Automotive Code Reader/Code Scanner Fault Codes from the 1986/7 Shelby GLHS

Fault Codes for the 1986/1987 Shelby GLHS
(and possibly other Chrysler vehicles with the 2.2 liter four)

View fault codes for 1988 Dodge Caravan (Mitsubishi injected 3.0 liter V-6). Return to Ellsworth's speed sensor page. The codes displayed here may be read with an automotive code reader/code scanner, or using the technique detailed below, on your dashboard's "Power Loss" lamp.

To read a vehicle's fault codes, perform the following procedure:

Begin with the vehicle's engine turned OFF
Turn the key from OFF to ON (without turning all the way to START) three times,
leaving the key in the ON position. The pattern should be ON-OFF-ON-OFF-ON.
Observe the "Power Loss" lamp in the vehicle's instrument panel. The lamp will
flash slowly. Fault codes are all two-digit values. Values will be separated by long pauses.
- Example: ON-PAUSE-ON-OFF-ON-PAUSE-ON-OFF-ON-OFF-ON-OFF-ON-
  OFF-ON-PAUSE-ON-OFF-ON-OFF-ON-OFF-ON-OFF-ON
- This pattern is interpreted as 12, 55

Code
Type
Power
Loss
Limit
Lamp
Circuit
When Monitored By The Logic Module
When Put into Memory
ATM Test Code

11
Fault
No Distributor Signal During cranking. if no distributor signal is pres-ent since the battery was disconnected.
None

12
Indication
No Battery Feed to the Logic Module All the time when the ignition switch is on. If the battery feed to the logic module has been disconnected within the last 20-40 engine starts.
None

13
Fault
Yes M.A.P.. Sensor (Vacuum) When the throttle is closed during crank-ing and after the en-gine starts. If the M.A.P.. sensor vacuum level does not change between cranking and when the engine starts.
None

14
Fault
Yes M.A.P.. Sensor (Electrical) All the time when the ignition switch is on. If the M.A.P.. sensor signal is below .02 or above 4.9 volts.
None

15
Fault
No Vehicle Speed Sensor Over a 7 second period during decel from highway speeds when the throttle is closed. If the speed sensor signal indicates less than 2 mph when the vehicle is moving.
None

16
Fault
Yes Battery Voltage
Sensing (Charging System) All the time after one minute from when the engine starts. If the battery sensing voltage drops below 4 or between 7_ and 8_ volts for more than 20 seconds.
None

17
Fault
Yes Detonation sensor All the time when the engine is running. If there is no knock signal above 5000 engine rpm for 3 seconds.

21
Fault
No Oxygen Sensor All the time after 12 minutes from when the engine starts. If there is no oxygen sensor signal for more than 22 seconds when in closed loop.
None

22
Fault
Yes Engine Coolant Sensor All the time when the ignition switch is on. If the coolant sensor voltage is above 4.96 volts when the engine is cold or below .51 volts when the engine is warm.
None

23
Fault
Yes Charge tempera-ture sensor All the time when the ignition switch is on. If the Charge temperature sen-sor voltage is above 4.98 or below .06.
None

24
Fault
Yes Throttle Position Sensor All the time when the ignition switch is on. If the throttle position sensor signal is below .16 or above 4.7 volts.
None

25
Fault
No Automatic Idle
Speed Motor
(AIS) Only when the AIS system is required to control the engine speed. If proper voltage in the AIS system is not present. NOTE: Open circuit will not activate code.
03

26
Fault
No Injector 1 and 2 During cranking. If injectors 1 and 2 do not fire correctly.
02

27
Fault
No
Injectors 3 and 4 During cranking. If injectors 3 and 4 do not fire correctly.
02

31
Fault
No Canister Purge Solenoid All the time when the ignition switch is on. If the solenoid does not turn on and off when it should.
07

32
Fault
No Power Loss/ Power Limit Lamp All the time when the ignition switch Is on. If the lamp does not turn on and off when it should.
None

33
Fault
No A/C Cutout Relay All the time when the ignition switch Is on. If the relay does not turn on and off when it should.
05

