#
BODY CONTROL MODULE (BCM) INSPECTION

id094000800300

1. Measure the voltage or inspect for continuity according to the Terminal Voltage Table (Reference).

  • If the voltage is not as specified in the Terminal Voltage Table (Reference), inspect the parts under "Inspection item(s)" and related wiring harnesses.

## Terminal Voltage Table (Reference)

Terminal | Signal name | Connected to | Measured condition | Voltage (V)/Continuity | Inspection item(s)
--- | --- | --- | --- | --- | ---
1A | Trunk lid/liftgate lock control | • Trunk lid opener (4SD) • Liftgate lock actuator (5HB, WGN) | Lock actuator locking | 1.0 or less → B+ → 1.0 or less | • Trunk lid opener (4SD) • Liftgate lock actuator (5HB, WGN) • Related wiring harnesses
Other | 1.0 or less
1C | Trunk lid/liftgate unlock control | • Trunk lid opener (4SD) • Liftgate lock actuator (5HB, WGN) | Lock actuator unlocking | 1.0 or less → B+ → 1.0 or less | • Trunk lid opener (4SD) • Liftgate lock actuator (5HB, WGN) • Related wiring harnesses
Other | 1.0 or less
1F | Door switch signal (LR) | Door switch (LR) | Door open (LR) (Door switch on) | 1.0 or less | • Door switch (LR) • Related wiring harnesses
Doors closed (LR) (Door switch off) | B+
1G | Headlight leveling (manual) GND | Headlight leveling actuator | Under any condition: Inspect for continuity to headlight leveling actuator. | Continuity detected | • Related wiring harnesses
1I | Interior light control | • Map light • Interior light | Within 5 min after any door is opened. | 1.0 or less | • Map light • Interior light • Related wiring harnesses
5 min or more after any door is opened. | B+
All doors closed | B+
1K | Interior light power supply | • Map light • Interior light | Under any condition | B+ | • Map light • Interior light • Related wiring harnesses
1M | Brake light power supply | Brake light | Stop light switch is ON | B+ | • Brake light • Related wiring harnesses
Stop light switch is OFF | 1.0 or less
1O | Back-up light power supply | Back-up light | Back-up light switch is ON | B+ | • Back-up light • Related wiring harnesses
Back-up light switch is OFF | 1.0 or less
1P | Taillight power supply | Taillight | TNS switch is ON | B+ | • Taillight • Related wiring harnesses
TNS switch is OFF | 1.0 or less
2A | Fuel level signal 2 output | Instrument cluster | Under any condition: Inspect for continuity to instrument cluster. | Continuity detected | • Related wiring harnesses
2B | Fuel level signal 1 output | Instrument cluster | Under any condition: Inspect for continuity to instrument cluster. | Continuity detected | • Related wiring harnesses
2C | Woofer signal 1 | Woofer | Under any condition: Inspect for continuity to woofer. | Continuity detected | • Related wiring harnesses
2D | Rear wiper motor power supply | Rear wiper motor | Rear wiper switch is ON | B+ | • Rear wiper motor • Related wiring harnesses
Rear wiper switch is OFF | 1.0 or less
2E | Woofer signal 2 | Woofer | Under any condition: Inspect for continuity to woofer. | Continuity detected | • Related wiring harnesses
2F | • Trunk compartment light signal (4SD) • cargo compartment light switch signal (5HB, WGN) | • Trunk compartment light switch (4SD) • Cargo compartment light switch (5HB, WGN) | Trunk lid/liftgate is open. (Switch on) | 1.0 or less | • Trunk compartment light switch (4SD) • Cargo compartment light switch (5HB, WGN) • Related wiring harnesses
Trunk lid/liftgate is closed. (Switch off) | B+
2G | Woofer GND | GND | Under any condition: Inspect for continuity to GND. | Continuity detected | • Related wiring harnesses
2H | Theft-deterrent siren signal | Theft-deterrent siren | Theft-deterrent system arming (See FIG 1 (Inspection Using an Oscilloscope (Reference)).) | See Fig 1 | • Theft-deterrent siren • Related wiring harnesses
2I | Rear turn light (RH) control | Rear turn light (RH) | Turn switch (RH) is ON | Alternates between 1.0 or less and B+ | • Rear turn light (RH) • Related wiring harnesses
