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 B+
• 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 B+
• 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