34
Fault
No E.G.R.. Solenoid All the time when the ignition switch is on If the solenoid does not turn on and off when It should.
08

35
Fault
No Radiator Fan Relay Circuit All the time when the ignition switch Is on. If the relay does not turn on and off when It should.
04

36
Fault
Yes Wastegate con-trol solenoid All the time when the ignition switch is on. If the solenoid does not turn on and off when It should.
09

37
Fault
No Baro Read Solenoid All the time when the ignition switch is on. lithe solenoid does not turn on and off when it should.
10

41
Fault
No Alternator Field Control (Charg-ing System) All the time when the ignition switch is on. If the field control fails to switch properly.
None

42
Fault
No Auto Shutdown All the time when the ignition switch is on. If the control voltage of the relay pull in coil in the power module is not correct.
06

43
Fault
No Spark Control All the time when the ignition switch is on. If the, spark control interface fails to switch properly.
01

44
Fault
No Battery Temperature Sensor
(Charging
System) All the time when the ignition switch is on. If the battery temperature sen-sor signal is below .04 or above 4.9 volts.
None

45
Fault
Yes Overboost Monitor All the time when the engine is running. When MAP. sensor signal ex-ceed a predetermine amount of boost indication.
None

46
Fault
Yes Battery Voltage Sensing (Charging System) All the time when the engine is running. If the battery sense voltage is more than 1 volt above the de sired control voltage for more than 20 seconds.
None

47
Fault
No Battery Voltage Sensing (Charg-ing System) When the engine has been running for more than 6 minutes, engine temperature above 160íF and engine rpm above 1,500 rpm. If the battery sense voltage is less than 1 volt below the de sired control voltage for more than 20 seconds.
None

51
Fault
No Oxygen Feed-back System During all closed loop conditions. If the system stays lean for more than 2 minutes.
None

52
Fault
No Oxygen Feed-back System During all closed loop conditions. If the system stays rich for more than 2 minutes.
None

53
Fault
No Logic Module All the time in the di-agnostic mode. if the logic module fails.
None

54
Fault
Yes Distributor sync. pickup All the time when the engine is running. If there is no distributor sync. pickup signal.
None

55
indication
No Indicates end of diagnostic mode.
None

88 Indication No Indicates start of diagnostic mode. NOTE: This code must appear first in the diagnostic mode or fault codes will be inaccurate.

