Acura CSX. Manual — part 83
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04
06
07
*01
How to Troubleshoot Circuits at the ECM/
PCM Connectors
11-6
Fuel and Emissions Systems
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 connector
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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08
09
10
Substituting the ECM/PCM
Special Tools Required
11-7
A
A
D
9.8 N·m
(1.0 kgf·m,
7.2 lbf·ft)
A
B
C
E
• Honda diagnostic system (HDS) tablet tester
• Honda interface module (HIM) and an iN workstation
with the latest HDS software version
• HDS pocket tester
• GNA600 and an iN workstation with the latest HDS
software version
Any one of the above updating tools can be used.
NOTE: Use this procedure when you need to substitute
a known-good ECM/PCM during troubleshooting
procedures.
1. Connect the HDS to the data link connector (DLC)
(A) located under the driver’s side of the dashboard.
2. Turn the ignition switch to ON (II).
3. Make sure the HDS communicates with the ECM/
PCM and other vehicle systems. If it doesn’t, go to
the DLC circuit troubleshooting (see page 11-204). If
you are returning from DLC circuit troubleshooting,
skip step 4 and 5, and clean the throttle body after
substituting the ECM/PCM (see page 11-344).
4. Select the INSPECTION MENU with the HDS.
5. Select the ETCS TEST, then select the TP POSITION
CHECK, and follow the screen prompts.
NOTE: If the TP POSITION CHECK indicates FAILED,
continue this procedure.
6. Turn the ignition switch to LOCK (0).
7. Jump the SCS line with the HDS.
8. Do the battery removal procedure (see page 22-69).
9. Remove the cover (A).
10. Remove the bolts (D), then remove the ECM/PCM
(E).
11. Disconnect ECM/PCM connectors A, B, and C.
NOTE: ECM/PCM connectors A, B, and C have
symbols (A=
, B=
, C=
) embossed on them for
identification.
12. Install the parts in the reverse order of removal.
08/08/21 14:12:35 61SNR030_110_0007
OBD Status
11-8
Fuel and Emissions Systems
13. Do the battery installation procedure (see page
22-69).
14. Turn the ignition switch to ON (II).
NOTE: DTC P0630 VIN Not Programmed or
Mismatch may be stored because the VIN has not
been programmed into the ECM/PCM; ignore it,
and continue this procedure.
15. Manually input the VIN to the ECM/PCM with the
HDS.
16. Select the IMMOBI SYSTEM with the HDS.
17. Enter the immobilizer code that you got from the iN,
or use the ECM/PCM replacement procedure in the
HDS; this allows you to start the engine.
18. Reset the ECM/PCM with the HDS.
19. If the TP POSITION CHECK failed in step 5, clean
the throttle body (see page 11-344).
20. Update the ECM/PCM if it does not have the latest
software (see page 11-227).
21. Do the ECM/PCM idle learn procedure (see page
11-310).
22. Do the CKP pattern clear/CKP pattern learn
procedure.
The OBD status shows the current system status of
each DTC and all of the parameters. This function is
used to see if the repair was successfully completed.
The results of diagnostic tests for the DTC are displayed
as:
• PASSED: The on board diagnosis is successfully
finished.
• FAILED: The on board diagnosis has finished but
failed.
• EXECUTING: The vehicle is in enable criteria
conditions for the DTC and the on board diagnosis is
running.
• NOT COMPLETED: The on board diagnosis was
running but is out of the enable conditions of the DTC.
• OUT OF CONDITION: The vehicle has stayed out of
the enable conditions for the DTC.
