PCM INSPECTION [MZI-3.7]


id0140c3802500


Caution
•  The PCM terminal voltage can vary with the conditions when measuring and changes due to aged deterioration on the vehicle, causing false diagnosis. Therefore determine comprehensively where the malfunction occurs among the input systems, output systems, and the PCM.

PCM inspection preparation

1.  Disconnect the negative battery cable.

2.  Remove the battery and battery tray. (See BATTERY REMOVAL/INSTALLATION [MZI-3.7].)

3.  Remove the windshield wiper arm and blade. (See WINDSHIELD WIPER ARM AND BLADE REMOVAL/INSTALLATION.)

4.  Remove the cowl grille. (See COWL GRILLE REMOVAL/INSTALLATION.)

5.  Remove the windshield wiper motor. (See WINDSHIELD WASHER MOTOR REMOVAL/INSTALLATION.)

6.  Remove the cowl panel. (See COWL PANEL REMOVAL/INSTALLATION.)

7.  Remove the PCM connector still connected.

8.  Install the battery and battery tray. (See BATTERY REMOVAL/INSTALLATION [MZI-3.7].)

9.  Connect the negative battery cable.


Typical Diagnostic Reference Values (PCM Terminal Voltage and/or Data Monitor)

PCM connector (2 types)

ac9wzw00002364

PCM connector (3 types)

ac9wzw00002365

PCM Terminal

(Reference)

Sensors/Inputs

Measured/PID Values

Units Measured/PID

2 types

3 types

KOEO

Hot Idle

48 KM/H (30MPH)

89 KM/H (55MPH)

2I
1G
PSP
0.1/LOW
VBAT/HIGH (I)
0.1/LOW
0.1/LOW
DCV/HIGH-LOW
2S
1BF
GENMN (GFS)
11.89/0
VBAT/50
VBAT/28
VBAT/25
DCV/%
1AK
1Y
APP1
3.9
3.9
3.5
3.3
DCV
1AG
1U
APP2
1.6
1.7
1.8
2.1
DCV
1Q
1H
FPM
OFF
ON
ON
ON
ON-OFF
1M
ACP
0.8/70
0.86/73
0.9/75
1.0/87
DCV/psi
1AN
1AR
MAF
0
0.7
1.4
1.5
DCV
1AJ
1AN
MAF SIGRTN
0
0.6-1.9
1-1.6
1.3-2.3
DCV
1AF
1P
IAT
80 (K)
50 (K)
37 (K)
34 (K)
DEG F
1AB
1I
FTP
2.6/-0.01
2.6/-0.01
2.6/-0.01
2.6/-0.01
DCV/psi
1T
1S
BOO
VBAT/OFF
0.1/ON (E)
VBAT/OFF
VBAT/OFF
DCV/ON-OFF
1P
1T
BPA
0.1/OFF
VBAT/ON (E)
0.1/OFF
0.1/OFF
DCV/ON-OFF
1AX
FEPS
0.5-0.6
0.5-0.6
0.5-0.6
0.5-0.6
DCV
1AT
1N
SCCS
5
0.1(P)
5
5
DCV
2BG
3Z
HO2S12
(L)
(D)
(D)
(D)
DCV
2BC
3AB
HO2S22
0.1
(D)
(D)
(D)
DCV
2U
2AO
HO2S21
0
switching (C)
switching (C)
switching (C)
DCV
2Y
2AS
HO2S11
(L)
switching (C)
switching (C)
switching (C)
DCV
2AN
2AV
CHT
3.6/199
3.6/199
3.58/201
3.45/208
DCV/DEG F
2AB
2T
CMP2
0
5-7
13-16
20-23
Hz
2X
2X
CMP1
0
5-7
13-16
20-23
Hz
2P
2V
CKP
0
400-500
850-1050
1050-1150
Hz
2G
2AF
KNOCK 1
23.99k
25.01k
25.73k
44.51k
N/A
2AD
2AL
TP2
1.1/25
0.8/15
1.0/19
1.4/27
DCV/%
2Z
2AN
TP1
4.1/17
4.4/13
4.2/16
4.0/19
DCV/%
1B
ACCS
VBAT/OFF
VBAT/ON (A)
VBAT/OFF
VBAT/OFF
DCV/ON-OFF
APP
3.9
0
0
22
%
APP_FLT
NO FAULT
NO FAULT
NO FAULT
NO FAULT
FAULT- NO FAULT
CPP/PNP
NEUTRAL
NEUTRAL
DRIVE
DRIVE
NEUTRAL-DRIVE
ETC_ACT
7.56
1.27
6.22
12.74
DEG
ETC_DSD
7.62
1.31
6.19
12.73
DEG
ETC_TRIM
0.23
0.21
0.24
0.24
DEG
FANVAR
NO FAULT
NO FAULT
NO FAULT
NO FAULT
FAULT- NO FAULT
FLI
71 (H)
72 (H)
82 (H)
81 (H)
%
LOAD
51.4 (L)
16.1
35.4
34.7
%
MISFIRE
NO
NO
NO
NO
YES-NO
RPM
0
600
1200
1500
RPM
VSS
0
0
30
55
MPH
WAC F
NO FAULT
NO FAULT
NO FAULT
NO FAULT
FAULT- NO FAULT

