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RELAY BLOCK INSPECTION

id092100492700

1. Remove the relay block with the connector connected.

2. Measure the voltage at each terminal (other than terminals 1A and 2B).

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

3. Disconnect the relay block connector.

4. Verify that continuity at terminals 1A and 2B is as indicated in the Terminal Voltage Table (Reference).

  • If there is any malfunction, inspect the parts under "Inspection item (s)".

  - If the system does not work properly even though the parts or related wiring harnesses do not have any malfunction, replace the relay block.

## Terminal Voltage Table (Reference)

Ter-minal | Signal | Connected to | Test condition | Voltage (V)/Continuity | Inspection item (s)
--- | --- | --- | --- | --- | ---
1A | GND | Body GND | Under any condition: Inspect for continuity to ground. | Continuity | • GND
1B | ATX: TR switch input | TR switch | Shift the selector lever to R position. | B+ | • TR switch • Related wiring harness
Except above condition | 1.0 or less
MTX: Back-up light switch input | Back-up light switch | Shift the shift lever to R position. | B+ | • Back-up light switch • Related wiring harness
Except above condition | 1.0 or less
1C | Auto stop switch input | Windshield wiper motor (Auto stop switch) | Shift the lever so that the windshield wiper and washer switch is at the OFF position while the windshield wiper is operating. | 1.0 or less | • Windshield wiper motor • Related wiring harness
Except above condition | B+
1D | Parking light bulb output | Parking light bulb | Turn the light switch to the TNS or ON position. | B+ | • Parking light bulb • Related wiring harness
Turn the light switch to the OFF position. | 1.0 or less
1E | Rear washer motor output | Washer motor | Turn the rear wiper and washer switch to the washer position. | B+ | • Washer motor • Related wiring harness
Except above condition | 1.0 or less
1F | Front turn light (RH) output | • Front turn light (RH) • Front side turn light (RH) | Turn switch (RH) is on. | Alternates between 1.0 or less and VB | • Front turn light (RH) • Front side turn light (RH) • Related wiring harness
Hazard warning switch is on.
Except above condition | 1.0 or less
1G | Windshield washer motor output | Washer motor | Pull the lever so that the windshield wiper and washer switch is at the washer position. | B+ | • Washer motor • Related wiring harness
Except above condition | 1.0 or less
1H | Front turn light bulb (LH) output | • Front turn light bulb (LH) • Front side turn light bulb (LH) | Turn switch (LH) is on. | Alternates between 1.0 or less and VB | • Front turn light bulb (LH) • Front side turn light bulb (LH) • Related wiring harness
Hazard warning switch is on.
Except above condition | 1.0 or less
1I | Windshield wiper motor operation output | Front wiper motor (LO) | Turn the windshield wiper and washer switch to the LO position. | Windshield wiper motor operating | B+ | • Windshield wiper motor • Related wiring harness
Windshield wiper motor not operating | 1.0 or less
1J | Horn output | Horn | Push the horn switch on. | B+ | • Horn • Related wiring harness
Except above condition | 1.0 or less
1K | Windshield wiper motor (high) operation output | Windshield wiper motor (high) | Turn the windshield wiper and washer switch to the HI position. | Windshield wiper motor operating | B+ | • Windshield wiper motor • Related wiring harness
Windshield wiper motor not operating | 1.0 or less
1L | Power supply | STOP 15 A fuse | Under any condition | B+ | • STOP 15 A fuse • Related wiring harness
1M | Auto stop switch output | Windshield wiper motor (auto stop switch) | Shift the lever so that the windshield wiper and washer switch is at the OFF position while the windshield wiper is operating. | B+ | • Windshield wiper motor • Related wiring harness
Except above condition | 1.0 or less
1O | Power supply | BTN 25 A fuse | Under any condition | B+ | • BTN 25 A fuse • Related wiring harness
2A | IG 1 | WIPER 20 A fuse | Turn the ignition switch to the ON position. | B+ | • WIPER 20 A fuse • Related wiring harness
Turn the ignition switch to the ACC or LOCK position. | 1.0 or less