Turn switch is OFF | 1.0 or less
2J | Autostop switch signal | Autostop switch | Rear wiper moving | B+ | • Autostop switch (rear wiper motor) • Related wiring harnesses
Rear wiper stopped | 1.0 or less
2K | Rear turn light (LH) control | Rear turn light (LH) | Turn switch (LH) is ON | Alternates between 1.0 or less and B+ | • Rear turn light (LH) • Related wiring harnesses
Turn wiper switch is OFF | 1.0 or less
2L | Trunk lid lock/unlock signal | Trunk lid key cylinder switch | At the moment key cylinder is unlocked | 1.0 or less | • Trunk lid key cylinder switch • Related wiring harnesses
Other | B+
2M | Sunroof power supply | Sunroof switch | Under any condition | B+ | • Sunroof switch • Battery
2N | Intruder sensor (rear) power supply | Intruder sensor (rear) (WGN only) | Theft-deterrent system pre-arming or arming | B+ | • Related wiring harnesses
Other | 1.0 or less
2O | Auto leveling control module signal | Auto leveling control module | Under any condition: Inspect for continuity to auto leveling control module. | Continuity detected | • Related wiring harnesses
2P | Intruder sensor signal | Intruder sensor (rear) (WGN only) | Theft-deterrent system pre-arming, arming, or alarm | B+ | • Intruder sensor (rear) • Related wiring harnesses
Intruder sensor detects intrusion | B+ → 1.0 or less → B+
Theft-deterrent system: Other | 1.0 or less
3A | Power supply (rear wiper) | R.WIP 10 A fuse | Ignition switch is ON position. | B+ | • R.WIP 10 A fuse • Battery
3B | Turn light (RH) signal output | Instrument cluster | Turn switch (RH) is ON | Alternates between 1.0 or less and B+ | • Related wiring harnesses
Turn switch is OFF | 1.0 or less
3C | Rear washer switch signal | Rear washer switch | Rear washer switch is ON | 1.0 or less | • Rear washer switch • Related wiring harnesses
Rear washer switch is OFF | B+
3D | Turn light (LH) signal output | Instrument cluster | Turn switch (LH) is ON | Alternates between 1.0 or less and B+ | • Related wiring harnesses
Turn switch is OFF | 1.0 or less
3E | Ignition key illumination control | Ignition key illumination | Ignition switch off and driver-side door opened. | 1.0 or less | • Ignition key illumination • Related wiring harnesses
15 s or more after driver-side door closed. | B+
3F | Power supply | A/C 10 A fuse | Ignition switch is ON position. | B+ | • A/C 10 A fuse • Battery
3G | Power supply | D/L 30 A fuse | Under any condition | B+ | • D/L 30 A fuse • Battery
3H | Headlight leveling (manual) GND | Headlight leveling switch | Under any condition: Inspect for continuity to headlight leveling switch. | Continuity detected | • Related wiring harnesses
3I | Power supply (PAD) | PAD indicator light | PAD cut-off switch is ON position. | B+ | • R.WIP 10 A fuse • Battery
Other | 1.0 or less
3J | Power supply | ROOM 15 A fuse | Under any condition | B+ | • ROOM 15 A fuse • Battery
3K | Back-up light switch signal | Car-navigation unit | Back-up light switch is ON | B+ | • Related wiring harnesses
Back-up light switch is OFF | 1.0 or less
3L | Power supply | METER 15 A fuse | Ignition switch is ON position. | B+ | • METER 15 A fuse • Battery
4A | Power supply | SAS 10 A fuse | Ignition switch is ON position. | B+ | • SAS 10 A fuse • Battery
4B | Power supply (headlight leveling switch) | Headlight leveling switch | TNS switch is ON. | B+ | • Related wiring harnesses
4C | Turn switch input (LH) | Turn switch | Turn switch at left position | 1.0 or less | • Turn switch • Related wiring harnesses
Other | B+
4D | Security light signal | Instrument cluster | Under any condition: Inspect for continuity to Instrument cluster. | Continuity detected | • Related wiring harnesses
4E | Turn switch input (RH) | Turn switch | Turn switch at right position | 1.0 or less | • Turn switch • Related wiring harnesses
Other | B+
4F | Horn switch input | Horn switch | Horn switch is ON | 1.0 or less | • Horn switch • Related wiring harnesses
