Acura RSX Honda Integra. Manual — part 17
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4-5
Circuit Diagram
IGNITION SWITCH
BAT
ST
No. 19 (100 A)
BATTERY
UNDER-HOOD FUSE/RELAY BOX
LT GRN
BLK/WHT
BLK/WHT
BLK
S
B
WHT
SOLENOID
M
B
S
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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−
−
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−
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Recommended Procedure
YES
NO
YES
NO
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?
02
01
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−
−
−
−
−
K20A3 engine
K20A2, K20Z1 engines
YES
NO
YES
NO
YES
NO
4-7
B
A
A
B
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?
01
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K20A2, K20Z1 Engines
4-8
4-8
Starting System
Clutch Interlock Switch Test
Starter Solenoid Test
A
Terminal
Clutch Interlock Switch
PRESSED
RELEASED
2
1
S
M
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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