1999 HONDA CR-V pcm

Electrical Troubleshooting ('98 - 00 Modelsl
Troubleshooting Flowchart - Interlock System - Shift Lock System
NOTE: li the MIL is on, ropair the PGM-FI controt system{see section 11), and recheck.
PCM CONNECTORS
c l3lPl
Wire side of female lerminals
c t3lPt
D {16P1
1 tttt/ 5t/ 1 a t /tlt 1 t\/t ,/ VVV tl t ttj,r\1e\10l211n . I 3 rholr1 t?m@-@Effilil"
D (lCPl
| 2ttt/ ;t /n) ).tt)/ 1 21:/ tvvvvv nnvl.lnl2
I r r ero

12wE gp]P] polr EI!l!!i r.
a (25P1
LGl {8RN/ALKI
Shift levor cannot be mov6dllom the E po3ition when th6blako pedal is pre3sed.
Ch€ck BJake Light Oporation:Press the brake pedal.
B6pair tlutty brrko 3whch circuitl..e rection 231.Are the brake lights ON?
Me.sure ILU Voltage:1. Turn the ignition switch ON (ll1,and shiftto E position.2. Press the brake pedal, andrelease the accelerator pedal.3. Measure the voltage betweenthe A28 terminal and bodygrouno.
Chock tor an open or short in thewi.o botwoen tha A28 t6rminrland thc intorlod( control unit, rndcheck tor loose torminrl fit in theintorlock conftol unh connoctor. lfnocassaryr aubstitute a known-good intollock control unit rndroch6d(
Mor3uro STOP SW vohsgo:1. Turn the ignition switch OFF.2. Disconnect the A (32P1 and B(25P) connectors {rom thePCM.3. Measure the voltage betweenthe A32 and 820 or 822 termi-nals,
Repair op6n in tho wir€ betwsenthe A32 t6.minal and th6 brake3witch.
ls there battery voltage?
fo page 14-121
14-126
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From page 14-126
Measure TPS Voltage:1. Reconnect the A (32P) and B(25P) connectors to the PCM
2. Turn the ignition switch ON (ll)
3. Measure the voltage between
the C27 and B20 ot 822 te(mi'
nats.
ls there approx. 0.5 V?
Check Throttlo Position Sensol
Ground Line:'1. Turn the ignition switch OFF
2. Disconnect the throftle position
sensor connector.3. Check tor continuity between
tho No. 1 terminal of the
throttle position sensor con-
nector and the 820 and 822
terminsl of the PCM.
ls there continuity?
Check tor continuity betlveen the
C18 and 820 or 822 terminals
Rgpsir opan in lhe wire botween
the Cl8 torminal .nd the throttlegosiiion Sensor.ls there continuity?
Check lor looss tetminalfit in the
PCM conn€ctoia. It nece3sarY,
subslituta a known-good PCM
and .echock.
A t32Pl
To page'14-128
LG1 (BRN/BLKI
FCII CONNECTOFS
B {25P1c (31P)
LG2IBRN/BIXI
THROTTTI POSMONSENSOR CONNECTOR
SG2 IGRN/BLK}rL2l3t
Wire side of female terminals
B {25P1c l3lPl D (16P1
LGl IBRN/BLKISG2 {GRN/BLK}
n l,I-il nFFFTI,T';T;IEFML"| -
(cont'd)
wire side of female terminals
LGl IBRN/BIXI
14-127
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Electrical Troubleshooting ('99 - 00 Modelsl
The O/D OFF indicator light doos
not come on when the ignition
switch i3 tiBt tulned ON {lll. {lt
should come on lor about two
seconds and then go outl
Check the O/D OFF Indicatol
Light:1. Turn the ignition switch ON (ll).
2. Shift to E position, and Pressthe Over-Drive (O/D) switch.
Chock lor looae t.rmin.l tit in tho
PCM connoctor3. lf nocesstrY,
substitute a known'good PCM
and r.chock.
Does the O/D OFF indicator
light come on?
Ch€ck O/O IND lor an OPen Cir-
cuit:1. Turn the ignition switch OFF
2. Disconnect the B (25P) con'
nector Irom the PCM.
3. Disconnect the 14P connector
from the gauge assemblY.
4. Check {or continuity between
the 819 terminal and the No.
6 terminal of the gauge
assembly 14P connector.
Replir open in the wiro botween
the 819 terminal and gauge
.ssemblY | 4P connector.ls there continuitY?
