Honda Ridgeline. Manual — part 307

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Symptom

Diagnostic procedure

Also check for

18-53

Symptom Troubleshooting Index

Low tire pressure and tire indicators do not
come on, and no DTCs are stored

Symptom Troubleshooting (see page 18-80)

Low tire pressure and tire indicators do not
go off, and no DTCs are stored

Symptom Troubleshooting (see page 18-81)

TPMS indicator does not come on, and no
DTCs are stored

Symptom Troubleshooting (see page 18-82)

TPMS indicator does not go off, and no
DTCs are stored

Symptom Troubleshooting (see page 18-83)

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−

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０１

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TPMS Control Unit Inputs and Outputs for Connector A (14P)

Terminal

number

Wire color

Terminal sign

(Terminal name)

Description

Measurement

Terminal

Conditions

Voltage

18-54

TPMS

System Description

1

RED/WHT

B (Battery

positive)

Power source for
the TPMS control
unit

1

GND

At all times

Battery
voltage

3

BLK

GND (Ground)

Ground for the
TPMS control unit

3

GND

At all times

Less than
0.1 V

5

YEL

IG1 (Ignition 1)

Power source for
activating the
system

5

GND

Ignition switch ON (II)

Battery
voltage

Ignition switch OFF

Less than
0.1 V

8

YEL/BLU

LF LF PWR.
(LF low
frequency
power)

Power source for
the left-front
initiator

8

GND

For 5 seconds with
ignition switch ON (II)

About 7 V

After 5 seconds with
ignition switch ON (II)

9

BLU

RF LF PWR.
(RF low
frequency
power)

Power source for
the right-front
initiator

9

GND

For 5 seconds with
ignition switch ON (II)

About 7 V

After 5 seconds with
ignition switch ON (II)

10

GRN/BLU

LR LF PWR.
(LR low
frequency
power)

Power source for
the left-rear
initiator

10

GND

For 5 seconds with
ignition switch ON (II)

About 7 V

After 5 seconds with
ignition switch ON (II)

11

BLU

RR LF PWR.
(RR low
frequency
power)

Power source for
the right-rear
initiator

11

GND

For 5 seconds with
ignition switch ON (II)

About 7 V

After 5 seconds with
ignition switch ON (II)

Wire side of female terminals

−

−

−

−

−

−

−

−

―――

―――

―――

―――

０２

TPMS Control Unit Inputs and Outputs for Connector B (20P)

Terminal

number

Wire color

Terminal sign

(Terminal name)

Description

Measurement

Terminal

Conditions

Voltage

18-55

1

GRY/YEL

RF LF SIG.
(RF low
frequency
signal)

Detects the signal
from the right-front
initiator

1

GND

For the first 5 seconds
after turning the
ignition switch ON (II)

Pulses
0

2 V

With ignition switch
ON (II) for more than
5 seconds

Less than
0.1 V

2

GRY/YEL

RR LF SIG.
(RR low
frequency
signal)

Detects the signal
from the right-rear
initiator

2

GND

For the first 5 seconds
after turning the
ignition switch ON (II)

Pulses
0

2 V

With ignition switch
ON (II) for more than
5 seconds

Less than
0.1 V

3

ORN

LF LF SIG.
(LF low
frequency
signal)

Detects the signal
from the left-front
initiator

3

GND

For the first 5 seconds
after turning the
ignition switch ON (II)

Pulses
0

2 V

With ignition switch
ON (II) for more than
5 seconds

Less than
0.1 V

4

PNK/BLK

LR LF SIG.
(LR low
frequency
signal)

Detects the signal
from the left-rear
initiator

4

GND

For the first 5 seconds
after turning the
ignition switch ON (II)

Pulses
0

2 V

With ignition switch
ON (II) for more than
5 seconds

Less than
0.1 V

9

LT BLU

K-LINE
(Data link
connector)

Communications
with HDS

10

RED

CAN L
(CAN
communication
signal low)

Sends the
communication
signal

Ignition switch ON (II)

Pulses

(cont’d)

Wire side of female terminals

−

−

−

−

―――

０３

TPMS Control Unit Inputs and Outputs for Connector B (20P)

Terminal

number

Wire color

Terminal sign

(Terminal name)

Description

Measurement

Terminal

Conditions

Voltage

18-56

TPMS

System Description (cont’d)

13

GRN

LF LF GND
(LF low
frequency
ground)

Ground for the
left-front initiator

13

GND

Ignition switch ON (II)

Less than
0.1 V

14

RED/BLK

RF LF GND
(RF low
frequency
ground)

Ground for the
right-front initiator

14

GND

Ignition switch ON (II)

Less than
0.1 V

15

YEL/GRN

LR LF GND
(LR low
frequency
ground)

Ground for the
left-rear initiator

15

GND

Ignition switch ON (II)

Less than
0.1 V

16

RED/ORN

RR LF GND
(RR low
frequency
ground)

Ground for the
right-rear initiator

16

GND

Ignition switch ON (II)

Less than
0.1 V

19

WHT

CAN H
(CAN
communication
signal high)

Sends the
communication
signal

Ignition switch ON (II)

Pulses

Wire side of female terminals