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Honda Ridgeline. Manual - part 571

−

０４

−

YES

24-109

SRS UNIT CONNECTOR A (28P)

14. Measure the resistance between the No. 15 and

No. 27 terminals of SRS unit connector A (28P).
There should be 0

1.0

Faulty left front impact sensor or SRS unit;

replace the left front impact sensor (see page
24-193). If the problem is still present, replace the
SRS unit (see page 24-188).

Poor connection at C301, open in left engine

compartment wire harness, or open in dashboard
wire harness. Inspect C301 (see page 22-26). If it is
OK, replace the faulty harness.

Wire side of female terminals

Is the r esistance as specif ied?

０１

ＳＪＣ８Ａ００Ｋ７９１０００Ｒ４２１ＸＦＡＡＴ００

−

DTC 42-1x (‘‘x’’ can be 0 thru 9 or A thru F):

Special Tools Required

YES

24-110

SRS

DTC Troubleshooting (cont’d)

SRS UNIT CONNECTOR A (28P)

No Signal from the Right Front Impact
Sensor

• SRS inflator simulator 07SAZ-TB4011A
• SRS simulator lead H 07YAZ-S3AA100

NOTE: Before doing this troubleshooting procedure,
review SRS Precautions and Procedures (see page
24-16) and General Troubleshooting Information
(see page 24-27).

1. Clear the DTC memory (see page 24-28).

2. Turn the ignition switch ON (II), and check that the

SRS indicator comes on for about 6 seconds and
then goes off.

Go to step 3.

Intermittent failure, the system is OK at this

time. Go to Troubleshooting Intermittent Failures
(see page 24-29). If another DTC is indicated,
troubleshoot the DTC.

3. Turn the ignition switch OFF. Check the

connections between SRS unit connector A (28P)
and the SRS unit, between the right engine
compartment wire harness 2P connector and the
right front impact sensor (see page 24-14), and at
connector C202 (see page 22-22).

Go to step 4.

Repair the poor connections and retest. If DTC

42-1x is still present, go to step 4.

4. Disconnect the negative cable from the battery, and

wait for 3 minutes.

5. Disconnect the right engine compartment wire

harness 2P connector (A) from the right front
impact sensor.

6. Disconnect SRS unit connector A (28P) from the

SRS unit (see step 7 on page 24-26).

7. Measure the resistance between the No. 16 and

No. 28 terminals of SRS unit connector A (28P).
There should be an open circuit or at least 1 M

Go to step 8.

Short in the right engine compartment wire

harness or dashboard wire harness; replace the
faulty harness.

Wire side of female terminals

Does the SRS indicator stay on, and is DT C 42-1x
indicated?

Ar e the connections OK ?

Is the r esistance as specif ied?

０２

０３

０５

−

YES

24-111

SRS UNIT CONNECTOR A (28P)

07YAZ-S3AA100

07SAZ-TB4011A

8. Measure the resistance between the No. 16

terminal of SRS unit connector A (28P) and body
ground, and between the No. 28 terminal and body
ground. There should be an open circuit or at least
1 M

Go to step 9.

Short to ground in the dashboard wire

harness or the right engine compartment wire
harness; replace the faulty harness.

9. Reconnect the negative cable to the battery.

10. Turn the ignition switch ON (II).

11. Measure the voltage between the No. 16 terminal

of SRS unit connector A (28P) and body ground,
and between the No. 28 terminal and body ground.
There should be 1 V or less.

Go to step 12.

Short to power in the right engine

compartment wire harness or dashboard wire
harness; replace the faulty harness.

12. Turn the ignition switch OFF.

13. Connect the SRS inflator simulator (jumper

connector) and simulator lead H to the right engine
compartment wire harness 2P connector (A).

(cont’d)

Wire side of female terminals

Is the r esistance as specif ied?

Is the voltage as specif ied?

−

０４

ＳＪＣ８Ａ００Ｋ７９１０００Ｒ４１２ＸＦＡＡＴ０１

−

YES

DTC 41-2x, 41-3x, 41-Bx (‘‘x’’ can be 0 thru 9
or A thru F):

DTC 42-2x, 42-3x, 42-Bx (‘‘x’’ can be 0 thru 9
or A thru F):

24-112

SRS

DTC Troubleshooting (cont’d)

SRS UNIT CONNECTOR A (28P)

14. Measure the resistance between the No. 16 and

No. 28 terminals of SRS unit connector A (28P).
There should be 0

1.0

Faulty right front impact sensor or SRS unit;

replace the right front impact sensor (see page
24-193). If the problem is still present, replace the
SRS unit (see page 24-188).

Poor connection at C202, open in the right

engine compartment wire harness, or open in the
dashboard wire harness. Inspect C202 (see page
22-22). If it is OK, replace the faulty harness.

NOTE: Before doing this troubleshooting procedure,
review SRS Precautions and Procedures (see page
24-16).

1. Clear the DTC memory (see page 24-28).

2. Turn the ignition switch ON (II), and check that the

SRS indicator comes on for about 6 seconds and
then goes off.

Replace the left or right front impact sensor

(see page 24-193). If the DTC returns, replace the
SRS unit (see page 24-188).

Intermittent failure, the system is OK at this

time. Go to Troubleshooting Intermittent Failures
(see page 24-29). If another DTC is indicated, go to
the DTC Troubleshooting Index.

Internal Failure of the Left Front

Impact Sensor

Internal Failure of Right Front

Impact Sensor

Wire side of female terminals

Is the r esistance as specif ied?

Does the SRS indicator stay on, and is DT C 41-2x,
41-3x, 41-Bx, 42-2x, 42-3x, or 42-Bx indicated?

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