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2001 chrysler sebring: crank and the odometer show no bus

Customer Question
i have a 2001 chrysler...
i have a 2001 chrysler sebring with a 2.7 it will not crank and the odometer show no bus
Submitted: 5 years ago.Category: Chrysler
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Answered in 9 hours by:
4/27/2012
Chrysler Mechanic: Chris, Technician replied 5 years ago
Chris
Chris, Technician
Category: Chrysler
Satisfied Customers: 14,188
Experience: 30 years certified Chrysler technician, smog license Certified Master Technician
Verified
Hello and welcome to just answer. When you turn the ignition on to the "run" position, can you hear the fuel pump in the tank run for about 2 seconds and then turn off?

Chris
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Customer reply replied 5 years ago
no fuel pump no voltage to the starter relay or asd relay
Chrysler Mechanic: Chris, Technician replied 5 years ago

Ok, this sounds like you may have a failing PCM (engine computer). Let me get some PCM connector info for you. I want you to check for fused Batt feed, ignition feed, and ground on the PCM connectors. If you do have power and ground there, then the PCM has failed and will need to be replaced. If you do not have power and ground, then we will have to trouble shoot that.

 

Chris

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Customer reply replied 5 years ago
ok great
Chrysler Mechanic: Chris, Technician replied 5 years ago

Ok, here it is. I have highlighted the circuits you need to check. Use a 12 volt test light with the alligator clip connected to the negative battery cable to check the fused batt and fused ignition terminals (turn on the ignition to check these). Connect the test light to the positive battery cable to check the ground. Note: those terminals are pretty tiny and your test light probe may not actually touch them, so use a small paper clip or stick pin to connect the light to the terminal.

 

Chris

 

graphic

POWERTRAIN CONTROL MODULE C1 - GRAY 40 WAY CAV CIRCUIT FUNCTION
1 K94 16TN/LG (2.7L) COIL ON PLUG DRIVER NO. 4
2 K93 16TN/OR (2.7L) COIL ON PLUG DRIVER NO. 3
3 K17 16DB/TN (2.0L/2.4L) IGNITION COIL NO. 2 DRIVER
3 K92 16TN/PK (2.7L) COIL ON PLUG DRIVER NO. 2
4 K96 16TN/LB (2.7L) COIL ON PLUG DRIVER NO. 6
5 V32 20YL/RD SPEED CONTROL ON/OFF SWITCH SENSE
6 A142 14DG/OR AUTOMATIC SHUTDOWN RELAY OUTPUT
7 K13 18YL/WT INJECTOR NO. 3 DRIVER
8 K20 18DG GENERATOR FIELD DRIVER
9 - -
10 Z108 14BK/TN GROUND
11 K91 16TN/RD (2.7L) COIL ON PLUG DRIVER NO. 1
11 K19 16BK/GY (2.0L/2.4L) IGNITION COIL NO. 1 DRIVER
12 - -
13 K11 18WT/DB INJECTOR NO. 1 DRIVER
14 K58 18BR/DB (2.7L) INJECTOR NO. 6 DRIVER
15 K38 18GY (2.7L) INJECTOR NO. 5 DRIVER
16 K14 18LB/BR INJECTOR NO. 4 DRIVER
17 K12 18TN INJECTOR NO. 2 DRIVER
18 K79 18OR/RD (2.0L/2.4L) OXYGEN SENSOR 1/1 HEATER CONTROL
19 - -
20 F12 18DB/WT FUSED IGNITION SWITCH OUTPUT (RUN-START)
21 K95 16TN/DG (2.7L) COIL ON PLUG DRIVER NO. 5
22 - -
23 - -
24 - -
25 K42 18DB/LG KNOCK SENSOR SIGNAL
26 K2 20TN/BK ENGINE COOLANT TEMPERATURE SENSOR SIGNAL
27 K127 18DB/OR (2.0L/2.4L) OXYGEN SENSOR GROUND
27 K127 18DB/LG (2.7L) OXYGEN SENSOR GROUND
28 - -
29 K241 20LG/RD (2.7L) OXYGEN SENSOR 2/1 SIGNAL
30 K41 20BK/DG OXYGEN SENSOR 1/1 SIGNAL
31 K90 20TN ENGINE STARTER MOTOR RELAY CONTROL
32 K24 20GY/BK CRANKSHAFT POSITION SENSOR SIGNAL
33 K44 20TN/YL CAMSHAFT POSITION SENSOR SIGNAL
34 K235 20LG/PK (2.7L) EGR SENSOR SIGNAL
35 K22 20OR/DB THROTTLE POSITION SENSOR SIGNAL
36 K1 20DG/RD MAP SENSOR SIGNAL
37 K21 20BK/RD INTAKE AIR TEMPERATURE SIGNAL
38 - -
39 K36 18VT/RD (2.7L) MANIFOLD SOLENOID CONTROL
40 K35 20GY/YL EGR SOLENOID CONTROL

 

 

graphic

 