2B | Auto stop operation check | Windshield wiper and washer switch | Windshield wiper is not operating: Inspect for continuity to ground. | Continuity | • Windshield wiper motor • Related wiring harness
2C | IG 2 | R.WIP 10 A fuse | Turn the ignition switch to the ON position. | B+ | • R.WIP 10 A fuse • Related wiring harness
Turn the ignition switch to the ACC or LOCK position. | 1.0 or less
2D | Illumination light bulb output | Illumination light bulb | Turn the light switch to the TNS or ON position. | B+ | • ILLUMI 7.5 A fuse • Illumination light bulb • Related wiring harness
Turn the light switch to the OFF position. | 1.0 or less
2E | Rear washer switch output | Rear wiper and washer switch | Turn the rear wiper and washer switch to the washer position. | 1.0 or less | • Rear wiper and washer switch • Related wiring harness
Except above condition | B+
2F | Windshield wiper LO operation output | Windshield wiper and washer switch | Turn the windshield wiper and washer switch to the LO position. | Windshield wiper motor operating | 1.0 or less | • Windshield wiper and washer switch • Related wiring harness
Windshield wiper motor not operating | B+
2G | Windshield washer operation output | Windshield wiper and washer switch | Turn the windshield wiper and washer switch to the washer position. | 1.0 or less | • Windshield wiper and washer switch • Related wiring harness
Except above condition | B+
2H | Windshield wiper HI operation input | Windshield wiper and washer switch | Turn the windshield wiper and washer switch to HI position. | Windshield wiper motor operating | 1.0 or less | • Windshield wiper and washer switch • Related wiring harness
Windshield wiper motor not operating | B+
2J | Light switch (TNS) output | Light switch | Turn the light switch to the TNS or ON position. | 1.0 or less | • Light switch • Related wiring harness
Turn the light switch to the OFF position. | B+
2K | Rear wiper operation output | Rear wiper and washer switch | Turn the rear wiper and washer switch to the ON position | Rear wiper motor operating | 1.0 or less | • Rear wiper and washer switch • Related wiring harness
Rear wiper motor not operating | B+
2L | Horn switch output | Horn switch | Push the horn switch on. | 1.0 or less | • Horn switch • Related wiring harness
Except above condition | B+
2N | TNS input | TAIL 7.5 A fuse | Turn the light switch to the TNS or ON position. | B+ | • TAIL 7.5 A fuse • Related wiring harness
Turn the light switch to the OFF position. | 1.0 or less
2O | Flasher unit (RH) input | Flasher unit | Turn switch (RH) is on. | Alternates between 1.0 or less and B+ | • Flasher unit • Related wiring harness
Hazard warning switch is on.
Except above condition | 1.0 or less
2P | Flasher unit (LH) input | Flasher unit | Turn switch (LH) is on. | Alternates between 1.0 or less and B+ | • Flasher unit • Related wiring harness
Hazard warning switch is on.
Except above condition | 1.0 or less
3B | Rear turn light bulb (LH) output | Rear turn light bulb (LH) | Turn switch (LH) is on. | Alternates between 1.0 or less and B+ | • Rear turn light bulb (LH) • Related wiring harness
Hazard warning switch is on.
Except above condition | 1.0 or less
3C | Rear turn light bulb (RH) output | Rear turn light bulb (RH) | Turn switch (RH) is on. | Alternates between 1.0 or less and B+ | • Rear turn light bulb (RH) • Related wiring harness
Hazard warning switch is on.
Except above condition | 1.0 or less
3H | Stop light switch output | Stop light switch | Under any condition | B+ | • Stop light switch • Related wiring harness
3I | Rear wiper motor input | Rear wiper motor | Turn the rear wiper and washer switch to the ON position | Rear wiper motor operating | 1.0 or less | • Rear wiper motor • Related wiring harness
Rear wiper motor not operating | B+
3N | Taillight bulb and license plate light bulb output | • Taillight bulb • License plate light bulb | Turn the light switch to the TNS or ON position. | B+ | • Taillight bulb • License plate light bulb • Related wiring harness
Turn the light switch to the OFF position. | 1.0 or less
3O | Back-up light bulb output | Back-up light bulb | MTX: Shift the shift lever to R position. ATX: Shift the selector lever to R position. | B+ | • Back-up light bulb • Related wiring harness
Except above condition | 1.0 or less