08/08/21 14:12:35 61SNR030_110_0008
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SNR9A00A20300000000GAAT00
DTC
(MIL indication )
Two Drive Cycle
Detection
Detection Item
MIL
Note
11-9
DTC Troubleshooting Index
P0010 (56)
Variable Valve Timing Control (VTC) Oil Control Solenoid Valve
Malfunction
ON
(see page 11-274)
P0011 (56)
Variable Valve Timing Control (VTC) System Malfunction
ON
(see page 11-276)
P0101 (50)
Mass Air Flow (MAF) Sensor Circuit Range/Performance Problem
ON
(see page 11-74)
P0102 (50)
Mass Air Flow (MAF) Sensor Circuit Low Voltage
ON
(see page 11-75)
P0103 (50)
Mass Air Flow (MAF) Sensor Circuit High Voltage
ON
(see page 11-78)
P0107 (3)
Manifold Absolute Pressure (MAP) Sensor Circuit Low Voltage
ON
(see page 11-80)
P0108 (3)
Manifold Absolute Pressure (MAP) Sensor Circuit High Voltage
ON
(see page 11-82)
P0111 (10)
Intake Air Temperature (IAT) Sensor Circuit Range/Performance
Problem
ON
(see page 11-85)
P0112 (10)
Intake Air Temperature (IAT) Sensor Circuit Low Voltage
ON
(see page 11-86)
P0113 (10)
Intake Air Temperature (IAT) Sensor Circuit High Voltage
ON
(see page 11-87)
P0116 (86)
Engine Coolant Temperature (ECT) Sensor 1 Circuit Range/
Performance Problem
ON
(see page 11-90)
P0117 (6)
Engine Coolant Temperature (ECT) Sensor 1 Circuit Low Voltage
ON
(see page 11-91)
P0118 (6)
Engine Coolant Temperature (ECT) Sensor 1 Circuit High Voltage
ON
(see page 11-92)
P0122 (7)
Throttle Position (TP) Sensor A Circuit Low Voltage
ON
(see page 11-232)
P0123 (7)
Throttle Position (TP) Sensor A Circuit High Voltage
ON
(see page 11-234)
P0125 (86)
Engine Coolant Temperature (ECT) Sensor 1 Malfunction/Slow
Responce
ON
(see page 11-95)
P0128 (87)
Cooling System Malfunction
ON
(see page 11-96)
P0133 (61)
Air Fuel Ratio (A/F) Sensor (Sensor 1) Malfunction/Slow Response
ON
(see page 11-97)
P0134 (41)
Air Fuel Ratio (A/F) Sensor (Sensor 1) Heater System Malfunction
ON
(see page 11-98)
P0135 (41)
Air Fuel Ratio (A/F) Sensor (Sensor 1) Heater Circuit Malfunction
ON
(see page 11-99)
P0137 (63)
Secondary Heated Oxygen Sensor (Secondary HO2S (Sensor 2))
Circuit Low Voltage
ON
(see page 11-104)
P0138 (63)
Secondary Heated Oxygen Sensor (Secondary HO2S (Sensor 2))
Circuit High Voltage
ON
(see page 11-106)
P0139 (63)
Secondary Heated Oxygen Sensor (Secondary HO2S (Sensor 2))
Slow Response
ON
(see page 11-109)
P0141 (65)
Secondary Heated Oxygen Sensor (Secondary HO2S (Sensor 2))
Heater Circuit Malfunction
ON
(see page 11-110)
P0171 (45)
Fuel System Too Lean
ON
(see page 11-113)
P0172 (45)
Fuel System Too Rich
ON
(see page 11-113)
P0222 (7)
Throttle Position (TP) Sensor B Circuit Low Voltage
ON
(see page 11-236)
P0223 (7)
Throttle Position (TP) Sensor B Circuit High Voltage
ON
(see page 11-239)
P0300 (75)
and any
combination of
the following:
P0301 (71)
P0302 (72)
P0303 (73)
P0304 (74)
Random Misfire Detected
ON
(see page 11-115)
P0301 (71)
No. 1 Cylinder Misfire Detected
ON
(see page 11-118)
P0302 (72)
No. 2 Cylinder Misfire Detected
ON
(see page 11-118)
P0303 (73)
No. 3 Cylinder Misfire Detected
ON
(see page 11-118)
P0304 (74)
No. 4 Cylinder Misfire Detected
ON
(see page 11-118)
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.
4: K20Z2 engine
5: K20Z3 engine
4
5
4
5
08/08/21 14:12:35 61SNR030_110_0009
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