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Acura RSX Honda Integra. Manual - part 17

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4-5

Circuit Diagram

IGNITION SWITCH

BAT

No. 19 (100 A)

BATTERY

UNDER-HOOD FUSE/RELAY BOX

LT GRN

BLK/WHT

BLK

WHT

SOLENOID

ST HOT in START (III)

No. 20*

CLUTCH INTERLOCK SWITCH
(M/T)
(ON: Pedal pressed)

TRANSMISSION
RANGE SWITCH (A/T)
(ON: P, N)

STARTER
(K20A2, K20Z1 engines)

STARTER
(K20A3 engine)

STARTER
CUT
RELAY

UNDER-DASH
FUSE/RELAY
BOX

A/T: G101
M/T: G402

BLK/YEL

* No. 20 (40 A): USA model

No. 20 (50 A): Canada model

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Recommended Procedure

YES

Alternate Procedure

4-6

Starting System

Starter Circuit Troubleshooting

NOTE:

• Air temperature must be between 59 and 100 ° F (15

and 38 ° C) during this procedure.

• On 2002-2004 models: After this inspection, or any

subsequent repair, reset the engine control module
(ECM)/powertrain control module (PCM) to clear any
diagnostic trouble codes (DTCs) (see page 11-4).

• On 2005-2006 models: After this inspection, you must

select ECM/PCM reset using the Honda Diagnostic
System (HDS) (see page 11-4), otherwise the ECM/
PCM continues to stop the fuel injectors.

• The battery must be in good condition and fully

charged.

• If you disconnect the battery, do the ECM/PCM idle

learn procedure.
– 2002-2004 models (see page 11-349)
– 2005-2006 models (see page 11-349)

• Use a starter system tester.
• Connect and operate the equipment in accordance

with the manufacturer’s instructions.

1. Hook up the following equipment:

• Ammeter, 0

400 A

• Voltmeter, 0

20 V (accurate within 0.1 V)

• Tachometer, 0

1,200 rpm

2. 2002-2004 models: Remove the No. 17 (15 A) fuse

from the under-dash fuse/relay box.
2005-2006 models: Connect the HDS to the data link
connector (DLC) (see step 2 on page 11-3). Turn the
ignition switch ON (II), then select PGM-FI,
INSPECTION, and then All INJECTORS OFF on the
HDS.

3. With the shift lever in N or P (A/T) or the clutch

pedal pressed (M/T), turn the ignition switch to
START (III).

The starting system is OK. Go to step 9.

Go to step 4.

4. Check the battery condition. Check electrical

connections at the battery, the negative battery
cable to body, the engine ground cables and the
starter for looseness and corrosion. Then try
cranking the engine again.

Repairing the loose connection corrected the

problem. The starting system is OK. Go to step 9.

Check the following:

• If the starter will not crank the engine at all, go to

step 5.

• If it cranks the engine erratically or too slowly, go

to step 7.

• If it won’t disengage from the flywheel or torque

converter ring gear when you release the key,
check the following:
– Solenoid plunger and switch malfunction
– Dirty drive gear or damaged overruning clutch

Did the star ter cr ank the engine nor mally?

Did the star ter cr ank the engine?

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K20A3 engine

K20A2, K20Z1 engines

YES

4-7

5. Make sure the transmission is in Neutral, then

disconnect the BLK/WHT wire (A) from the starter
solenoid S terminal (B). Connect a jumper wire
from the battery positive terminal to the solenoid
terminal.

Check the following items in the order listed

until you find the open circuit:

• The BLK/WHT wire and connectors between the

under-dash fuse/relay box and the ignition switch,
and between the under-dash fuse/relay box and
the starter.

• The ignition switch (see page 22-64).
• The transmission range switch and connector

(A/T) or the clutch interlock switch and connector
(M/T).

• The starter cut relay (see page 22-62).

Remove the starter, and repair or replace as

necessary.

6. While cranking the engine, check the cranking

voltage and current draw.

Go to step 7.

Replace the starter, or remove and

disassemble it, and check the following:

• Drag in the starter armature
• Shorted armature winding
• Excessive drag in engine

7. Check the engine speed while cranking the engine.

Go to step 9.

Replace the starter, or remove and

disassemble it, and check the following until you
find the cause:

• Open circuit in starter armature commutator

segments

• Excessively worn starter brushes
• Open circuit in commutator brushes
• Dirty or damaged helical splines or drive gear
• Faulty drive gear clutch

8. Remove the starter, and inspect its drive gear and

the flywheel or torque converter ring gear for
damage. Replace any damaged parts.

9. 2002-2004 models: Reinstall the No. 17 (15 A) fuse

in the under-dash fuse/relay box.
2005-2006 models: Select ECM/PCM reset
(see page 11-5) to stop the ALL INJECTORS OFF
function on the HDS.

Did the star ter cr ank the engine?

Is cr anking voltage gr eater than or equal to 8.5 V
( K 20A3 engine)/ 8.7 V ( K 20A2, K 20Z 1 engines)
and cur r ent dr aw less than or equal to 350 A
( K 20A3 engine)/ 230 A ( K 20A2, K 20Z 1 engines)?

Is the engine speed above 100 r pm?

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K20A2, K20Z1 Engines

4-8

Starting System

Clutch Interlock Switch Test

Starter Solenoid Test

Terminal

Clutch Interlock Switch

PRESSED

RELEASED

1. Disconnect the clutch interlock switch 2P connector.

2. Remove the clutch interlock switch (A).

3. Check for continuity between the terminals

according to the table.

• If the continuity is not as specified, replace the

clutch interlock switch.

• If OK, install clutch interlock switch and adjust

the clutch pedal height (see page 12-6).

1. Make sure you have the anti-theft codes for the

radio, then write down the customer’s radio station
presets.

2. Disconnect the nagative cable from the battery first,

then disconnect the positive cable.

3. Disconnect the S and M connectors from the starter

solenoid.

4. Check the hold-in coil for continuity between the

S terminal and the armature housing (ground).
There should be continuity.

• If there is continuity, go to step 5.
• If there is no continuity, replace the solenoid.

5. Check the pull-in coil for continuity between the S

terminal and M terminal . There should be
continuity.

• If there is continuity, the solenoid is OK.
• If there is no continuity, replace the solenoid.

6. Connect the positive cable to the battery first, and

then the nagative cable.

7. Enter the anti-theft codes for the radio, then enter

the customer’s radio station presets.

8. Set the clock.

9. K20A2 engine: Do the engine control module

(ECM)/powertrain control module (PCM) idel learn
procedure.

• 2002-2004 models (see page 11-349)
• 2005-2006 models (see page 11-349)

10. Do the power window control unit reset procedure

(see page 22-148).

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