Electronic Engine Control IV (EEC-IV)
Key On, Engine Off Codes |
11 |
System Pass. |
13 |
Idle Speed Control Motor did not move. |
15 |
Readout Memory Test failed. |
16 |
Ignition Diagnostic Module (2.9L, 3.0L & 4.0L). |
19 |
Power Processor Check (2.3L HSC EFI). |
21 |
Engine Coolant Temperature (ECT) Sensor out of self test
Range. |
22 |
Manifold Absolute Pressure (MAP) Sensor circuit failure or out
of range.. |
23 |
Throttle Position Sensor out of range.. |
23 |
Fuel Injector Pump Lever Sensor Input is out of self test
Range (Diesel). |
24 |
Intake Air Temperature/Air Charge Temperature Sensor is out of
self test Range. |
26 |
Mass Air Flow/Vane Air Flow Sensor out of self test Range. |
26 |
Transmission Fluid Temperature Sensor Input out of self test
Range (5.0L, 5.8L, 7.3L & 7.5L Truck). |
28 |
Vane Air Temperature Sensor Input out of self test Range (1.9L
EFI). |
31 |
EGR Valve Position/Pressure Feedback EGR circuit below minimum
voltage. |
32 |
EGR Valve Position/Pressure Feedback EGR voltage below closed
voltage (other vehicles). |
34 |
Defective EGR Pressure Transducer Sensor (1.9L CFI, 2.3L HSC
EFI & 3.0L). |
34 |
EGR Valve Position/Pressure Feedback EGR voltage above closed
Limit (other vehicles). |
35 |
EGR Valve Position/EGR Pressure Feedback. EGR circuit above
maximum voltage. |
47 |
4x4 Switch is closed. |
51 |
Engine Coolant Temperature circuit open. |
52 |
Power Steering Pressure Switch circuit open. |
53 |
Throttle Position Sensor circuit above maximum voltage. |
53 |
Fuel Injector Pump Lever Sensor Input is Greater than self
test (Diesel). |
54 |
Intake Air Temperature/Air Charge Temperature circuit open. |
56 |
Transmission Fluid Temperature circuit open. |
56 |
Mass Air Flow/Vane Air Flow Sensor circuit above maximum
voltage. |
58 |
Idle Tracking Switch circuit open or grounded (CFI). |
58 |
Vane Air Temperature Sensor Input Greater than self test
maximum (EFI). |
59 |
Low Speed Fuel Pump circuit failure, Battery to PCM (3.0L
SHO). |
59 |
AXOD 4/3 Pressure Switch circuit failed closed. |
61 |
Engine Coolant Temperature Sensor circuit grounded. |
62 |
AXOD 4/3 or 3/2 Pressure Switch circuit grounded. |
63 |
Throttle Position Sensor circuit below minimum voltage. |
63 |
Fuel Injection Pump Lever Sensor Input is less than self test
minimum (Diesel). |
64 |
Intake Air Temperature/Air Charge Temperature circuit
grounded. |
66 |
Vane Air Flow Sensor Input less than self test minimum (1.9L
MFI & 2.3L Turbo). |
66 |
Transmission Fluid Temperature circuit grounded (other
vehicles). |
67 |
Park Neutral Position Switch circuit open - A/C on. |
67 |
Manual Lever Position Sensor out of Range - A/C on. |
67 |
A/C Input High (2.5L TBI). |
68 |
Idle Tracking Switch closed (1.9L, 2.3L, 2.5L & 3.8L CFI). |
68 |
Vane Air Temperature Sensor Input less than self test minimum
(1.9L MFI & 2.3L Turbo). |
69 |
AXOD 3/2 Pressure Switch failed closed (3.8L SFI). |
73 |
Insufficient Throttle Position change during Dynamic Response
Test. |
79 |
A/C on/Defrost on during self test. |
81 |
Secondary Air Diverter circuit failure. |
81 |
Turbo Boost (2.3L Turbo). |
81 |
Insufficient IAS Output voltage change When Solenoid is
Activated (3.0L SHO). |
82 |
Secondary Air Bypass circuit failure. |
82 |
Integrated Relay Control Module (2.3L Turbo). |
82 |
Supercharger Bypass circuit failure (3.8L SC). |
83 |
Integrated Relay Control Module (2.3L Turbo & 2.5L). |
83 |
High Electric Drive Fan circuit failure (1.9L & 2.5L SFI). |
83 |
EVP/EGRC/EGRV (2.3L OHC & 3.8L CFI). |
83 |
Low Speed Fuel Pump Relay circuit open (3.0L SHO). |
83 |
Integrated Relay Control Module (3.8L Turbo). |
83 |
High Electric Drive Fan circuit failure (3.8L SFI & 3.8L
SC). |
84 |
EGR Valve Position/Pressure Feedback EGR/EGR Control circuit
failure. |
85 |
Shift Solenoid 3/4-4/3 (2.3L Turbo). |
85 |
CANP circuit failure (other vehicles). |
86 |
Shift Solenoid circuit failure (2.9L 3.0L & 4.0L). |
87 |
Primary Fuel Pump circuit failure. |
87 |
Integrated Relay Control Module (2.3L Turbo, 2.5L & 3.8L
MFI). |
88 |
Shift Solenoid 3/4-4/3 (2.3 Turbo). |
88 |
Integrated Relay Control Module (2.5 L HSC & 3.8L EFI). |
88 |
Electric Drive Fan circuit failure (2.5L, 3.0L SHO & 3.8L
SFI). |
89 |
Converter Clutch Override circuit failure (2.9L, 3.0L &
4.0L). |
89 |
Exhaust Heat Control (3.8L CFI). |
91 |
Shift Solenoid 1 circuit failure. |