Other | B+
4G | Hazard switch input | Hazard switch | Hazard switch is ON | 1.0 or less | • Hazard switch • Related wiring harnesses
Other | B+
4H | Vehicle speed signal output | • Audio unit • Wiper switch (without auto wiper) • Auto light-off control module • Car-navigation unit | Under any condition: Inspect for continuity to related module. | Continuity detected | • Related wiring harnesses
4I | Rear wiper (INT) switch signal | Rear wiper switch | Rear wiper switch is INT position. | 1.0 or less | • Rear wiper switch • Related wiring harnesses
Rear wiper switch is OFF | B+
4J | CAN_L | - | Because this terminal is for communication, good/no good judgment by terminal voltage is not possible. | - | • Related wiring harnesses
4K | Rear wiper switch signal | Rear wiper switch | Rear wiper switch is ON position. | 1.0 or less | • Rear wiper switch • Related wiring harnesses
Rear wiper switch is OFF | B+
4L | CAN_H | - | Because this terminal is for communication, good/no good judgment by terminal voltage is not possible. | - | • Related wiring harnesses
4M | Door switch signal (driver-side) output | Instrument cluster | Door open (driver-side) (Door switch on) | 1.0 or less | • Door switch (driver-side) • Related wiring harnesses
Doors closed (driver-side) (Door switch off) | B+
4N | DLC-2 | DLC-2 | Under any condition: Inspect for continuity to DLC-2. | Continuity detected | • Related wiring harnesses
4O | Door switch signal (except driver-side) output | Instrument cluster | Door open (except driver-side) (Door switch on) | 1.0 or less | • Door switch (except driver-side) • Related wiring harnesses
Doors closed (except driver-side) (Door switch off) | B+
4P | Key reminder switch signal | • Steering lock unit (with advanced keyless system) • Ignition switch (with keyless entry system) | Key inserted | B+ | • Steering lock unit (with advanced keyless system) • Ignition switch (with keyless entry system) • Related wiring harnesses
Key removed | 1.0 or less
5A | Fuel level signal 2 input | Fuel gauge sender unit | Under any condition: Inspect for continuity to fuel gauge sender unit. | Continuity detected | • Related wiring harnesses
5B | Fuel level signal 1 input | Fuel gauge sender unit | Under any condition: Inspect for continuity to fuel gauge sender unit. | Continuity detected | • Related wiring harnesses
5C | Woofer signal 1 | Audio amplifier | Under any condition: Inspect for continuity to audio amplifier. | Continuity detected | • Related wiring harnesses
5D | Woofer signal 2 | Audio amplifier | Under any condition: Inspect for continuity to audio amplifier. | Continuity detected | • Related wiring harnesses
5E | Woofer GND | GND | Under any condition: Inspect for continuity to GND. | Continuity detected | • Related wiring harnesses
6A | Door unlock control | Door lock actuator | Door lock actuator unlocking | 1.0 or less → B+ → 1.0 or less | • Door lock actuator • Related wiring harnesses
Other | 1.0 or less
6B | Door lock control | Door lock actuator | Door lock actuator locking | 1.0 or less → B+ → 1.0 or less | • Door lock actuator • Related wiring harnesses
Other | 1.0 or less
6D | GND (headlight leveling switch) | GND | Under any condition: Inspect for continuity to GND. | Continuity detected | • Related wiring harnesses
6F | Courtesy light control | Courtesy light | Within 5 min after any door is opened. | 1.0 or less | • Courtesy light • Related wiring harnesses
5 min or more after any door is opened. | B+
All doors closed | B+
6G | Double lock control | Door lock actuator | Lock actuator double-locking (Transmitter LOCK button pressed twice within 5 s) | 1.0 or less → B+ → 1.0 or less | • Door lock actuator • Related wiring harnesses
Other | 1.0 or less
6H | Courtesy light power supply | Courtesy light | Under any condition | B+ | • Courtesy light • Related wiring harnesses