Check for a fauhv O/o OFF indi'
cator light bulb or . laulty gluge
a3sembly printed circuit bo.rd.
Troubleshooting Flowchart - o/D oFF Indicator Light Does Not Gome On
A (32Pt
PCM CONNECTORS
B t25Pl c (31
Wire side oI lemale terminals
a
c (3rPt
GAUGE ASSEMBLYCONNECTOR I14P)O,/D IND ILT BLU}
14-131
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Electrical Troubleshooting ('gg - 00 Modelsl
Troubleshooting Flowchart - O/D OFF Indicator Light On Constantly
The O/D OFF indicator light is onconstanllv whenever the ignitionswitch is ON {ll),
Check the O/D OFF IndicatorLighti'1. Turn the ignition switch OFF.2. Disconnect the B (25P) con-nector from the PCM.3. Turn the ignition switch oN flt).
Does the O/D OFF indicatorlight come on?
Fepair short to ground in lhewire between the B'19 terminaland the gauge aasombly 14pGOnnectot,
14-132
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Troubleshooting Flowchart - O/D OFF Indicator Light Does Not Come On
Even Though O/D Switch ls Pressed
PARK PIN/O/D SWITCH CONNECTOR
PCM CONNECTORS
Wire side of female termanals
Terminalside of male terminals
O/D SW (PNKI
PARK PIN/o/D swtTcHCONNECTOR
(cont'd)
The O/D OFF indicator light doesnot come on ev€n though theOver-Driv6 lO/Dl 3witch ispre$ed in E position. lThe o/oOFF indicatol light come onwh6n the ignition switch is fir3tturned on tor two seconds, then
9o out.l
Check the Over-Drivs {O/D) Switchal lhe Switch Connector:1. Turn the ignition switch OFF.2. Disconnect the park pin/O/D
swrtch connector.3. Check for continuity betweenthe No. 1 and No.2 terminalsof the switch connector whalepress ing the switch, andwhen released at.
Check lor loose torminallit in theO/O switch connestor. lf termi-na13 are OK, replace the O/Dswitch and pa]k pin switch as ase.t lsee p.go l+1511.
ls there continuity whilepressing the switch, and no
continuity when released it?
Check O/D Switch fol an OpsnCircuit:1. Disconnect the D (16P) connector from the PCM.2. Check for continuity betweenthe D8 terminal and the No. 1terminal o{ the switch connec'tor,
Ropair open in the wire batweanthe D8 te.minal and the park
pin/O/D Bwhch connocto..
A {32P1B l25Plc (31P)
To page 14-134
14-133
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Electrical Troubleshooting ('gg - 00 Modelsl
Troubleshooting Flowchart - o/D oFF lndicator Light Does Not come on
Even Though O/D Switch ls pressed (contd)
PCM CONNECTORS
Wire side of female terminals
O/D SW {PNKI
PAFK PIN/O/D SWITCH CONNECTOR
Wire side ot female terminals
From page 14-133
Check O/D Switch Ior a Sho.tCircuit:Check for continuity between theD8 terminal and body ground.
Repair short to ground in thewire betweon the D8 terminaland the park pin/O/D.witchconnectoa,
ls there continuity?
Ch€ck O/D Switch G.ound Cir-cuit:Check lor continuity between theNo. 2 terminal of the switch con-nector and body ground.
Repair opon in the wire b€tweenth€ No. 2 terminal of the parkpinlO/D 3witch connector sndground 1G401. c402), or rep.irpoor ground (G401, 4021.
14-134
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A/T Gear Position Indicator
1.
f nput Test -'97 - 98 Models
Remove the gauge assembly from the dashboard (see section 20). and disconnect the 14P connector from the gauge
assemblv (see section 23),
Inspect the connector and socket terminals to be sure they are all making good contact.
. lf the terminals are bent, loose, or corroded, repairthem as necessary, and recheck the system.. lf the terminals look OK, make the following input tests at the 14P connector.- lf I test indicates a problem, find and correct the cause, then recheck the system.- lf all the input tests prove OK, but the indicator is faulty. replace the printed circuit board,
GAUGE ASSEMBLY 14P CONNECTOR
Wire side of female terminals
CavityWirs
ColorTest ConditionTest: Desir€d ResultPossible Cause
{lf rosult is not obtainod)
YEL
lgnition switch ON (ll)Check for voltage to ground:
There should be battery voltage,
. Blown No. 25 (7.5 A) fuse in the
under-dash fuse/relay box. An open in the wire
RE D/BLKCombination light
switch ON and dash
lights brightness con-
trol dial on full bright
Check for voltage between No. 2
and No. 3 terminals;
There should be battery voltage.
