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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TEST VER-2AROAD TEST VERIFICATION
Inspect the vehicle to ensure that all engine components are connected. Reassemble and reconnect
all components as necessary.
If this verification procedure is being performed after a NO TROUBLE CODE test, do the
following:
1. Check to see if the initial symptom still exists.
2. If the initial or another symptom exists, the repair is not complete. Check all pertinent Technical
Service Bulletins and return toTEST NTC-1Aif necessary.
For previously read trouble codes that have not been dealt with, return toDTC TESTand follow the
path specified; otherwise, continue.
If the engine control module has not been changed:
1. Connect the DRB to the data link connector and erase trouble codes.
2. With the DRB, reset all values in the adaptive memory.
3. Disconnect the DRB.
4. Turn the ignition off for at least 10 seconds.
Ensure no trouble code remains by doing the following:
1. If this test is for anA/C Relay Control Circuit,drive the vehicle for at least five minutes with
the A/C on. For some of the drive, go at least 40 mph; at some point stop the car and turn the
engine off for 10 seconds or more then restart and continue. Upon completion of the road test,
turn the engine off, and read trouble codes with the DRB.
2. If the repaired code has reset, the repair is not complete. Check all related Technical Service
Bulletins and return toDTC TESTif necessary. If another trouble code has set, return toDTC
TESTand follow the path specified for that trouble code. If there are no trouble codes, the
repair was successful and is now complete.
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