POWERTRAIN CONTROL MODULE C2 - GRAY 40 WAY CAV CIRCUIT FUNCTION
41 V37 20PK/LG SPEED CONTROL SWITCH SIGNAL
42 C18 20DB A/C PRESSURE SIGNAL
43 K4 18BK/LB SENSOR GROUND
44 K7 18OR/WT 8V SUPPLY
45 K10 18DB/LG (2.0L/2.4L) STEERING PRESSURE SWITCH SENSE
46 A14 14RD/TN FUSED B(+)
47 Z109 14BK GROUND
48 K40 20BR/WT IDLE AIR CONTROL MOTOR NO. 3 DRIVER
49 K60 20YL/BK IDLE AIR CONTROL MOTOR NO. 2 DRIVER
50 Z107 14BK/TN GROUND
51 K141 20TN/WT OXYGEN SENSOR 1/2 SIGNAL
52 K25 18VT/LG AMBIENT TEMPERATURE SENSOR SIGNAL
53 K341 20PK/WT (2.7L) OXYGEN SENSOR 2/2 SIGNAL
54 - -
55 C24 20DB/TN LOW SPEED RADIATOR FAN RELAY CONTROL
56 V36 20TN/RD SPEED CONTROL VACUUM SOLENOID CONTROL
57 K39 20GY/RD IDLE AIR CONTROL MOTOR NO. 1 DRIVER
58 K59 20VT/BK IDLE AIR CONTROL MOTOR NO. 4 DRIVER
59 D25 20OR PCI BUS
60 - -
61 K6 18VT/WT 5V SUPPLY
62 K29 20WT/PK BRAKE SWITCH SENSE
63 T10 20YL/DG TORQUE MANAGEMENT REQUEST SENSE
64 C28 20DB/OR A/C COMPRESSOR CLUTCH RELAY CONTROL
65 D21 20PK SCI TRANSMIT
66 G7 18WT/OR VEHICLE SPEED SENSOR SIGNAL
67 K51 20DB/VT AUTOMATIC SHUTDOWN RELAY CONTROL
68 K52 18PK/BK EVAPORATIVE EMISSION SOLENOID CONTROL
69 C27 20DB/PK HIGH SPEED RADIATOR FAN RELAY CONTROL
70 K108 18WT/TN EVAPORATIVE SOLENOID SENSE
71 K71 20WT/RD EATX RPM SIGNAL
72 K107 18OR LEAK DETECTION PUMP SWITCH SENSE
73 - -
74 K31 20BR/LG FUEL PUMP RELAY OUTPUT
75 D20 20LG SCI RECEIVE
76 T41 20BK/LB TRS T41 SENSE
77 K106 18WT/DG LEAK DETECTION PUMP SOLENOID CONTROL
78 - -
79 - -
80 V35 20LG/RD SPEED CONTROL VENT SOLENOID CONTROL

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Customer reply replied 5 years ago
test just the bold terminal the ones that are darker on sheet
Chrysler Mechanic: Chris, Technician replied 5 years ago

Yes, that is correct.

 

Chris

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Customer reply replied 5 years ago
ok i have already replaced the pcm but all grounds and voltages are correct
Customer reply replied 5 years ago
was wondering since the odometer so no bus could the pci bus wire # XXXXX be bad but dont know where it goes
Chrysler Mechanic: Chris, Technician replied 5 years ago

Hmmm, can you get a scan tool connected to the vehicle and see if it will communicate with the PCM?

 

Chris

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Customer reply replied 5 years ago
yes but get no codes can u give me the pin locations for power and grounds and pci bus at speedo cluster
Chrysler Mechanic: Chris, Technician replied 5 years ago

So it does communicate? Can you see all of the sensor values?

 

I will get the cluster pin info for you.

 

Chris

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Customer reply replied 5 years ago
yes something i did notice that is strange my wiring diagram shows 12 volts to starter and then from starter to alt. i have 12 at starter but only 3.5 at alt. heavy red wire. dont see how that would affect the bus but i will check it. also i though maybe sensor shorted (5 volt reference) but all o.k. and 5 volt is there.
Chrysler Mechanic: Chris, Technician replied 5 years ago

You should have 12 volts at the large terminal at the alternator and if you do not, then there may be a problem in that large cable between the battery and the alternator. however you are correct in stating that it should not affect the bus circuit. If you turn on the ignition and jump the small terminal at the starter with 12 volts, will it crank and start?

 

Chris

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Customer reply replied 5 years ago
i can jump the relay and it will crank but not start so no starter problem i do need the pin locations for voltage and grounds at the speedo
Chrysler Mechanic: Chris, Technician replied 5 years ago

Ok, here is the cluster pin out info for you.

 

Chris

 

graphic

 

INSTRUMENT CLUSTER - 26 WAY CAV CIRCUIT FUNCTION
1 - -
2 D25 20VT/OR PCI BUS (MIC)
3 D25 20VT/RD PCI BUS (TRAVELER)
4 - -
5 G69 20BK/OR VTSS INDICATOR DRIVER
6 - -
7 - -
8 - -
9 - -
10 Z105 18BK/LB GROUND
11 Z106 18BK/OR GROUND
12 E2 20OR PANEL LAMPS DRIVER
13 - -
14 G6 20GY ENGINE OIL PRESSURE SWITCH SENSE
15 F11 20RD/WT FUSED IGNITION SWITCH OUTPUT (OFF-RUN-START)
16 - -
17 - -
18 L61 18LG/TN LEFT TURN SIGNAL
19 L60 18TN/BR RIGHT TURN SIGNAL
20 - -
21 F33 20PK/WT FUSED B(+)
22 G9 18GY/BK RED BRAKE WARNING INDICATOR DRIVER
23 Z104 20BK GROUND
24 G10 20LG/RD SEAT BELT SWITCH SENSE
25 G29 20BK/TN LOW WASHER FLUID SWITCH SENSE
26 L39 18LB FOG LAMP SWITCH OUTPUT

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Customer reply replied 5 years ago

i will check tommorow any other ideas would be great

 

Chrysler Mechanic: Chris, Technician replied 5 years ago
Sounds good. Let me know what you find and if I think of anything else, I will let you know.

Chris
Chris
Chris, Technician
Category: Chrysler
Satisfied Customers: 14,188
Experience: 30 years certified Chrysler technician, smog license Certified Master Technician
Verified
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