Code |
Definitions |
111 |
System
checks OK |
112 |
(O,M)
Intake Air Temperature (IAT) sensor is/was low or grounded - IAT |
113 |
(O,M)
IAT sensor is/was high or open - IAT |
114 |
(O,R)
IAT sensor out of range - IAT |
116 |
(O,R)
Engine Coolant (ECT) sensor out of range - ECT |
117 |
(O,M)
ECT sensor is/was low or grounded - ECT |
118 |
(O,M)
ECT sensor is/was high or open - ECT |
121 |
(O,R,M)
Throttle Position (TP) sensor out of range - TPS |
122 |
(O,M)
TP low (possibly grounded or open circuit) - TPS |
123 |
(O,M)
TP is/was high or short to power - TPS |
124 |
(M)
TP voltage was higher than expected - Fuel control |
125 |
(M)
TP voltage was lower than expected - Fuel control |
126 |
(O,R,M)
MAP or BARO sensor out of range - ">MAP |
128 |
(M)
MAP vacuum has not been changing - check vacuum lines -
">MAP |
129 |
(R)
No MAP or Mass Air Flow sensor change during "goose"
test - MAP MAF |
136 |
(R)
Oxygen sensor not switching/system lean Left or Front HO2S -
Fuel control |
137 |
(R)
Oxygen sensor not switching/system rich Left or Front HO2S -
Fuel control |
138 |
(R)
Fault in Cold Start Injector circuit - Fuel control |
139 |
(M)
Oxygen sensor not switching Left or Front HO2S - Fuel control |
144 |
(M)
Oxygen sensor not switching Single, Right or Rear HO2S - Fuel
control |
157 |
(R,M)
Mass Air Flow signal is/was low or grounded - MAF |
158 |
(O,R,M)
MAF sensor is/was high or short to power - MAF |
159 |
(O,R)
MAF sensor is/was out of range - MAF |
167 |
(R)
No Throttle Position sensor change in "goose" test
(must get at least 25% rotation) - TPS |
171 |
(M)
Oxygen sensor not switching - system was at adaptive limits -
Single, Right or Rear HO2S - Fuel control |
172 |
(R,M)
Oxygen sensor not switching - system is or was lean - Single,
Right or Rear HO2S - Fuel control |
173 |
(R,M)
Oxygen sensor not switching - system is or was rich - Single,
Right or Rear HO2S - Fuel control |
174 |
(M)
Oxygen sensor was slow in switching Single, Right or Rear HO2S -
Fuel control |
175 |
(M)
Oxygen sensor not switching - system was at adaptive limits -
Left or Front HO2S - Fuel control |
176 |
(M)
Oxygen sensor not switching - system is or was lean Left or
Front HO2S - Fuel control |
177 |
(M)
Oxygen sensor not switching - system was rich Left or Front HO2S
- Fuel control |
178 |
(M)
Oxygen sensor was slow in switching Left or Front HO2S - Fuel
control |
179 |
(M)
Fuel system was rich at part throttle Single, Right or Rear HO2S
- Fuel control |
181 |
(M)
Fuel system was lean at part throttle Single, Right or Rear HO2S
- Fuel control |
182 |
(M)
Fuel system was rich at idle Single, Right or Rear HO2S - Fuel
control |
183 |
(M)
Fuel system was lean at idle Single, Right or Rear HO2S - Fuel
control |
184 |
(M)
Mass Air (MAF) output higher than expected - Fuel control |
185 |
(M)
Mass Air (MAF) output lower than expected - Fuel control |
186 |
(M)
Injector pulse width longer than expected or Mass Air Flow (MAF)
lower than expected - Fuel control |
187 |
Injector
pulse width shorter than expected or Mass Air Flow (MAF) higher
than expected - Fuel control |
188 |
(M)
Fuel system was rich at part throttle - Left or Front HO2S -
Fuel control |
189 |
(M)
Fuel system was lean at part throttle - Left or Front HO2S -
Fuel control |
191 |
(M)
Fuel system was rich at idle - Left or Front HO2S - Fuel control |
192 |
(M)
Fuel system was lean at idle - Left or Front HO2S - Fuel control |
193 |
Failure
in Flexible Fuel (FF) sensor circuit - Fuel control |
194 |
(M)
Perform cylinder balance test to check for inoperative injectors |
195 |
(M)
Perform cylinder balance test to check for inoperative injectors |
211 |
(M)
Ignition PIP signal was erratic or missing - Ignition Systems |
212 |
(M)
Ignition TACH signal was erratic (module/wiring) or SPOUT
circuit fault - Ignition Systems |
213 |
(R)
Ignition SPOUT or SAW circuit open or shorted - Ignition Systems |
214 |
(M)
Error in Cylinder ID (CID) circuit or signal - Ignition Systems |
215 |
(M)
Primary circuit failure - ignition coil 1 - Ignition Systems |
216 |
(M)
Primary circuit failure - ignition coil 2 - Ignition Systems |
