2006 ACURA CSX relay

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10-26Fan Controls
Radiator Fan High Speed Circuit Troubleshooting
RADIATOR FAN RELAY 4P SOCKET
FAN CONTROL RELAY 5P SOCKET
JUMPER WIRE
RADIATOR FAN RELAY 4P SOCKET JUMPER WIRE
1. Check the No. 7 (20 A) fuse in the under-hood fuse/relay box and the No. 36 (10 A) fuse in the under-
dash fuse/relay box.
Reinstall the fuse(s), then go to step 2.
Replace the fuse(s), and recheck. If the fuse
continues to blow, locate and repair the short in the
circuit between the under-hood fuse/relay box and
the radiator fan motor, or between the under-dash
fuse/relay box connector terminal G12, the under-
hood fuse/relay box and the engine control module
(ECM)/powertrain control module (PCM).
2. Remove the radiator fan relay and the fan control relay from the under-hood fuse/relay box, and test
them (see page 22-70).
Go to step 3.
Replace the radiator fan relay and/or fan
control relay.
3. Measure the voltage between the radiator fan relay 4P socket terminal No. 1 and body ground.
Go to step 4.
Replace the under-hood fuse/relay box. 4. Connect fan control relay 5P socket terminals No. 1
andNo.2withajumperwire.
5. Connect radiator fan relay 4P socket terminals No. 1 and No. 2 with a jumper wire.
Go to step 10.
Go to step 6.
Terminal side of female terminals Terminal side of female terminals
Terminal side of female terminals
Ar e t he f uses OK ? Ar e t he r el ay s OK ?
Is there battery voltage? Does t he r ad i at or f an r un at hi gh speed ?
08/08/21 14:40:32 61SNR030_100_0026
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10-27
FAN CONTROL RELAY 5P SOCKET
RADIATOR FAN RELAY 4P SOCKET
RADIATOR FAN MOTOR 2P CONNECTOR BRN
6. Remove the jumper wires, then check for continuity
between fan control relay 5P socket terminal No. 2
and body ground.
Go to step 7.
Repair open in the wire between fan control
relay 5P socket terminal No. 2 and body ground.
7. Test the radiator fan motor (see page 10-5).
Go to step 8.
Replace the radiator fan motor (see page
10-19). 8. Check for continuity between radiator fan relay 4P
socket terminal No. 2 and radiator fan motor 2P
connector terminal No. 2.
Go to step 9.
Repair open in the wire between radiator fan
relay 4P socket terminal No. 2 and radiator fan
motor 2P connector terminal No. 2.
(cont’d)
Terminal side of female terminals Terminal side of female terminals
Wire side of female terminals
Is there continuity? I s t he mot or OK ? Is there continuity?
08/08/21 14:40:33 61SNR030_100_0027
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DYNOMITE -2009-

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10-28Fan Controls
Radiator Fan High Speed Circuit Troubleshooting (cont’d)
FAN CONTROL RELAY 5P SOCKET
RADIATOR FAN MOTOR 2P CONNECTOR RED RADIATOR FAN RELAY 4P SOCKET
9. Check for continuity between fan control relay 5P
socket terminal No. 1 and radiator fan motor 2P
connector terminal No. 1.
Check for poor connections or loose
terminals at the under-hood fuse/relay box, the
radiator fan motor, and body ground (G 301), then
go to step 1.
Repair open in the wire between fan control
relay 5P socket terminal No. 1 and radiator fan
motor 2P connector terminal No. 1. 10. Turn the ignition switch to ON (II).
11. Measure the voltage between radiator fan relay 4P
socket terminal No. 3 and body ground.
Go to step 12.
Repair open in the wire between the under-
dash fuse/relay box and the under-hood fuse/relay
box.
12. Turn the ignition switch to LOCK (0).
13. Connect the Honda Diagnostic System (HDS) to the data link connector (DLC) (see step 2 on page 11-3).
14. Turn the ignition switch to ON (II).
15. Make sure the HDS communicates with the vehicle and the ECM/PCM. If it does not communicate,
troubleshoot the DLC circuit (see page 11-204).