Blown No. 47 (7.5 A) fuse in the
under-dash fuse/relay box
Faulty combination Iight switch
Faulty dash iight brightness
controller
An open in the wire
RED
4BLUShift lever in ECheck for continuity to ground:
There should be continuity.
NOTE: There should be no continu-
ity in any other shift lever position.
' Faulty Ay'T gear position switch. An open in the wireBRNShift lever in E
7YELShift lever in @
8BLKUnder all conditionsCheck for continuity to ground:
There should be continuity
. Poor ground {G401). An open in the wire
9GRN/BLK
lgnition switch ON {ll)
and shift lever in any
position except E
Check for voltage to ground:
There should be battery voltage
for two seconds after the ignition
switch is turned ON {ll), and less
than 1 V two seconds later,
' Faulty PCM. An open in the wire
10GRNShift lever in ECheck for continuity to ground:
There should be continuity.
NOTE: There should be no conti-
nuity in any other shift lever posi-
UOn.
. Faulty A,ff gear position switch. An open in the wire1'lREDShift lever in @
12WHTShift lever in E
BLVBLU
Shift lever in ENOTE: Do not push
the brake pedal.
14LT GRN
lgnition switch ON { ll)
and shift lever in any
position except E and
E
Check for voltage to ground:
There should be about 5 V.
. Faulty PCM. An open in the wire
14-142
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L
Input Test -'99 - 00 Models
Remove the gauge assembly from the dashboard {see section 20), and disconnect the 14P connector from the gauge
assembly (see section 23).
Inspect the connector and socket terminals to be sure they are all making good contact.
a lf the terminals are bent. loose, or corroded. repair them as necessary. and recheck the system.
. lf the terminals look OK, make the following input tests at the 14P connector.- lf a test indicates a problem, find and correct the cause, then recheck the system.- lf all the input tests prove OK, but the indicator is faulty, replace the printed circuit board.
GAUGE ASSEMBLY 14P CONNECTOR
Wire side of female terminals
CavityWire
ColorTest ConditionTest: Desired ResuhPossible Caus6
{lf resutt is not obtainod)
1YEL
lgnition switch ON (ll)Check for voltage to ground:
There should be battery voltage.
. Blown No.25 (7.5 A) fuse in the
under-dash fuse/relay box. An open in the wire
2RE D/BLK
Combination light
switch ON and dash
lights brightness con-
trol dial on full bright
Check for voltage between No. 2
and No.3 terminals:
There should be battery voltage.
Blown No. 47 {7.5 A) fuse in the
under-dash fuse/relay box
Faulty combination light switch
Faulty dash light brightness
controller
An open in the wire
5RED
BRNShift lever in ECheck for continuity to ground:
There should be continuity.
NOTE: There should be no continu-
ity in any other shift lever position.
. Faulty A/T gear position switch. An open in the wire7YELShift lever in E
'10BLUShift lever in E
LT BLU
lgnition switch ON (ll),
shift lever in E. and
Over-Drive is OFF bypressing O/D switch.
Check for continuity to ground:
There should be continuity.
Faulty O/D switch
Faulty A/T gear position switch
Faulty PCM
An open in the wire
8BLKUnder all conditionsCheck for continuity to ground:
There should be continuity
. Poor ground (G401)
. An open in the wire
9a:FI\|/Et| ta
lgnition switch ON (ll)
and shift lever in any
position except E
Check for voltage to groundl
There should be battery voltage
for two seconds after the ignition
switch is turned ON (ll). and less
than 1 V two seconds later.
. Faulty PCM. An open in the wire
11REDShift lever in SCheck for continuity to ground:
There should be continuity.
NOTE: There should be no conti-
nuity in any other shift lever posi-
Iton.
. Faulty A/T gear position switch. An open in the wire12WHTShift lever in E
BLI(BLU
Shift lever in ENOTE: Do not push
the brake pedal.
14LT GRN
lgnition switch ON (ll)
and shift lever in any
position except E and
E
Check for voltage to groundl
There should be about 5 V,
. Faulty PCM. An open in the wire
14-143
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