Acura CSX. Manual — part 301

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１０

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−

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YES

NO

YES

NO

14-284

A/T Interlock System

PCM CONNECTOR B (44P)

ATPP (BLK/BLU)

ATPP (BLU/BLK)

TRANSMISSION RANGE
SWITCH CONNECTOR

TRANSMISSION RANGE
SWITCH CONNECTOR

GND (BLK)

31. Check for continuity between PCM connector

terminal B13 and transmission range switch
connector terminal No. 6.

Go to step 32.

Repair open in the wire between PCM

connector terminal B13 and the transmission range
switch connector.

32. Check for continuity between transmission range

switch connector terminal No. 10 and body ground.

Reconnect all connectors, then update the

PCM if it does not have the latest software
(see page 11-227), or substitute a known-good PCM
(see page 11-7), then recheck. If the symptom goes
away with a known-good PCM, replace the original
PCM (see page 11-228).

Repair open in the wire between transmission

range switch connector terminal No. 10 and body
ground (G101), or repair poor body ground
(G101).

Terminal side of
female terminals

Wire side of
female terminals

Wire side of female terminals

Is ther e continuity?

Is ther e continuity?

08/08/21 14:50:08 61SNR030_140_0286

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ＳＮＲ９ＡＡ１Ｅ１０４３６４３６０２１ＦＡＡＴ１０

−

−

−

−

−

−

YES

NO

YES

NO

YES

NO

14-285

14-285

Key Interlock System Circuit
Troubleshooting

STEERING LOCK ASSEMBLY
CONNECTOR

KEYSOL (BLU)

33. Check the APP SENSOR in the Data List with the

HDS. Do not press the accelerator.

Check the APP sensor (see page 11-268).

Reconnect all connectors, then update the

PCM if it does not have the latest software
(see page 11-227), or substitute a known-good PCM
(see page 11-7), then recheck. If the symptom goes
away with a known-good PCM, replace the original
PCM (see page 11-228).

SRS components are located in this area. Review the
SRS component locations (see page 24-11) and the
precautions and procedures (see page 24-13) before
doing repair or service.

1. Turn the ignition switch to ACCESSORY (I). The

shift lever must be in P.

2. Disconnect the steering lock assembly connector.

3. Check if the ignition switch can be turned to the

LOCK (0) position.

Go to step 4.

Replace the ignition key cylinder/steering lock

assembly (see page 17-14).

4. Turn the ignition switch to LOCK (0).

5. Move the shift lever out of P.

6. Check for continuity between steering lock

assembly connector terminal No. 3 and body
ground.

Repair short to body ground in the wire

between the key interlock solenoid and the
MICU.

Go to step 7.

7. Remove the shift lever assembly (see page 14-254).

Wire side of female terminals

Is the acceler ator pedal position sensor opening
11 % or above, or the sensor voltage 0.90 V or
above?

Can the ignition switch be tur ned to LOCK ( 0)?

Is ther e continuity?

08/08/21 14:50:08 61SNR030_140_0287

＊０１

ＳＮＲ９ＡＡ１Ｅ１０４３６４３６０２１ＦＡＡＴ１０

−

−

−

−

−

−

YES

NO

YES

NO

YES

NO

14-285

14-285

Key Interlock System Circuit
Troubleshooting

STEERING LOCK ASSEMBLY
CONNECTOR

KEYSOL (BLU)

33. Check the APP SENSOR in the Data List with the

HDS. Do not press the accelerator.

Check the APP sensor (see page 11-268).

Reconnect all connectors, then update the

PCM if it does not have the latest software
(see page 11-227), or substitute a known-good PCM
(see page 11-7), then recheck. If the symptom goes
away with a known-good PCM, replace the original
PCM (see page 11-228).

SRS components are located in this area. Review the
SRS component locations (see page 24-11) and the
precautions and procedures (see page 24-13) before
doing repair or service.

1. Turn the ignition switch to ACCESSORY (I). The

shift lever must be in P.

2. Disconnect the steering lock assembly connector.

3. Check if the ignition switch can be turned to the

LOCK (0) position.

Go to step 4.

Replace the ignition key cylinder/steering lock

assembly (see page 17-14).

4. Turn the ignition switch to LOCK (0).

5. Move the shift lever out of P.

6. Check for continuity between steering lock

assembly connector terminal No. 3 and body
ground.

Repair short to body ground in the wire

between the key interlock solenoid and the
MICU.

Go to step 7.

7. Remove the shift lever assembly (see page 14-254).

Wire side of female terminals

Is the acceler ator pedal position sensor opening
11 % or above, or the sensor voltage 0.90 V or
above?

Can the ignition switch be tur ned to LOCK ( 0)?

Is ther e continuity?

08/08/21 14:50:08 61SNR030_140_0287

＊０２

＊０３

＊０４

−

−

−

−

−

−

YES

NO

YES

NO

YES

NO

14-286

A/T Interlock System

P-PIN (LT BLU)

PARK PIN SWITCH/
A/T GEAR POSITION INDICATOR
PANEL LIGHT CONNECTOR

P-PIN (BLK)

GND (WHT/BLK)

PARK PIN SWITCH/
A/T GEAR POSITION INDICATOR
PANEL LIGHT CONNECTOR

UNDER-DASH FUSE/RELAY BOX
CONNECTOR F (34P)

ATPP (GRN)

8. Check for continuity between park pin switch/A/T

gear position indicator panel light connector
terminal No. 3 and body ground.

Repair short to body ground in the wire

between park pin switch/A/T gear position indicator
panel light connector terminal No. 3 and the
MICU.

Go to step 9.

9. Shift the shift lever to P.

10. Check for continuity between park pin switch/A/T

gear position indicator panel light connector
terminals No. 3 and No. 4. Do not push the shift
lever button.

Faulty park pin switch, replace the park pin

switch (see page 14-269).

Go to step 11.

11. Disconnect under-dash fuse/relay box connector F

(34P).

12. Turn the ignition switch to ON (II).

13. Measure the voltage between the No. 27 terminal

of under-dash fuse/relay box connector F (34P) and
body ground.

Substitute a known-good MICU, and

recheck.

Repair or short in the wire between PCM

connector terminal B13, transmission range switch,
and MICU.

Wire side of female terminals

Terminal side of male terminals

Wire side of female terminals

Is ther e continuity?

Is ther e continuity?

Is ther e no voltage when the shif t lever is in P, and
is ther e voltage when the shif t lever shif ts out of
P?

08/08/21 14:50:08 61SNR030_140_0288