16. Jump the SCS line with the HDS, then turn the ignition switch to LOCK (0).
NOTE: This step must be done to protect the ECM/
PCMfromdamage.
17. Disconnect ECM/PCM connector A (44P).
Terminal side of female termianls
Wire side of female terminals Terminal side of female terminals
Is there continuity?
Is there battery voltage?
08/08/21 14:40:33 61SNR030_100_0028
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10-29
RADIATOR FAN RELAY 4P SOCKET
ECM/PCM CONNECTOR A (44P) PUR FAN CONTROL RELAY 5P SOCKET
18. Check for continuity between radiator fan relay 4P
socket terminal No. 4 and ECM/PCM connector
terminal A4.
Go to step 19.
Repair open in the wire between radiator fan
relay 4P socket terminal No. 4 and ECM/PCM
connector terminal A4. 19. Turn the ignition switch to ON (II).
20. Measure the voltage between fan motor control
relay 5P socket terminal No. 5 and body ground.
Go to step 21.
Repair open in the wire between the under-
dash fuse/relay box and the under-hood fuse/relay
box.
21. Turn the ignition switch to LOCK (0).
(cont’d)
Terminal side of female terminals
Terminal side of female terminals
Terminal side of female terminals
Is there continuity?Is there battery voltage?
08/08/21 14:40:34 61SNR030_100_0029
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10-30 Fan Controls
Radiator Fan High Speed Circuit Troubleshooting (cont’d)
FAN CONTROL RELAY 5P SOCKET
FANH (GRY)
ECM/PCM CONNECTOR A (44P)
22. Check for continuity between fan control relay 5P socket terminal No. 3 and ECM/PCM connector
terminal A5.
Update the ECM/PCM if it does not have the
latest software (see page 11-227), or substitute a
known-good ECM/PCM (see page 11-7), then
recheck. If the symptom goes away with a known-
good ECM/PCM, replace the original ECM/PCM
(see page 11-228).
Repair open in the wire between fan control
relay 5P socket terminal No. 3 and ECM/PCM
connector terminal A5.
Terminal side of female terminals
Terminal side of female terminals
Is there continuity?
08/08/21 14:40:34 61SNR030_100_0030
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How to Troubleshoot Circuits at the ECM/
PCM Connectors
11-6 Fuel and Emissions Systems
General Troubleshooting Information (cont’d)
A
D E
B
A
C A
B D
C
A
NOTE: The ECM/PCM overwrites data and monitors the
EVAP system for about 30 minutes after the ignition
switch is turned to LOCK (0) or ACC (I). Jumping the
SCS line after turning the ignition switch to LOCK (0) or
ACC (I) cancels this function. Disconnecting the ECM/
PCM during this function, without jumping the SCS line
first, can damage the ECM/PCM.
1. Make sure the ignition switch is turned to LOCK (0), then jump the SCS line with the HDS.
2. Remove the cover (A).
3. Lift up the under-hood fuse/relay box (D).
4. Remove the coolant reservoir (E). Disconnect ECM/ PCM connectors A, B, and C, and probe the
terminals from the terminal side of the connectors.
NOTE: ECM/PCM connectors A, B, and C have
symbols (A= , B= , C= ) embosed on them for
identification. 5. When diagnosis/troubleshooting is done at the
ECM/PCM connector, use the terminal test port (A)
above the terminal you need to check.
6. Connect one side of the patch cord’s terminals (A) to a commercially available digital multimeter (B),
and connect the other side cord’s terminals (C) to a
commercially available banana jack (Pomona
Electronics Tool No. 3563 or equivalent) (D).
7. Gently contact the pin probe (male) at the terminal test port from the terminal side. Do not force the
tips into the terminals.
 For accurate results, always use the pin probe (male).