217 |
(M)
Primary circuit failure - ignition coil 3 - Ignition Systems |
218 |
(M)
IDM signal open or high or left coil pack failure - Ignition
Systems |
219 |
(M)
SPOUT circuit failure, timing defaulted to 10 degrees - follow
code 213 diagnosis |
222 |
(M)
IDM open or high or right coil pack failure - Ignition Systems |
223 |
(M)
Dual Plug (DPI), SPOUT or IDM circuit fault - Ignition Systems |
224 |
(M)
Failure in ignition coil primary circuit - Ignition Systems |
225 |
(R)
Knock sensor not tested (ignore if not pinging) - KS |
226 |
(O)
Ignition Diagnostic Monitor (IDM) signal fault - Ignition
Systems |
232 |
(M)
EI primary coil circuit failure - Ignition Systems |
238 |
(M)
EI primary circuit failure - ignition coil 4 - Ignition Systems |
311 |
(R)
AIR system not working - Single, Right or Rear HO2S - Air
Injection |
312 |
(R)
AIR not diverting - Air Injection |
313 |
(R)
AIR not bypassing - Air Injection |
314 |
(R)
AIR inoperative, Left or Front HO2S - Air Injection |
326 |
(R,M)
Pressure Feedback EGR shows low pressure EGR not seating or not
seating intermittently - PFE |
327 |
(O,R,M)
EGR feedback signal is/was low - EVR or PFE |
328 |
(O,R,M)
EGR Valve Position (EVP) is/was low - EVR |
332 |
(R,M)
EGR did not open/respond during test or if memory code, did not
open intermittantly - EVR or PFE |
334 |
(O,R,M)
EVP sensor is/was high - EVR |
335 |
(O)
EGR feedback signal is/was out of range - EVR or PFE |
336 |
(O,R,M)
PFE sensor signal is/was was high - ">PFE |
337 |
(O,R,M)
EGR feedback signal is/was was high - EVR |
338 |
(M)
Cooling system did not heat up (check cooling system /
thermostat operation) |
339 |
(M)
Cooling system overheated (check cooling system / thermostat
operation) |
341 |
(O)
Octane jumper installed (information only code to notify you if
it is installed) |
411 |
(R)
Idle speed system not controlling idle properly (generally idle
too high) - ISC |
412 |
(R)
Idle speed system not controlling idle properly (generally idle
too low) - ISC |
452 |
(M)
Vehicle Speed Sensor (VSS) problem |
511 |
(O)
No power to PCM pin 1 or bad PCM (processor) |
512 |
(M)
Memory power (PCM pin 1) was interrupted - Was battery
disconnected ? |
513 |
(O)
Replace processor (PCM) (internal failure) |
519 |
(O)
PSP switch/circuit open - PSP |
521 |
(R)
Wheel not turned during test or PSP problem - PSP |
522 |
(O)
Park/Neutral Position (PNP) or Clutch Pedal Position (CPP)
circuit fault - PNP |
|
transmission
MLP sensor out of range in park - Transmissions |
524 |
Problem
in low speed fuel pump circuit - Power / Fuel Pump Circuits |
525 |
(O,M)
Park/Neutral Position (PNP) or Clutch Pedal Position (CPP)
circuit fault - PNP |
528 |
(M)
System shows voltage at pin 10 (is A/C on ?) or pin 30 (PNP, CPP
switch) - PNP |
529 |
(M)
Data Communications Link to processor failure |
|
Service
any EEC codes, erase memory and retest. If code is still present
refer to instrument cluster diagnosis manual. |
533 |
(M)
Data Communications Link to instrument cluster failure - see 529 |
536 |
(O,R,M)
Brake On Off open or shorted to ground - BOO |
538 |
(R)
System did not receive "goose" test - TESTS |
539 |
(O)
System shows voltage at PCM pin 10. Is A/C on ? |
542 |
(O,M)
Fuel pump open, bad ground or always on - - Power / Fuel Pump
Circuits |
543 |
(O)
Fuel pump monitor circuit shows no power - Power / Fuel Pump
Circuits |
|
(M)
(Service 556 code first if present) Fuel pump relay or battery
power feed was open - Power / Fuel Pump Circuits |
551 |
Problem
in Intake Manifold Runner Control (IMRC) solenoid/circuit -
Solenoids |
552 |
(O)
AIRB solenoid/circuit failure - Solenoids |
553 |
(O)
AIRD solenoid/circuit failure - Solenoids |
554 |
(O)
Fuel Press Regulator Control solenoid/circuit fault - Power /
Fuel Pump Circuits |
556 |
(O,M)
Fuel pump relay primary circuit fault - Power / Fuel Pump
Circuits |
557 |
(O,M)
Low speed pump relay primary circuit fault - Power / Fuel Pump
Circuits |
558 |
(O)
EGR vacuum regulator solenoid/circuit failure - EVR or PFE or
Solenoids |
559 |
(O)
A/C relay primary circuit fault - A/C and Fan Circuits |
