Content .. 20 21 22 23 ..

Acura RSX Honda Integra. Manual - part 22

＊０１

Ｓ６Ｍ６ＡＺＨＡ２６１００００００００ＥＡＡＴ００

2005-2006 Models

4-24

Ignition System

Circuit Diagram (cont’d)

No. 6 (20 A)

BATTERY

UNDER-HOOD FUSE/RELAY BOX

No. 19 (100 A)

IGNITION
COIL
RELAY

No. 31 (15 A)

BLK/WHT

YEL/GRN

BLK/WHT

BLK

No. 1

BLK

BLK/WHT

BLU/RED

No. 2

No. 4

BRN

BLK/WHT

ICM

BLK

BLK/WHT

WHT/BLU

No. 3

ICM: Ignition Control Module

ECM/PCM

G101

ICM

IGPLS4

RED/YEL

BLU

UNDER-DASH
FUSE/RELAY
BOX

BLU

MRLY

IGNITION
COILS

SPARK
PLUGS

IGPLS3

IGPLS2

IGPLS1

０１

Ｓ６Ｍ６Ａ００Ａ２６１００００００００ＭＡＡＴ００

Ignition Timing
M/T: 8°

2° BTDC (RED mark (B)) during idling

in neutral

A/T:

8°

2° BTDC (RED mark (B)) during idling

in P or N

4-25

Ignition Timing Inspection

1. Connect the Honda Diagnostic System (HDS) to the

data link connector (DLC) (see step 2 on page 11-3),
and check for DTCs. If a DTC is present, diagnose
and repair the cause before inspecting the ignition
timing.

2. Start the engine. Hold the engine speed at 3,000

rpm without load (in Park or Neutral) until the
radiator fan comes on, then let it idle.

3. Check the idle speed (see page 11-348).

4. Select ‘‘SCS’’ mode using the HDS.

5. Connect the timing light to the service loop.

6. Aim the light toward the pointers (A) on the cam

chain case. Check the ignition timing under a no
load condition (headlights, blower fan, rear window
defogger, and air conditioner are turned off).

7. If the ignition timing differs from the specification,

check the cam timing. If the cam timing is OK,
update the engine control module (ECM)/
powertrain control module (PCM) if it does not
have the latest software (see page 11-6), or
substitute a known-good ECM/PCM (see page 11-7),
then recheck. If the system works properly, and the
ECM/PCM was substituted, replace the original
ECM/PCM (see page 11-284).

8. Turn the ignition switch OFF.

9. Disconnect the HDS and the timing light.

＊０１

Ｓ６Ｍ６Ａ００Ａ２６１０００３４１０１ＫＤＡＴ００

＊０１

Ｓ６Ｍ６ＡＺＨＡ２６１０００３４１１２ＦＡＡＴ００

−

2005-2006 Models

YES

4-26

Ignition System

Ignition Coil Removal/Installation

Ignition Coil Relay Circuit
Troubleshooting

6 x 1.0 mm
12 N·m (1.2 kgf·m, 8.7 lbf·ft)

6 x 1.0 mm
12 N·m
(1.2 kgf·m,
8.7 lbf·ft)

IGNITION COIL RELAY 4P SOCKET

1. Remove the ignition coil cover (A), disconnect the

ignition coil connectors (B), then remove the
ignition coils (C).

2. Install the ignition coils in the reverse order of

removal.

1. Check the No. 31 (15 A) fuse in the under-dash fuse/

relay box.

Go to step 2.

Replace the fuse.

2. Remove the ignition coil relay from the under-dash

fuse/relay box, and test it (see page 22-62).

Go to step 3.

Replace the ignition coil relay.

3. Measure the voltage between ignition coil relay 4P

socket terminal No. 1 and body ground, and
between terminal No. 4 and body ground.

Go to step 4.

Replace the under-dash fuse/relay box.

Terminal side of female terminals

Is the f use OK ?

Is the r elay OK ?

Is ther e batter y voltage?

＊０２

＊０３

＊０４

＊０５

−

YES

2002-2004 models

2005-2006 models

YES

4-27

No.1 IGNITION COIL 3P CONNECTOR

IGNITION COIL RELAY 4P SOCKET

ECM/PCM
CONNECTOR E (31P)

MRLY (BLK/WHT)

IGNITION COIL RELAY 4P SOCKET

ECM/PCM
CONNECTOR E (31P)

MRLY (BLK/WHT)

4. Check for continuity between ignition coil relay 4P

socket terminal No. 2 and the No. 1, No. 2, No. 3
and No. 4 ignition coil 3P connector terminal No. 3.

Go to step 5.

Repair an open in the wire between ignition

coil relay 4P socket terminal No. 2 and ignition coil
3P connector terminal No. 3.

5. Connect the Honda Diagnostic System (HDS) to the

data link connector (DLC) (see step 2 on page 11-3).
Turn the ignition switch ON (II), and jump the SCS
line with the HDS, then turn the ignition switch OFF.

NOTE: This step must be done to protect the engine
control module (ECM)/ powertrain control module
(PCM) from damage.

6. Disconnect ECM/PCM connector E (31P).

7. Check for continuity between ignition coil relay 4P

socket terminal No. 3 and body ground.

Repair a short in the wire between ignition

coil relay 4P socket terminal No. 3 and the ECM/
PCM.

Go to step 8.

8. Check for continuity between ignition coil relay 4P

socket terminal No. 3 and ECM/PCM connector
terminal E7.

The system is OK at this time. Check for

loose or poor connections at the ignition coil relay
and the ECM/PCM (E7).

Repair an open in the wire between ignition

coil relay 4P socket terminal No. 3 and the ECM/
PCM (E7).

Terminal side of
female terminals

Wire side of
female terminals

Terminal side of female terminals

Terminal side of
female terminals

Wire side of female terminals

Terminal side of
female terminals

Wire side of female terminals

Is ther e continuity?

Content .. 20 21 22 23 ..