 To prevent damage to the c onnector
terminals, do not insert test equipment
probes, paper clips, or other substitutes as
they can damage the terminals. Damaged
terminals cause a poor connection and an
incorrect measurement.
 Do not puncture the insulation on a wire. Punctures can cause poor or intermittent
electrical connections.
08/08/21 14:12:34 61SNR030_110_0006
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DTC
(MIL indication ) Two Drive Cycle
Detection Detection Item MIL Note
11-11
P0606 (0)
Engine Control Module (ECM)/Powertrain Control Module (PCM)
Processor Malfunction ON (see page 11-145)
P060A (131) Powertrain Control Module (PCM) (A/T System) Internal Control
Module Malfunction ON (see page 11-145)
P062F (131) Engine Control Module (ECM)/Powertrain Control Module (PCM)
Internal Control Module Keep Alive Memory (KAM) Error ON (see page 11-144)
P0630 (139) VIN Not Programmed or Mismatch ON (see page 11-146)
P0685 (135) Engine Control Module (ECM)/Powertrain Control Module (PCM)
Power Control Circuit/Internal Circuit Malfunction ON (see page 11-147)
P0720 (122) Output Shaft (Countershaft) Speed Sensor Circuit Malfunction ON (see page 11-148)
P0720 (122) Output Shaft (Countershaft) Speed Sensor Circuit Malfunction ON (see page 11-149)
P1009 (56) Variable Valve Timing Control (VTC) Advance Malfunction ON (see page 11-283)
P1109 (13) Barometric Pressure (BARO) Sensor Circuit Out of Range High ON (see page 11-152)
P1116 (86) Engine Coolant Temperature (ECT) Sensor 1 Circuit Range/
Performance Problem ON (see page 11-153)
P1128 (5) Manifold Absolute Pressure (MAP) Sensor Signal Lower Than
Expected ON (see page 11-155)
P1129 (5) Manifold Absolute Pressure (MAP) Sensor Signal Higher Than
Expected ON (see page 11-156)
P1157 (48) Air Fuel Ratio (A/F) Sensor (Sensor 1) AFS Circuit High Voltage ON (see page 11-157)
P1172 (61) Air Fuel Ratio (A/F) Sensor (Sensor 1) Circuit Out of Range High ON (see page 11-159)
P1297 (20) Electrical Load Detector (ELD) Circuit Low Voltage OFF (see page 11-160)
P1298 (20) Electrical Load Detector (ELD) Circuit High Voltage OFF (see page 11-162)
P1454 (91) Fuel Tank Pressure (FTP) Sensor Circuit Range/Performance Problem ON (see page 11-402)
P145C (90) Evaporative Emission (EVAP) System Purge Flow Malfunction ON (see page 11-404)
P1549 (34) Charging System High Voltage OFF (see page 11-164)
P1658 (40) Electronic Throttle Control System (ETCS) Control Relay ON
Malfunction ON (see page 11-241)
P1659 (40) Electronic Throttle Control System (ETCS) Control Relay OFF
Malfunction ON (see page 11-243)
P1683 (40) Throttle Valve Default Position Spring Performance Problem ON (see page 11-247)
P1684 (40) Throttle Valve Return Spring Performance Problem ON (see page 11-248)
P16BB (116) Alternator B Terminal Circuit Low Voltage OFF (see page 11-165)
P16BC (116) Alternator FR Terminal Circuit/IGP Circuit Low Voltage OFF (see page 11-166)
P2101 (40) Electronic Throttle Control System (ETCS) Malfunction ON (see page 11-249)