563 |
(O)
High Fan Control (HFC) circuit failure - A/C and Fan Circuits |
564 |
(O)
Fan Control (FC) circuit failure - A/C and Fan Circuits |
565 |
(O)
Canister Purge 1 solenoid/circuit failure - Solenoids |
566 |
(O)
transmission 3/4 shift solenoid/circuit - Transmissions |
569 |
(O)
Canister Purge 2 solenoid/circuit failure - Solenoids |
578 |
(M)
A/C pressure sensor VREF short to ground - A/C and Fan Circuits |
579 |
(M)
ACP sensor did not change with A/C on - A/C and Fan Circuits |
581 |
(M)
Cooling fan current was excessive - A/C and Fan Circuits |
582 |
(O)
Open cooling fan circuit - A/C and Fan Circuits |
583 |
(M)
Fuel pump current was excessive - Power / Fuel Pump Circuits |
584 |
(M)
Open power ground circuit - Power / Fuel Pump Circuits |
585 |
(M)
A/C clutch current was excessive - A/C and Fan Circuits |
586 |
(M)
Open circuit in A/C clutch - A/C and Fan Circuits |
587 |
(O,
M) Communication problem between PCM and Variable Control Relay
Module (VCRM) - Power / Fuel Pump Circuits |
617 |
(M)
Transmission shift failure (1/2 shift) - Transmissions |
618 |
(M)
Transmission shift failure (2/3 shift) - Transmissions |
619 |
(M)
Transmission shift failure (3/4 shift) - Transmissions |
621 |
(O)
Solenoid/circuit failure - shift solenoid 1 - Transmissions |
622 |
(O)
Solenoid/circuit failure - shift solenoid 2 - Transmissions |
624 |
(O,M)
Solenoid/circuit failure -Electronic Pressure Control (EPC)
current is high - Transmissions |
625 |
(O,M)
Solenoid/circuit failure - Electronic Pressure Control (EPC)
current is low - Transmissions |
626 |
(O)
Transmission Coast Clutch (CCS) Solenoid/circuit fault -
Transmissions |
627 |
(O)
Torque Converter Clutch circuit fault - Transmissions |
628 |
(M)
Excessive converter clutch slippage - Transmissions |
629 |
(O,M)
Torque Converter Clutch circuit fault - Transmissions |
631 |
(O)
Overdrive Cancel Light circuit problem - Transmissions |
632 |
(R)
E4OD - Transmission Control Switch (TCS) should be cycled once
between engine ID and Goose test |
633 |
(O)
4x4L switch should be in 4x2 or 4x4 high for the test |
634 |
(O,M)
Park/Neutral Position (PNP) or Clutch Pedal Position (CPP)
circuit fault |
|
Electronic
shift transmission - Manual Lever Position (MLP) sensor out of
range in PARK - Transmissions |
636 |
(O,R)
Transmission Oil Temperature (TOT) sensor out of range -
Transmissions |
637 |
(O,M)
TOT sensor is/was high or open - Transmissions |
638 |
(O,M)
TOT sensor is/was low or grounded - Transmissions |
639 |
(R,M)
Transmission Speed sensor (TSS) circuit fault - Transmissions |
641 |
(O)
Transmission solenoid/circuit failure Shift Solenoid 3 -
Transmissions |
643 |
(O)(M)
Torque Converter Clutch (TCC) circuit - Transmissions |
645 |
(M)
Transmission 1st gear failure - Transmissions |
646 |
(M)
Transmission 2nd gear failure - Transmissions |
647 |
(M)
Transmission 3rd gear failure - Transmissions |
648 |
(M)
Transmission 4th gear failure - Transmissions |
649 |
(M)
Transmission EPC system failure - Transmissions |
651 |
(M)
Transmission EPC solenoid/circuit fault - Transmissions |
652 |
(O)
Torque Converter Clutch (TCC) circuit fault - Transmissions |
654 |
(O)
Transmission selector not in PARK - Transmissions |
656 |
(M)
Torque Converter Clutch (TCC) slip - Transmissions |
657 |
(M)
Transmission temperature was excessive - Transmissions |
998 |
(R)
Did not pass Key On Engine Off test yet (Get 111 in KOEO first) |
|
(O)
Transmission Electronic Pressure Control (EPC) solenoid/circuit
fault - Transmissions |
Code |
Definitions: |
ACT |
Air
Charge Temperature Sensor |
BP |
See
MAP |
EEC |
Electronic
Engine Control System |
ECT |
Engine
Coolant Temperature Sensor |
EGR |
Exhaust
Gas Recirculation Valve |
EVP |
EGR
Valve Position Sensor |
HEGO |
Heated
Exhaust Gas Oxygen Sensor |
KOEO |
Key
On Engine Off |
KOER |
Key
On Engine Running |
MAF |
Mass
Air Flow Sensor |
MAP |
Manifold
Absolute Pressure Sensor |
MLP |
Manual
Lever Position |
PCM |
Powertrain
Control Module |
SPOUT |
Distributor
Jumper to Allow Initial Timing |
TP |
Throttle
Position Sensor |