PCM Terminal

(Reference)

Actuators/ Outputs

Measured/PID Values

Units Measured/PID

2 types

3 types

KOEO

Hot Idle

48 KM/H (30MPH)

89 KM/H (55MPH)

GENFDC
3.79
0
0
0
%
1BR
1AQ
SMC
0
0
0
0
DCV
1BC
EVMV
0
337
0
847
mA
2H
EVAPCV
0
0
0
0
%
1N
1W
WAC/ACCR
OFF
OFF
OFF
OFF
ON-OFF
2AS
3N
HTR12
VBAT/OFF
0.2/ON
0.2/ON
0.2/ON
DCV/ON-OFF
2AO
3AM
HTR22
VBAT/OFF
0.2/ON
0.2/ON
0.2/ON
DCV/ON-OFF
2AE
2D
CD6F (CYL 6)
VBAT
VBAT
VBAT
VBAT
DCV
2AA
2C
CD5D (CYL 5)
VBAT
VBAT
VBAT
VBAT
DCV
2W
2AX
CD4B (CYL 4)
VBAT
VBAT
VBAT
VBAT
DCV
2K
2B
CD3E (CYL 3)
VBAT
VBAT
VBAT
VBAT
DCV
2F
2AT
CD2C (CYL 2)
VBAT
VBAT
VBAT
VBAT
DCV
2A
2BB
CD1A (CYL 1)
VBAT
VBAT
VBAT
VBAT
DCV
2BR
2BR
TACM (+)
3.7
VBAT
VBAT
VBAT
DCV
2BM
2BC
INJ2
0
2.6-3.2
2.5-5.5
3.5-8.5
mS
2BH
2BG
INJ4
0
2.6-3.2
2.5-5.5
3.5-8.5
mS
2BD
2BI
INJ6
0
2.6-3.2
2.5-5.5
3.5-8.5
mS
2BO
2BO
TACM (-)
3.7
VBAT
VBAT
VBAT
DCV
2BJ
2BQ
INJ1
0
2.6-3.2
2.5-5.5
3.5-8.5
mS
2BF
2AY
INJ3
0
2.6-3.2
2.5-5.5
3.5-8.5
mS
2BB
2BL
INJ5
0
2.6-3.2
2.5-5.5
3.5-8.5
mS
VCTADV
0
-.031
-27.56
-30.94
DEG
VCTADV2
0
0
-27.69
-31.06
DEG
2J
2J
HTR11
0.1/ON (O)
0.1/ON
0.1/ON
0.1/ON
DCV/ON-OFF
2E
2E
HTR21
0.1/ON (O)
0.1/ON
0.1/ON
0.1/ON
DCV/ON-OFF
1V
2BI
FP
ON/OFF
ON
ON
ON
ON-OFF
LONGFT1
(L)
(-)20-(+)20
(-)20-(+)20
(-)20-(+)20
%
LONGFT2
(L)
(-)20-(+)20
(-)20-(+)20
(-)20-(+)20
%
MIL
OFF
OFF
OFF
OFF
ON-OFF
SHRTFT1
(L)
(-)10-(+)10
(-)10-(+)10
(-)10-(+)10
%
SHRTFT2
(L)
(-)10-(+)10
(-)10-(+)10
(-)10-(+)10
%
SPARKADV
10
13.25
44
45.25
DEG
2BP
2BP
VCTDC
0
0
47.32
80
%
2BK
2BK
VCTDC2
0
0
46.8
80
%
VCTADVERR
0
0.18
-0.37
-0.18
DEG
VCTADVERR2
0
0.06
-0.43
0
DEG

PCM Terminal

(Reference)

Other

Measured/PID Values

Units Measured/PID

2 types

3 types

KOEO

Hot Idle

48 KM/H (30MPH)

89 KM/H (55MPH)

1BA, 1Y, 2D
1X, 1Z, 2AP
ETCVREF
5
5
5
5
DCV
1U
1D, 1BJ
VREF
5
5
5
5
DCV
1BO, 1BJ
1BK, 1BP
VPWR
VBAT
VBAT
VBAT
VBAT
DCV
1BB
1V
KAPWR
VBAT
VBAT
VBAT
VBAT
DCV