p0118 HONDA CIVIC 2003 7.G Workshop Manual

DTC Troubleshooting Index
";These DTCs are indicated by a blinking malfunction indicator lamp (MlL)when the SCS service signal line isjumped with the Honda PGM Tester.
{cont'd)
11-7
DTC
{MlL indication*)
Temporary DTCDetection ltemNote
P0010 (56)Variable Valve Timing Control {VTC) Oil Control
Solenoid Valve Malfunction
{see page 1 1'1 18)
P0011 (56)P001 1Variable Valve Timing Control (WC) System
Malfunction
(see page 11- 1 19)
P0107 (3)Manifold Absolute Pressure (MAP) Sensor Circuit
Low Voltaqe
(see page 1'l-521
P0108 (3)Manifold Absolute Pressure (MAP) Sensor Circuit
Hiqh Voltaqe
(see page 11-53)
P0112 (10)Intake Air Temperature (lAT) Sensor Circuit Low
Voltaoe
(see page 11-55)
P01r3 (10)Intake Air Temperature (lAT) Sensor Circuit High
Voltaoe
(see page '11-56)
P0116 {86) P0116Englne Coolant Temperature (ECT) Sensor Range/
Performance Problem
{see page 11-57)
P0117 {6)Engine Coolant Temperature (ECT) Sensor Circuit
Low Voltaqe
(see page 11-58)
P0118 {6)Engine Coolant Temperature (ECT) Sensor Circuit
Hiqh Voltaqe
{see page 11-59)
P0122 t7\Throttle Position (TP) Sensor Circuit Low Voltaqe(see Daqe 11-60)P0123 {7)Throttle Posltion (TP) Sensor Circuit Hiqh Voltaoe(see paqe 11-62)
P0128 (87)P0128Coolinq SVStem Malfunction(see Daqe 11-64)
P0134 (41)Air Fuel Ratio (Ay'F) Sensor (Sensor 1) No Activity
Detected
(see page 11-65)
P0137 (63)P0137Secondary Heated Oxygen Sensor (Secondary HO2S)(Sensor 2) Circuit Low Voltaqe
(see page 11-65)
P0138 (63)P0138Secondary Heated Oxygen Sensor (Secondary HO2S)(Sensor 2) Circuit Hiqh Voltaqe
(see page 11-66)
P0139 (63)P0139Secondary Heated Oxygen Sensor (Secondary H02S)(Sensor 2) Slow ResDonse
(see page 11-67)
P0141 (65)Secondary Heated Oxygen Sensor (Secondary H02S)(Sensor 2) Heater Circuit Malfunction
(see page 11-68)
P0171 (45)PO\11Fuel Svstem Too Lean(see paqe 11-70)
PO112 l'45)PO\l2Fuel System Too Rich(see oaoe 11-70)
P0300 and any P0300 and any
of of
P0301 (71) P0301
PO302 (721 P0302
P0303 (73) P0303
P0304 (74) P0304
Random Misfire(see page 11-71)
P0301 (7'1) P0301No. 1 Cylnder Misfire{see page 11-72)
P0302 (721 P0302No. 2 Cvlnder Misfire{see paqe 1 1-72)
P0303 (73)P0303No. 3 Cvlnder Misfire(see oaqe 11-72)
P0304 {74)P0304No. 4 Cvlnder Misfire{see Daqe 1 1-72)

DTC P0116: ECT Sensor Range/Performance
Problem
NOTE: lf DTC P0117 and/or P0118 are stored at the
same time as DTC P0116, troubleshoot those DTCS first,
then recheck for DTC P0116,
1. Stanthe engine. Hold the engine at 3,000 rpm with
no load {in neutral) until the radiator fan comes on,
then let it idle.
2. Check the ECT with the scan tool.
ls 176- 212'F (80 100"C)or0.5 0.8V
indicated?
YES Intermittent failure. system is OK at this time.
Check the thermostat and the cooling system.l
NO-Checkthe thermostat and the cooling system.
lf they are OK, replace the ECT sensor.l
11-57

DTC P0118: ECT Sensor Circuit High Voltage
1. Turn the ignition switch ON (ll).
2. Check the ECT with the scan tool.
ls 20'C ( 4'F)or less (or L-Limit in Honda
mode of PGM Tester) or 5 V indicated?
?
5.
YES Go to step 3.
NO lntermittent failure, system is OK at this time.
Check for poor connections or loose terminals at
the ECT sensor and at the ECM. I
Turn the ignition switch OFF.
Disconnect the ECT sensor 2P connector.
Connect the ECT sensor 2P connector terminals
No. 1 and No. 2 with a jumper wire.
ECT SENSOR 2P CONNECTOR
\
ltltltt.l
Ecr
-I-l*,
(RED/WHT) {GRN/YEL)
tlJUMPER WIRE
wire side oI Iemale terminals
6. Turn the lgnition switch ON (ll).
1.
8.
9.
10.
Check the ECT with the scan tool.
ls 20"C ( 4"F)or less (or L-Limit in Honda
mode ot PGM Tester) or 5 V indicated?
YES-Go to step 8.
NO Replace the ECT sensor.I
Turn the ignition switch OFF.
Remove the jumper wire.
Connect ECM connector terminals A10 and Bg with
a jumper wire.
ECM CONNECTORS
a {31 P}B {24 P)
Wire side of female terminals
Turn the ignition switch ON (ll).
Check the ECT with the scan tool.
ls 20"C ( 4"F) or less (or L-Limit in Honda
mode of PGM Tester) ot 5 V indicated?
YES - Update the ECM if it does not have the latest
software, or substitute a known-good ECI\4, then
recheck (see page 1 1-6). If the symptom/indication
goes away with a known-good ECM, replace the
original ECM.I
NO Repair open in the wire between the ECM
(A10, 88) and the ECT sensor.l
11.
12.
JUMPER WIRE
11-59