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)

ac9uuw00002429

PCM Terminal

(Reference)

Sensors/Inputs

Measured/PID Values

Units Measured/PID

KOEO

Hot Idle

48 KM/H (30MPH)

89 KM/H (55MPH)

2I
PSP
0.1/LOW
VBAT/HIGH (I)
0.1/LOW
0.1/LOW
DCV/HIGH-LOW
2S
GENMN (GFS)
11.89/0
VBAT/50
VBAT/28
VBAT/25
DCV/%
1AK
APP1
3.9
3.9
3.5
3.3
DCV
1AG
APP2
1.6
1.7
1.8
2.1
DCV
1AC
APP3
1.0
1.0
1.3
1.5
DCV
1Q
FPM
OFF
ON
ON
ON
ON-OFF
1AN
MAF
0
0.7
1.4
1.5
DCV
1AJ
MAF SIGRTN
0
0.6-1.9
1-1.6
1.3-2.3
DCV
1AF
IAT
80 (K)
50 (K)
37 (K)
34 (K)
DEG F
1AB
FTP
2.6/-0.01
2.6/-0.01
2.6/-0.01
2.6/-0.01
DCV/psi
1T
BOO
VBAT/OFF
0.1/ON (E)
VBAT/OFF
VBAT/OFF
DCV/ON-OFF
1P
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
SCCS
5
0.1(P)
5
5
DCV
2BG
HO2S12
(L)
(D)
(D)
(D)
DCV
2BC
HO2S22
0.1
(D)
(D)
(D)
DCV
2U
HO2S21
0
switching (C)
switching (C)
switching (C)
DCV
2Y
HO2S11
(L)
switching (C)
switching (C)
switching (C)
DCV
2AM
CHT
3.6/199
3.6/199
3.58/201
3.45/208
DCV/DEG F
2AB
CMP2
0
5-7
13-16
20-23
Hz
2X
CMP1
0
5-7
13-16
20-23
Hz
2P
CKP
0
400-500
850-1050
1050-1150
Hz
2G
KNOCK 1
23.99k
25.01k
25.73k
44.51k
N/A
2AD
TP2
1.1/25
0.8/15
1.0/19
1.4/27
DCV/%
2Z
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

KOEO

Hot Idle

48 KM/H (30MPH)

89 KM/H (55MPH)

GENFDC
3.79
0
0
0
%
1BR
SMC
0
0
0
0
DCV
1BC
EVMV
0
337
0
847
mA
1N
WAC/ACCR
OFF
OFF
OFF
OFF
ON-OFF
2AS
HTR12
VBAT/OFF
0.2/ON
0.2/ON
0.2/ON
DCV/ON-OFF
2AO
HTR22
VBAT/OFF
0.2/ON
0.2/ON
0.2/ON
DCV/ON-OFF
2AE
CD6F (CYL 6)
VBAT
VBAT
VBAT
VBAT
DCV
2AA
CD5D (CYL 5)
VBAT
VBAT
VBAT
VBAT
DCV
2W
CD4B (CYL 4)
VBAT
VBAT
VBAT
VBAT
DCV
2K
CD3E (CYL 3)
VBAT
VBAT
VBAT
VBAT
DCV
2F
CD2C (CYL 2)
VBAT
VBAT
VBAT
VBAT
DCV
2A
CD1A (CYL 1)
VBAT
VBAT
VBAT
VBAT
DCV
2BR
TACM (+)
3.7
VBAT
VBAT
VBAT
DCV
2BM
INJ2
0
2.6-3.2
2.5-5.5
3.5-8.5
mS
2BH
INJ4
0
2.6-3.2
2.5-5.5
3.5-8.5
mS
2BD
INJ6
0
2.6-3.2
2.5-5.5
3.5-8.5
mS
2BO
TACM (-)
3.7
VBAT
VBAT
VBAT
DCV
2BJ
INJ1
0
2.6-3.2
2.5-5.5
3.5-8.5
mS
2BF
INJ3
0
2.6-3.2
2.5-5.5
3.5-8.5
mS
2BB
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
HTR11
0.1/ON (O)
0.1/ON
0.1/ON
0.1/ON
DCV/ON-OFF
2E
HTR21
0.1/ON (O)
0.1/ON
0.1/ON
0.1/ON
DCV/ON-OFF
1V
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
VCTDC
0
0
47.32
80
%
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

KOEO

Hot Idle

48 KM/H (30MPH)

89 KM/H (55MPH)

1BA, 1Y, 2D
ETCVREF
5
5
5
5
DCV
1U
VREF
5
5
5
5
DCV
1BO, 1BJ
VPWR
VBAT
VBAT
VBAT
VBAT
DCV
1BB
KAPWR
VBAT
VBAT
VBAT
VBAT
DCV