6I | Power supply | • Position memory control module • Rain sensor • Power window main switch 4WD control module | Ignition switch is ON position. | B+ | • Related wiring harnesses
6J | Brake signal | Brake switch | Stop light switch is ON | B+ | Brake switch
Stop light switch is OFF | 1.0 or less
7A | Signal GND | GND | Under any condition: Inspect for continuity to GND. | Continuity detected | • Related wiring harnesses
7B | Door switch signal (driver-side) | Door switch (driver-side) | Door open (driver-side) (Door switch on) | 1.0 or less | • Door switch (driver-side) • Related wiring harnesses
Doors closed (driver-side) (Door switch off) | B+
7C | Lock input (Driver-side door lock-link switch) | Driver-side door lock-link switch | Driver-side door locked | 1.0 or less | • Driver-side door lock-link switch • Related wiring harnesses
Driver-side door unlocked | 5
7D | Door switch signal (RR) | Door switch (RR) | Door open (RR) (Door switch on) | 1.0 or less | • Door switch (RR) • Related wiring harnesses
Doors closed (RR) (Door switch off) | B+
7E | Unlock input (Driver-side door lock-link switch) | Driver-side door lock-link switch | Driver-side door locked | 5 | • Driver-side door lock-link switch • Related wiring harnesses
Driver-side door unlocked | 1.0 or less
7F | Door switch signal (passenger-side) | Door switch (passenger-side) | Door open (passenger-side) (Door switch on) | 1.0 or less | • Door switch (passenger-side) • Related wiring harnesses
Doors closed (passenger-side) (Door switch off) | B+
7G | Unlock input (except driver-side door lock-link switch) | Driver-side door lock-link switch | Except driver-side door locked | 5 | • Except driver-side door lock-link switch • Related wiring harnesses
Except driver-side door unlocked | 1.0 or less
7H | Key reminder switch signal output | Keyless control module (with advanced keyless system) | Key inserted | B+ | • Related wiring harnesses
Key removed | 1.0 or less
7I | Keyless control module communication | Keyless control module | Under any condition: Inspect for continuity to keyless control module. | Continuity detected | • Related wiring harnesses
7J | Lock/unlock input | Driver-side door key cylinder switch | At the moment key cylinder is locked | 2.5 | • Driver-side door key cylinder switch • Related wiring harnesses
At the moment key cylinder is unlocked | 1.0 or less
At the moment key cylinder is neutral position | 5
7K | Intruder sensor signal | Intruder sensor (front) | Theft-deterrent system pre-arming, arming, or alarm | B+ | • Intruder sensor (front) • Related wiring harnesses
Intruder sensor detects intrusion | B+ → 1.0 or less → B+
Theft-deterrent system: Other | 1.0 or less
7L | Intruder sensor (front) power supply | Intruder sensor (front) | Theft-deterrent system pre-arming or arming | B+ | • Intruder sensor (front) • Related wiring harnesses
Other | 1.0 or less
7N | SAS control module signal | SAS control module | Under any condition: Inspect for continuity to SAS control module. | Continuity detected | • Related wiring harnesses
7O | Power window main switch communication | Power window main switch | Under any condition: Inspect for continuity to power window main switch. | Continuity detected | • Related wiring harnesses
7P | CAN_H | - | Because this terminal is for communication, good/no good judgment by terminal voltage is not possible. | - | • Related wiring harnesses
7Q | Position memory control module communication | Position memory control module | Under any condition: Inspect for continuity to position memory control module. | Continuity detected | • Related wiring harnesses
7R | CAN_L | - | Because this terminal is for communication, good/no good judgment by terminal voltage is not possible. | - | • Related wiring harnesses
7T | Vehicle speed signal output | Position memory control module | Under any condition: Inspect for continuity to power window main switch. | Continuity detected | • Related wiring harnesses
