M R S B E C (Sbec Iii) : Opar Emanufactured Ingle Oard Ngine Ontroller
M R S B E C (Sbec Iii) : Opar Emanufactured Ingle Oard Ngine Ontroller
M R S B E C (Sbec Iii) : Opar Emanufactured Ingle Oard Ngine Ontroller
M OPAR R EMANUFACTURED
Technical Service" hot line toll free at:
1-800-86MOPAR (1-800-866-6727)
8am to 5pm M-F (ET)
"Please have Product Part Number and Application available for reference" S INGLE B OARD E NGINE
C O N T R O L L E R ( SBEC III)
Removal and Installation
Instructions
MOPAR Remanufactured
Single Board Engine Controller
(SBEC III)
12 Month / 12,000 Mile
Limited Warranty
Safety Precautions
Before replacing any damaged component you should always first
determine what caused the component to fail and repair that before
continuing.
ART 1174-0599
(Continued on page 2)
Static electricity can damage electronic components. By following a few
safety procedures you can reduce the risk of damage from static Removal Procedure
electricity.
New Yorker LHS Concord Intrepid Vision
1. Avoid contact with the electrical connectors.
2. By frequently touching a known good ground during installa-
tion you can discharge any static electricity that you may 1. Remove air cleaner.
have developed. 2. Disconnect both 40-way
connectors from PCM. (Fig. 2)
3. Remove 2 bolts from PCM
bracket.
Removal Procedure 4. Remove PCM.
Town & Country Caravan Voyager 5. REVERSE the above procedure
for INSTALLATION.
1. Disconnect both cables from the battery, Negative cable first. Fig. 2
2. Remove 2 screws holding PDC (Power Distribution Center)
to bracket.
3. Remove heat shield from battery.
Removal Procedure
4. Remove nut & clamp holding battery to battery tray. Neon
5. Remove battery from vehicle.
Note: The PCM attaches to the inner fender panel next to the washer
6. Rotate PDC toward center of vehicle to remove from rear bracket.
fluid bottle on the passenger side. (Fig. 3)
7. Pull PDC rearward to remove from front bracket. Lay PDC aside to
allow access to PCM. (Powertrain Control Module or SBEC 3) 1. Disconnect both cables from battery, Negative Cable first.
8. Disconnect both 40-way connectors from PCM. 2. Remove washer bottle neck.
9. Remove 3 screws holding PCM to fender. 3. Squeeze tabs on PDC while pulling PDC up to remove it from the
10. Remove PCM from vehicle. (Fig. 1) bracket. Lay PDC aside to gain access to PCM bracket screws.
11. REVERSE the above procedure for INSTALLATION. 4. Remove screws attaching PCM to body.
5. Lift PCM up and disconnect Fig. 3
both 40-way connectors
from PCM.
6. Remove PCM.
7. REVERSE the above
Fig. 1
procedure for
INSTALLATION.
2 3
Removal Procedure Troubleshooting Tips for
Sebring Avenger SBEC III Controllers
Note: Refer to dwg. below for appropriate engine type (Fig. 4) Common failures that cause mis-diagnosis of SBEC III Controllers:
PCM PCM • Intermittent grounds; Loose or corroded grounds may cause false sen-
DOHC SOHC sor readings. Verify all sensor grounds terminate at PCM 40-way con-
nector, pin 43 BK/LB wire or (BK/G on FJ body).
• Manifold absolute pressure (MAP) sensor and Throttle position sensor
(TPS) voltages; check voltage over the entire range, not just the ex-
tremes. Whenever possible use and oscilloscope to check MAP sensor
and TPS sensor output voltages for noise spikes.
PCM Bracket • Verify minimum TPS voltage. Minimum TPS voltage should be approxi-
mately 0.5 to 1.5 VDC.
1. Disconnect both cables from battery, Negative Cable first. • Idle Air Control (IAC); Shorted windings or intermittent connections.