0 Indication No Indicates oxygen feedback system is lean with the engine running.
None

1 Indication No Indicates oxygen feedback
system is rich with the engine running.

8 Indication No Knock Circuit Indicates knock sensor system is detecting knock.
None

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Code	Type	Power Loss Limit Lamp	Circuit	When Monitored By The Logic Module	When Put into Memory	ATM Test Code
11	Fault	No	Distributor Signal	During cranking.	if no distributor signal is pres-ent since the battery was disconnected.	None
12	Indication	No	Battery Feed to the Logic Module	All the time when the ignition switch is on.	If the battery feed to the logic module has been disconnected within the last 20-40 engine starts.	None
13	Fault	Yes	M.A.P.. Sensor (Vacuum)	When the throttle is closed during crank-ing and after the en-gine starts.	If the M.A.P.. sensor vacuum level does not change between cranking and when the engine starts.	None
14	Fault	Yes	M.A.P.. Sensor (Electrical)	All the time when the ignition switch is on.	If the M.A.P.. sensor signal is below .02 or above 4.9 volts.	None
15	Fault	No	Vehicle Speed Sensor	Over a 7 second period during decel from highway speeds when the throttle is closed.	If the speed sensor signal indicates less than 2 mph when the vehicle is moving.	None
16	Fault	Yes	Battery Voltage Sensing (Charging System)	All the time after one minute from when the engine starts.	If the battery sensing voltage drops below 4 or between 7_ and 8_ volts for more than 20 seconds.	None
17	Fault	Yes	Detonation sensor	All the time when the engine is running.	If there is no knock signal above 5000 engine rpm for 3 seconds.
21	Fault	No	Oxygen Sensor	All the time after 12 minutes from when the engine starts.	If there is no oxygen sensor signal for more than 22 seconds when in closed loop.	None
22	Fault	Yes	Engine Coolant Sensor	All the time when the ignition switch is on.	If the coolant sensor voltage is above 4.96 volts when the engine is cold or below .51 volts when the engine is warm.	None
23	Fault	Yes	Charge tempera-ture sensor	All the time when the ignition switch is on.	If the Charge temperature sen-sor voltage is above 4.98 or below .06.	None
24	Fault	Yes	Throttle Position Sensor	All the time when the ignition switch is on.	If the throttle position sensor signal is below .16 or above 4.7 volts.	None
25	Fault	No	Automatic Idle Speed Motor (AIS)	Only when the AIS system is required to control the engine speed.	If proper voltage in the AIS system is not present. NOTE: Open circuit will not activate code.	03
26	Fault	No	Injector 1 and 2	During cranking.	If injectors 1 and 2 do not fire correctly.	02
27	Fault	No	Injectors 3 and 4	During cranking.	If injectors 3 and 4 do not fire correctly.	02
31	Fault	No	Canister Purge Solenoid	All the time when the ignition switch is on.	If the solenoid does not turn on and off when it should.	07
32	Fault	No	Power Loss/ Power Limit Lamp	All the time when the ignition switch Is on.	If the lamp does not turn on and off when it should.	None
33	Fault	No	A/C Cutout Relay	All the time when the ignition switch Is on.	If the relay does not turn on and off when it should.	05
34	Fault	No	E.G.R.. Solenoid	All the time when the ignition switch is on	If the solenoid does not turn on and off when It should.	08
35	Fault	No	Radiator Fan Relay Circuit	All the time when the ignition switch Is on.	If the relay does not turn on and off when It should.	04
36	Fault	Yes	Wastegate con-trol solenoid	All the time when the ignition switch is on.	If the solenoid does not turn on and off when It should.	09
37	Fault	No	Baro Read Solenoid	All the time when the ignition switch is on.	lithe solenoid does not turn on and off when it should.	10
41	Fault	No	Alternator Field Control (Charg-ing System)	All the time when the ignition switch is on.	If the field control fails to switch properly.	None
42	Fault	No	Auto Shutdown	All the time when the ignition switch is on.	If the control voltage of the relay pull in coil in the power module is not correct.	06
43	Fault	No	Spark Control	All the time when the ignition switch is on.	If the, spark control interface fails to switch properly.	01
44	Fault	No	Battery Temperature Sensor (Charging System)	All the time when the ignition switch is on.	If the battery temperature sen-sor signal is below .04 or above 4.9 volts.	None
45	Fault	Yes	Overboost Monitor	All the time when the engine is running.	When MAP. sensor signal ex-ceed a predetermine amount of boost indication.	None
46	Fault	Yes	Battery Voltage Sensing (Charging System)	All the time when the engine is running.	If the battery sense voltage is more than 1 volt above the de sired control voltage for more than 20 seconds.	None
47	Fault	No	Battery Voltage Sensing (Charg-ing System)	When the engine has been running for more than 6 minutes, engine temperature above 160íF and engine rpm above 1,500 rpm.	If the battery sense voltage is less than 1 volt below the de sired control voltage for more than 20 seconds.	None
51	Fault	No	Oxygen Feed-back System	During all closed loop conditions.	If the system stays lean for more than 2 minutes.	None
52	Fault	No	Oxygen Feed-back System	During all closed loop conditions.	If the system stays rich for more than 2 minutes.	None
53	Fault	No	Logic Module	All the time in the di-agnostic mode.	if the logic module fails.	None
54	Fault	Yes	Distributor sync. pickup	All the time when the engine is running.	If there is no distributor sync. pickup signal.	None
55	indication	No			Indicates end of diagnostic mode.	None
88	Indication	No			Indicates start of diagnostic mode. NOTE: This code must appear first in the diagnostic mode or fault codes will be inaccurate.
0	Indication	No			Indicates oxygen feedback system is lean with the engine running.	None
1	Indication	No			Indicates oxygen feedback system is rich with the engine running.
8	Indication	No	Knock Circuit		Indicates knock sensor system is detecting knock.	None