7U | Power supply | SAS control module | Ignition switch is ON position. | B+ | • Related wiring harnesses
8A | Power GND | GND | Under any condition: Inspect for continuity to GND. | Continuity detected | • Related wiring harnesses
8B | Power supply | • Auto leveling control module • TCM • Back-up light switch • Cooling fan relay • HO2S 4WD control module | Ignition switch is ON position. | B+ | • Related wiring harnesses
8C | Brake signal output | PCM | Stop light switch is ON | B+ | Brake switch
Stop light switch is OFF | 1.0 or less
8D | Brake signal output (MZR-CD (RF-Turbo)) | • ABS HU/CM • DSC HU/CM • TCM | Stop light switch is ON | B+ | Brake switch
Stop light switch is OFF | 1.0 or less
8F | Power supply | • ABS HU/CM • DSC HU/CM | Ignition switch is ON position. | B+ | • Related wiring harnesses
8H | Front turn light (RH) control | Front turn light (RH) | Turn switch (RH) is ON | Alternates between 1.0 or less and B+ | • Front turn light (RH) • Related wiring harnesses
Turn switch is OFF | 1.0 or less
8J | Front turn light (LH) control | Front turn light (LH) | Turn switch (LH) is ON | Alternates between 1.0 or less and B+ | • Front turn light (LH) • Related wiring harnesses
Turn switch is OFF | 1.0 or less
8K | Power supply | HAZARD 10 A fuse | Under any condition | B+ | • HAZARD 10 A fuse • Battery
8L | Power supply | A/C relay | Ignition switch is ON position. | B+ | • Related wiring harnesses
8M | Bonnet switch signal | Bonnet switch | Bonnet open (Bonnet switch off) | B+ | • Bonnet switch • Related wiring harnesses
Bonnet closed (Bonnet switch on) | 1.0 or less
8N | Rear washer motor control | Rear washer motor | Rear washer switch is ON | 1.0 or less | • Rear washer switch • Rear washer motor • Related wiring harnesses
Rear washer switch is OFF | B+
8P | Back-up switch signal input | • Back-up light switch (MTX) • TR switch (ATX) | Shift to reverse | B+ | • Back-up light switch (MTX) • TR switch (ATX) • Related wiring harnesses
Other | 1.0 or less
9A | CAN_L | - | Because this terminal is for communication, good/no good judgment by terminal voltage is not possible. | - | • Related wiring harnesses
9B | Vehicle speed signal input | • ABS HU/CM • DSC HU/CM | Under any condition: Inspect for continuity to ABS HU/CM or DSC HU/CM. | Continuity detected | • Related wiring harnesses
9C | CAN_L | - | Because this terminal is for communication, good/no good judgment by terminal voltage is not possible. | - | • Related wiring harnesses
9D | CAN_L | - | Because this terminal is for communication, good/no good judgment by terminal voltage is not possible. | - | • Related wiring harnesses
9E | CAN_H | - | Because this terminal is for communication, good/no good judgment by terminal voltage is not possible. | - | • Related wiring harnesses
9F | CAN_H | - | Because this terminal is for communication, good/no good judgment by terminal voltage is not possible. | - | • Related wiring harnesses
9G | CAN_H | - | Because this terminal is for communication, good/no good judgment by terminal voltage is not possible. | - | • Related wiring harnesses
9H | Check connector | Check connector | Under any condition: Inspect for continuity to Check connector. | Continuity detected | • Related wiring harnesses
9J | Horn relay control | Horn relay | Horn switch is ON | 1.0 or less | • Horn relay • Related wiring harnesses
Other | B+
9K | Power supply (headlight leveling switch) | Headlight leveling switch | TNS switch is ON. | B+ | • Related wiring harnesses
9L | Security light signal | PCM | Under any condition: Inspect for continuity to PCM. | Continuity detected | • Related wiring harnesses

  *1 :
5HB, WGN only
  *2 :
With immobilizer system

## FIG 1 (Inspection Using an Oscilloscope (Reference))

### Intruder sensor signal

  • Terminal connected: 5F (+)-Negative battery terminal
  • Oscilloscope setting: 2 V/DIV (Y): 100 ms/DIV (X), DC range
  • Measurement condition: Theft-deterrent system arming.