P2118 (40) Throttle Actuator Current Range/Performance Problem ON (see page 11-251)
P2122 (37) Accelerator Pedal Position (APP) Sensor A (Throttle Position (TP)
Sensor D) Circuit Low Voltage ON (see page 11-253)
P2123 (37) Accelerator Pedal Position (APP) Sensor A (Throttle Position (TP)
Sensor D) Circuit High Voltage ON (see page 11-256)
P2127 (37) Accelerator Pedal Position (APP) Sensor B (Throttle Position (TP)
Sensor E) Circuit Low Voltage ON (see page 11-257)
P2128 (37) Accelerator Pedal Position (APP) Sensor B (Throttle Position (TP)
Sensor E) Circuit High Voltage ON (see page 11-260)
P2135 (7) Throttle Position (TP) Sensor A/B Incorrect Voltage Correlation ON (see page 11-262)
P2138 (37) Accelerator Pedal Position (APP) Sensor A/B (Throttle Position (TP)
Sensor D/E) Incorrect Voltage Correlation ON (see page 11-264)
P2176 (40) Throttle Actuator Control System Idle Position Not Learned ON (see page 11-266)
P2183 (192) Engine Coolant Temperature (ECT) Sensor 2 Circuit Range/
Performance Problem ON (see page 11-168)
P2184 (192) Engine Coolant Temperature (ECT) Sensor 2 Circuit Low Voltage ON (see page 11-170)
P2185 (192) Engine Coolant Temperature (ECT) Sensor 2 Circuit High Voltage ON (see page 11-172)
P2195 (48) Air Fuel Ratio (A/F) Sensor (Sensor 1) Signal Stuck Lean ON (see page 11-174)
NOTE:  The above DTCs are indicated when the PGM-FI system is selected with the HDS.
 Some automatic transmission DTCs cause the MIL to come on. If the MIL is on and no DTCs are indicated in the PGM-FI system, select the A/T system, and check for automatic transmission DTCs.
: These DTCs are indicated by a blinking MIL when the SCS line is jumped with the HDS.
1: A/T
2: The D indicator and the MIL may come on at the same time (A/T).
3: M/T
4: K20Z2 engine
5: K20Z3 engine
9: ’09 model
(cont’d)
1
9
1, 2
3
4
5
5
3
1
08/08/21 14:12:36 61SNR030_110_0011
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ECM/PCM Electrical Connections
11-16Fuel and Emissions Systems
System Description (cont’d)
IGNITION
SWITCH
IG1
ST B
IG2
IG1 HOT in ON (II)
and START (III) IGNITION COIL
RELAY
ELD PGM-FI MAIN
RELAY 2 (FUEL PUMP)P
FUEL PUMP
PGM-FI MAIN
RELAY 1
BATTERY A/C CONDENSER
FAN RELAYRADIATOR
FAN RELAY
A/C COMPRESSOR
CLUTCH RELAY
To
COOLING
FAN CONTROL
RELAY E
A8 IGPC36 IG1
A14 ACC
A5 FANH A23 ELD
A4 FANL GF
C
B
D
A
PG1 B36PG2 B1
MRLY A6
IMOFPR A15
SUBRLY A21
ETCSRLY A20 STARTER CUT
RELAY (ST CUT)
PGMETCS C2 PGM-FI
SUBRELAY
ETCS CONTROL
RELAY
I
IG1ETCS C1
ECM/PCM
CLUTCH
INTERLOCK
SWITCH
H
J*2
*1
T
*3
*1: A/T
*2: M/T
*3: K20Z3 engine
UNDER-HOOD
FUSE/RELAY BOX:
No. 1 MAIN FUSE (100 A)
No.19FIMAIN(15A)
No. 2 IG MAIN (50 A)
No. 23 BACK UP (10 A)
No. 12 STOP & HORN
(15 A) No. 18 IG COIL (15 A)
UNDER-DASH
FUSE/RELAY BOX: No. 3 ALTERNATOR
(10 A) No. 2 FUEL PUMP (15 A)
No. 36 IG2 HAC (A/C)
(10 A)
UNDER-HOOD
FUSE/RELAY BOX: No.15OILLVL(7.5A)
No. 11 FI SUB (15 A)
No. 21 DBW (THROTTLE
ACTUATOR CONTROL) (15 A)
08/08/21 14:12:37 61SNR030_110_0016
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