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SC - 1st Gen (1992-2000)

checking diagnostic codes

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Old Mar 24, 2003 | 04:23 PM
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ursrob's Avatar
ursrob
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From: selden
Default checking diagnostic codes

Hey Guys,
I did a search but couldn't find an answer.When I jump the e1 and te1 terminals my check engine light flashes rapidly.Does this mean that there are no codes or is there some kind of problem?Thanks in advance.
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Old Mar 24, 2003 | 07:38 PM
  #2  
khark's Avatar
khark
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From: WY
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These are the basic directions but I can't seem to copy the code table. If you can't
find them anyplace else I can take some time and see if I can get them. If you need
more information send me an e-mail at khark@silverstar.com.



5) To retrieve codes, turn ignition on. DO NOT start engine.
Using a jumper wire, connect terminals E1 and TE1 together either on
DLC1 or DLC2. See Fig. 2. Count number of flashes from Malfunction
Indicator Light (MIL).
6) If MIL flashes 2 times every second, system is functioning
properly (no codes present). This is known as a normal condition. If a
diagnostic code is displayed, first group of flashes will indicate
first digit of a 2-digit diagnostic code. After a 1.5 second delay,
second group of flashes will indicate second digit of diagnostic code.
7) If more than one code is stored, a 2.5 second delay will
occur between diagnostic codes. After all diagnostic codes have been
displayed, a 4.5 second delay will occur and then codes will be
repeated until jumper wire connecting terminals E1 and TE1 is
disconnected. Diagnostic codes will display from smallest to largest
number.
8) Identify and record diagnostic trouble codes. After
trouble codes are retrieved, remove jumper wire to exit Normal Mode.
See NOTES ON TROUBLE CODES. For additional information on trouble
codes, see DIAGNOSTIC TROUBLE CODE DEFINITIONS table and appropriate
DIAGNOSTIC TROUBLE CODE IDENTIFICATION table. After reading diagnostic
trouble code definition and identification, perform appropriate
diagnostic trouble code chart. To clear codes, see CLEARING CODES.
Test Mode
1) This mode detects same malfunctions as normal mode. It
also detects malfunctions in starter signal circuit, idle contact
signal of throttle position sensor, A/C signal, neutral start switch
signal (M/T) and park/neutral start switch (A/T). Test mode is more
sensitive to intermittent and regular faults, and is used for road
test conditions.
2) Before retrieving trouble code(s), verify MIL on
instrument panel comes on with ignition on and engine off. The MIL
light should go off when engine is started.
3) If MIL does not come on with ignition on and engine off,
check bulb circuit on instrument panel and wiring circuit between MIL
and ECM. See appropriate wiring diagram in L - WIRING DIAGRAMS
article. If MIL remains on, self-diagnostic system has detected a
malfunction or abnormality.
4) To read diagnostic codes, ensure battery voltage is at
least 11 volts, throttle valve is fully closed, transmission is in
Neutral, all accessories are off and parking brake is applied. Turn
ignition off. Locate Data Link Connector No. 2 (DLC2). See Fig. 1.
Using a jumper wire, connect terminals E1 and TE2 of DLC2.
See Fig. 2. Turn ignition on. DO NOT start engine.
NOTE: If terminals E1 and TE2 are connected after ignition is
turned on, test mode will not start.
5) When ignition is turned on, Malfunction Indicator Light
(MIL) on instrument panel should flash. If MIL does not flash, see
MALFUNCTION INDICATOR LIGHT (MIL) DOES NOT FLASH.
6) Start engine. Perform road test and simulate conditions
described by customer. DO NOT disconnect jumper wire connecting
terminals E1 and TE2. After road test, connect another jumper wire
between terminals E1 and TE1 of DLC No. 1 or 2.
7) Count number of flashes from MIL. System is functioning
properly (normal condition) if MIL flashes 2 times every second. If a
diagnostic trouble code is displayed, first group of flashes will
indicate first digit of a 2-digit diagnostic code. After a 1.5 second
delay, second group of flashes will indicate second digit of
diagnostic code.
8) If more than one code is stored, a 2.5 second delay will
occur between diagnostic codes. After all diagnostic codes have been
displayed, a 4.5 second delay will occur and then codes will be
repeated until jumper wire connecting terminals E1 and TE1 is
disconnected. Diagnostic codes will display from smallest to largest
number.
9) After completing check, disconnect jumper wires that
connect terminals TE1 and TE2 to terminal E1 on DLC. Diagnostic Code
43 will set if engine is not cranked when entering test mode. This is
normal. If automatic transmission is in "D", 2, "L" or "R", A/C switch
is in ON position or accelerator pedal is depressed, Code 51 will set.
This is normal.
10) Identify and record diagnostic trouble codes. See NOTES
ON TROUBLE CODES. For additional information on trouble codes, see
DIAGNOSTIC TROUBLE CODE DEFINITIONS table and appropriate DIAGNOSTIC
TROUBLE CODE IDENTIFICATION table. After reading diagnostic trouble
code definition and identification, perform appropriate diagnostic
trouble code chart. To clear codes, see CLEARING CODES.
Momentary Interruption Test
If Code 13, 22, 24, 41 or 47 is stored in ECM memory during
diagnosis and no trouble can be found with these circuits, perform
MOMENTARY INTERRUPTION TEST.
1) Clear codes from ECM memory. See CLEARING CODES. With
ignition off, connect a jumper wire between terminals E1 and TE2 of
DLC No. 1 or 2. See Fig. 2.
2) Start engine. Ensure MIL goes out. Pull lightly on wires,
and apply vibration to connectors and relays associated with
diagnostic code that is set.
3) If MIL illuminates during this test, a fault is in
indicated connector or location in wiring harness. Repair as
necessary.
4) Clear diagnostic codes. Start engine. If MIL does not go
out, check thoroughly for faulty connections. Perform MOMENTARY
INTERRUPTION TEST again. If MIL still will not go out, check and
replace ECM as necessary. See COMPUTERIZED ENGINE CONTROLS in
appropriate I - SYSTEM/COMPONENT TESTS article.
NOTE: Electronically Controlled Transaxle/Transmission (ECT) uses
same ECM as EFI system. For ECT diagnostics, see the
TRANSMISSION SERVICING article.
NOTES ON TROUBLE CODES
1) When certain malfunctions or trouble codes initially
occur, they will be temporarily stored in ECM memory, but MIL on
instrument panel will not come on.
2) The second time malfunction or trouble code is detected,
MIL on instrument panel will then come on, provided ignition is turned
off and then back on after malfunction or trouble code was first
detected. This is referred to as the Two Trip Detection Logic and only
applies to specified trouble codes. See TWO TRIP DETECTION LOGIC
TROUBLE CODES table.
3) In Normal Mode, MIL on instrument panel will go off after
malfunction is repaired, but all trouble codes except ECM non-memory
Trouble Codes 16, 43, 51 and 53 will be retained in ECM memory until
cleared. ECM non-memory trouble codes are not stored in ECM memory.
4) In Test Mode, all trouble codes except ECM non-memory
Trouble Codes 16, 43, 51 and 53 are retained in ECM memory, even with
ignition off and repairs made, until cleared.
NOTE: When road testing vehicle in Test Mode, the Two Trip
Detection Logic will not function. In Test Mode, the MIL on
instrument panel will come on the first time malfunction or
trouble code is detected.
TWO TRIP DETECTION LOGIC TROUBLE CODES TABLE
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Old Mar 24, 2003 | 08:24 PM
  #3  
ursrob's Avatar
ursrob
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From: selden
Default

Thanks Khark.That's exactly what I wanted.
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