3.3.2 Intermittent Code
A diagnostic trouble code that is not there every time the engine control module/SKIM checks the
circuit is an ªintermittentº code. Most intermittent codes are caused by wiring or connector
problems. Defects that come and go like this are the most difficult to diagnose; they must be
looked for under specific conditions that cause them. The following checks may assist you in
identifying a possible intermittent problem:
²Visually inspect related wire harness connectors. Look for broken, bent, pushed out, or
corroded terminals.
²Visually inspect the related harnesses. Look for chafed, pierced, or partially broken wire.
²Refer to any hotlines or technical service bulletins that may apply.
NOTE: Electromagnetic (radio) interference can cause an intermittent system malfunction. This
interference can interrupt communication between the ignition key transponder and the SKIM.
3.3.3 Reset Counter
The reset counter counts the number of times the vehicle has been started since codes were last
set, erased, or the battery was disconnected. The reset counter will count up to 255 start counts.
The number of starts helps determine when the trouble code actually happened. This is recorded
by the ECM and can be viewed on the DRB as the RESET COUNTER.
When there are no trouble codes stored in memory, the DRB will display ªNO TROUBLE CODES
FOUNDº and the reset counter will show ªRESET COUNT = XXX.º
3.3.4 ECM Diagnostic Trouble Codes
A/C CONTROL SHORT CIRCUIT
A/C CONTROL OPEN CIRCUIT
A/C SYSTEM PRESSURE SIGNAL HIGH EXCEEDED
A/C SYSTEM PRESSURE SIGNAL LOW EXCEEDED
A/C SYSTEM PRESSURE SUPPLY HIGH EXCEEDED
A/C SYSTEM PRESSURE SUPPLY LOW EXCEEDED
ACCELERATOR PEDAL SENSOR SIGNAL HIGH EXCEEDED
ACCELERATOR PEDAL SENSOR PLAUSIBILITY
ACCELERATOR PEDAL SENSOR PWG PLAUS WITH LOW IDLE SWITCH
ACCELERATOR PEDAL SENSOR PWG PLAUS WITH POTENTIOMETER
ATMOSPHERIC PRESSURE SENSOR SRC HIGH EXCEEDED
ATMOSPHERIC PRESSURE SENSOR SRC LOW EXCEEDED
BATTERY VOLTAGE SRC HIGH EXCEEDED
BRAKE SIGNAL PLAUS WITH REDUNDANT CONTACT
CLUTCH SIGNAL PLAUSIBILITY
CONTROL SLEEVE SENSOR SIGNAL HIGH EXCEEDED
CONTROL SLEEVE SENSOR START END POS. NOT ATTAINED
CONTROL SLEEVE SENSOR STOP END POS. NOT ATTAINED
CRUISE STATUS INDICATOR LAMP SHORT CIRCUIT
DIAGNOSTIC LAMP OPEN CIRCUIT
DIAGNOSTIC LAMP SHORT CIRCUIT
DIESEL POWER RELAY SHUTS OFF TOO EARLY
DIESEL POWER RELAY SHUTS OFF TOO LATE
EEPROM PLAUSIBILITY CHECKSUM ERROR FOR ADJ. (EGR)
EEPROM PLAUSIBILITY CHECKSUM ERROR IN CC212
EEPROM PLAUSIBILITY COMMUNICATION WITH EEPROM
EEPROM PLAUSIBILITY FUNC. SWITCH WRONG OR MISSING
EEPROM PLAUSIBILITY VER. NUMBER NOT CORRESPONDING
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4.8 Lamps and Indicators
The ªCruiseº lamp is controlled by the Body Control Module. The Diagnostic/Glow Plug lamp is
controlled by the Engine Control Module. The ªAlarm Setº lamp is controlled by the SKIM.
5.0 DISCLAIMERS, SAFETY, WARNINGS
5.1 Disclaimers
All information, illustrations, and specifications contained in this manual are based on the latest
information available at the time of publication. The right is reserved to make changes at any time
without notice.
5.2 Safety
5.2.1 Technician Safety Information
WARNING!!Engines produce carbon monoxide that is odorless, causes slower reaction time,
and can lead to serious injury. When the engine is operating, keep service areas WELL
VENTILATED or attach the vehicle exhaust system to the shop exhaust removal system.
Set the parking brake and block the wheels before testing or repairing the vehicle. It is especially
important to block the wheels on front-wheel drive vehicles; the parking brake does not hold the
drive wheels.
When servicing a vehicle, always wear eye protection, and remove any metal jewelry such as
watchbands or bracelets that might make an inadvertent electrical contact.
When diagnosing a powertrain system problem, it is important to follow approved procedures
where applicable. These procedures can be found in the service manual. Following these
procedures is very important to the safety of individuals performing diagnostic tests.
5.2.2 Vehicle Preparation for Testing
Make sure the vehicle being tested has a fully charged battery. If it does not, false diagnostic
codes or error messages may occur.
5.2.3 Servicing Sub-Assemblies
Some components of the powertrain system are intended to be serviced in assembly only.
Attempting to remove or repair certain system sub-components may result in personal injury
and/or improper system operation. Only those components with approved repair and installation
procedures in the service manual should be serviced.
5.2.4 DRBIIITSafety Information
WARNING: Exceeding the limits of the DRB multimeter is dangerous. It can expose you to
serious or possibly fatal injury. Carefully read and understand the cautions and the
specification limits.
²Follow the vehicle manufacturer's service specifications at all times.
²Do not use the DRB if it has been damaged.
²Do not use the test leads if the insulation is damaged or if metal is exposed.
²To avoid electrical shock, do not touch the test leads, tips, or the circuit being tested.
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