted stop lamp | |
| F5 | B162 | W/12 | To M16 | |
| F5 | B163 | W/16 | To M17 |
BODY HARNESS CONNECTOR REFERENCE CHART
Identifying Body No. 2 Harness Connector (CREW CAB Models). Scheme 56
| F5 | B102 | W/2 | To E36 | C4 | B127 | Y/2 | Front RH seat belt pretensioner |
|---|---|---|---|---|---|---|---|
| C3 | B106 | W/12 | To D301 | B3 | B132 | Body ground | |
| D4 | B108 | W/3 | To D301 | E4 | B136 ↓ | W/8 | To P151 (without power seat) |
| E4 | B110 ↓ | W/3 | Front door switch RH (without power seat) | D5 | B136 ↓↓ | W/16 | To P151 (with power seat) |
| D4 | B110 ↓↓ | W/3 | Front door switch RH (with power seat) | D4 | B137 | B/3 | Belt tension sensor |
| E5 | B112 | Body ground (RH satellite sensor) | E5 | B149 | SMJ | To M36 | |
| E3 | B113 | Y/12 | Air bag diagnosis sensor unit | F3 | B157 | Y/2 | To B78 |
| D5 | B114 | Y/2 | RH side air bag (satellite) sensor | D4 | B158 | W/8 | Audio amplifier |
| E4 | B117 | Body ground | E4 | B159 | W/24 | Audio amplifier | |
| E4 | B126 ↓ | Y/2 | Front RH side air bag module (without power seat) | B1 | B161 | W/3 | High-mounted stop lamp |
| D4 | B126 ↓↓ | Y/2 | Front RH side air bag module (with power seat) | F5 | B162 | W/12 | To M16 |
BODY HARNESS CONNECTOR REFERENCE CHART
Identifying Room Lamp Harness Connectors. Scheme 57
| C5 | R1 | W/12 | To M1 | |
|---|---|---|---|---|
| B3 | R4 | W/3 | Sunroof switch | |
| B4 | R7 | B/10 | Auto anti-dazzling inside mirror (with HOMELINK universal transceiver) | |
| B3 | R9 ↓ | W/3 | Front room/map lamp assembly (with sunroof) | |
| B2 | R9 ↓↓ | W/3 | Front room/map lamp assembly (without sun roof) | |
| E1 | R10 ↓ | W/2 | Room lamp 2nd row (Crew cab models) | |
| D1 | R10 ↓ | W/2 | Room lamp 2nd row (King cab models) |
ROOM LAMP HARNESS CONNECTOR REFERENCE CHART
Identifying Front Door LH Harness Connectors. Scheme 58
| D1 | W/24 | To M9 | D8 | W/3 | Main power window and door lock/unlock switch |
|---|---|---|---|---|---|
| D2 | W/16 | To M8 | D9 | GR/2 | Front power window motor LH |
| D4 | B/10 | Door mirror remote control switch | D12 | W/2 | Front door speaker LH |
| D7 | W/16 | Main power window and door lock/unlock switch | D14 | GR/6 | Front door lock actuator LH |
DOOR HARNESS CONNECTOR REFERENCE CHART
Identifying Front Door RH Harness Connectors. Scheme 59
| D101 | W/12 | To M75 | D107 | B/10 | Door mirror RH |
|---|---|---|---|---|---|
| D102 | W/16 | To M74 | D112 | W/2 | Front door speaker RH |
| D104 | GR/2 | Front power window motor RH | D114 | BR/2 | Front door lock actuator RH |
| D105 | W/12 | Power window and door lock/unlock switch |
DOOR HARNESS CONNECTOR REFERENCE CHART
Identifying Rear Door LH Harness Connectors (KING CAB Models). Scheme 60
| D201 | W/8 | To B6 | D212 | GR/2 | Rear door switch lower LH |
|---|---|---|---|---|---|
| D210 | Y/2 | Front LH seat belt pre-tensioner | D213 | W/3 | Front door switch LH |
| D211 | B/2 | Rear door switch upper LH |
DOOR HARNESS CONNECTOR REFERENCE CHART
Identifying Rear Door RH Harness Connectors (KING CAB Models). Scheme 61
| D301 | W/8 | To B106 | D312 | B/2 | Rear door switch upper RH |
|---|---|---|---|---|---|
| D310 | Y/2 | Front RH seat belt pre-tensioner | D313 | B/2 | Rear door switch lower RH |
| D311 | B/3 | Belt tension sensor | D314 | W/3 | Front door switch RH |
DOOR HARNESS CONNECTOR REFERENCE CHART
Identifying Rear Door LH Harness Connectors (CREW CAB Models). Scheme 62
| D201 | W/12 | To B6 | D207 | W/2 | Rear door speaker LH (base audio) |
|---|---|---|---|---|---|
| D203 | W/8 | Rear power window switch LH | D207 | BR/2 | Rear door speaker LH (premium audio) |
| D204 | B/2 | Rear power window motor LH | D208 | BR/2 | Rear door tweeter LH |
| D205 | BR/2 | Rear door lock actuator LH |
DOOR HARNESS CONNECTOR REFERENCE CHART
Identifying Rear Door RH Harness Connectors (CREW CAB Models). Scheme 63
| D301 | W/12 | To B106 | D307 | W/2 | Rear door speaker RH (base audio) |
|---|---|---|---|---|---|
| D303 | W/8 | Rear power window switch RH | D307 | BR/2 | Rear door speaker RH (premium audio) |
| D304 | B/2 | Rear power window motor RH | D308 | BR/2 | Rear door tweeter RH |
| D305 | BR/2 | Rear door lock actuator RH |
DOOR HARNESS CONNECTOR REFERENCE CHART
NORMAL OPEN, NORMAL CLOSED AND MIXED TYPE RELAYS
Relays can mainly be divided into three types: normal open, normal closed and mixed type relays.
Identifying Normal Open, Normal Closed And Mixed Type Relays. Scheme 64
Identifying Standardized Relays. Scheme 65
| 1M | 1 Make | 2M | 2 Make |
|---|---|---|---|
| 1T | 1 Transfer | 1M.1B | 1 Make 1 Break |
STANDARDIZED RELAYS REFERENCE CHART