If IAC codes are present, check to ensure motor windings or related
2. Disconnect both 40-way connectors from PCM.
connectors are not shorted to ground.
3. Remove screws attaching PCM to bracket. • Heater voltage for upstream and downstream oxygen sensors. Verify
4. REVERSE the above procedure for INSTALLATION. battery volts +/-1 volt at all oxygen sensor connectors, DG/OR wire
(BK/RD on FJ body).
• Charging system malfunction; Alternator defective or battery not fully
Removal Procedure charged. Check alternator output to ensure there is not excessive ripple
voltage. Verify battery volts +/-1 volt at pin 46 (RD/WT wire).
Breeze Cirrus Stratus
• Sensor voltage supply. Check for approximately 5 volt output from 40-
1. Disconnect Negative Cable from auxiliary jumper terminal. way PCM connector pin 61 VT/WT wire (G/YL on FJ body) to MAP and
TPS sensor, with ignition switch on.
2. Disconnect both 40-way connectors from PCM.
(Fig. 5) • Distributor voltage supply. Check for approximately 8 to 9 ½ VDC out-
3. Remove screws attaching PCM
put from 40-way PCM connector pin 44 OR wire (YL on FJ body), or to
to bracket. (Fig. 5)
cam/crank connector(s) with ignition switch on and while cranking.
4. Lift PCM up to remove it
from the vehicle. Other things to consider
5. REVERSE the above • Auto-shutdown (ASD) relay; Corroded wires or faulty relay.
procedure for INSTALLATION.
• Minimum air flow; check for air leaks or airflow obstruction.
• Vacuum system; Contaminants or leaks in vacuum lines.
• Fuel pressure and leak down.
• Vehicle speed sensor operation.
• Crankshaft and Camshaft sensors; Some aftermarket sensors have
not worked properly with Mopar engine controllers.
(Continued on Page 6)
4 5
Other things to consider (Continued from Page 5) Obtaining Fault Codes (Continued from Page 6)
• Splices and Fusible Links; check for open and/or shorted wires. 3. To erase DTC's, use the "Erase Trouble Code" data screen on the DRB scan tool.
• Damaged connector terminals; Always ensure holding tabs are securely • Using the Malfunction Indicator Lamp (MIL)
seated. 1. Cycle the ignition key ON - OFF - ON - OFF - ON within 5 seconds.
• Excessive current on certain connector pins may damage the PCM. Use 2. Count the number of times the MIL (check engine lamp) on the instrument
of a test lamp or a short in the wiring harness of the vehicle can cause panel flashes on and off - the number of flashes represents the trouble code.
this condition. Always use a DVM when checking the unit/system. There is a slight pause between the flashes representing the 1st and 2nd
• Check Technical Service Bulletins according to model year and system digits of the code. Longer pauses separate individual 2-digit trouble codes.
malfunction
Fault Codes
On Board Diagnostics • NOTICE: Not all Fault Codes listed are applicable to all vehicles. For specific
vehicle codes, refer to appropriate Chrysler Service/Repair Manual.
The Powertrain Control Module (PCM) monitor several different circuits in the Generic
Scan Tool
fuel injection, ignition, emission and engine systems. If the PCM senses a Code Code DRB Display (See Note 1) Description of Fault Code
problem with a monitored circuit often enough to indicate an actual problem, it 11** P1390 Timing belt skipped 1 tooth Timing belt skipped 1 tooth or more from initial learned value.
stores a Diagnostic Trouble Code (DTC) in the PCM's memory. If code applies or more.
to a non-emissions related component or system, and the problem is repaired or
P1391 Intermittent loss of CMP or CKP Intermittent loss of either camshaft or crankshaft
or ceases to exist, the PCM cancels the code after 40 warmup cycles. DTC's During Cranking position sensor signal.
that affect vehicle emissions illuminate the Malfunction Indicator Lamp. (MIL) or
No crank reference signal No crank reference signal detected during engine cranking.