92 |
Shift Solenoid 2 circuit failure. |
93 |
Throttle Position Sensor Input Low at maximum D.C. Motor
Extension (1.9L, 2.3L & 2.5L TBI). |
93 |
Converter Clutch Solenoid circuit failure (other vehicles). |
94 |
Torque Converter Clutch Solenoid circuit failure. |
95 |
Integrated Relay Control Module (2.5L HSC & 3.8L EFI). |
95 |
Fuel Pump circuit open-PCM to Motor Ground (other vehicles). |
96 |
Integrated Relay Control Module (2.5L HSC & 3.8L EFI). |
96 |
High Speed Fuel Pump Relay circuit open (3.0L SHO). |
96 |
Fuel Pump circuit open - Battery to PCM (other vehicles). |
97 |
Transmission Control Indicator Lamp circuit failure. |
98 |
Electronic Pressure Control Driver open In PCM (Diesel). |
99 |
Electronic Pressure Control circuit failure. |
111 |
System Pass. |
112 |
Intake Air Temperature/Air Charge Temperature Sensor circuit
below minimum voltage. |
113 |
Intake Air Temperature/Air Charge Temperature Sensor circuit
above maximum voltage. |
114 |
Intake Air Temperature/Air Charge Temperature Higher or Lower
than Expected. |
116 |
Engine Coolant Temperature Higher or Lower than Expected. |
117 |
Engine Coolant Temperature Sensor circuit below minimum
voltage. |
118 |
Engine Coolant Temperature Sensor circuit above maximum
voltage. |
121 |
Closed Throttle voltage Higher or Lower than Expected. |
121 |
Indicates Throttle Position voltage Inconsistent with Mass Air
Flow Sensor. |
122 |
Throttle Position Sensor circuit below minimum voltage. |
123 |
Throttle Position Sensor circuit above maximum voltage. |
126 |
Manifold Absolute Pressure/Barometric Pressure Sensor Higher
or Lower than Expected. |
158 |
Mass Air Flow Sensor circuit above maximum voltage. |
159 |
Mass Air Flow Higher or Lower than Expected. |
193 |
Flexible Fuel Sensor circuit failure. |
226 |
Ignition Diagnostic Module Signal not Received (EI). |
327 |
EGR circuit below minimum voltage. |
328 |
EGR Valve Position Sensor closed Valve voltage Lower than
Expected. |
334 |
EGR Valve Position Sensor closed Valve voltage Higher than
Expected. |
335 |
Pressure Feedback EGR Sensor voltage Higher or Lower than
Expected. |
337 |
EGR Valve Position/Pressure Feedback EGR circuit above maximum
voltage. |
341 |
Octane Adjust Service Pin open. |
511 |
Read out Memory Test failure. |
513 |
PCM Internal voltage failure. |
519 |
Power Steering Pressure Switch circuit open. |
522 |
Vehicle not In Park or Neutral. |
524 |
Low Speed Fuel Pump circuit open. |
525 |
Vehicle in Gear with A/C on. |
526 |
Neutral Position Switch circuit closed, A/C on. |
527 |
Neutral Drive Switch circuit open, A/C on. |
539 |
A/C or Defrost on. |
542 |
Fuel Pump circuit open-PCM to Motor Ground. |
543 |
Fuel Pump circuit open-Battery to Powertrain Control Module
(PCM). |
551 |
Intake Air Control circuit failure. |
552 |
AIR Bypass circuit failure. |
553 |
AIR Bypass circuit failure. |
554 |
Fuel Pump Relay Control circuit failure. |
556 |
Fuel Pump Relay Primary circuit failure. |
557 |
Low Speed Fuel Pump Primary circuit failure. |
558 |
EGR Vacuum Regulator circuit failure. |
559 |
A/C on Relay circuit failure. |
563 |
High Speed Electric Fan circuit failure. |
564 |
Electric Fan circuit failure. |
565 |
Canister Purge circuit failure. |
566 |
Shift Solenoid circuit failure. |
569 |
Auxiliary Canister Purge circuit failure. |
571 |
EGR circuit failure. |
572 |
EGR circuit failure. |
582 |
Fan circuit open. |
587 |
Vehicle Control Relay Module Communication failure. |
621 |
Shift Solenoid 1 circuit failure. |
622 |
Shift Solenoid 2 circuit failure. |
623 |
Transmission Control Indicator Lamp circuit failure. |
624 |
Electronic Pressure Control circuit failure. |
625 |
Hard Fault is Present (5.8L). |
625 |
Electronic Pressure Control Driver open in PCM (other
vehicles). |
626 |
Converter Clutch Solenoid circuit failure. |
627 |
Torque Converter Clutch Solenoid circuit failure. |
631 |
Transmission Control Indicator Lamp circuit failure. |
633 |
4x4 Switch closed. |
634 |
Manual Lever Position Sensor voltage higher or lower than
expected. |
636 |
Transmission Fluid Temperature higher or lower than expected. |
637 |
Transmission Fluid Temperature Sensor circuit above maximum
voltage. |
638 |
Transmission Fluid Temperature Sensor circuit below minimum
voltage. |
641 |
Shift Solenoid 3 circuit failure. |
643 |
Torque Converter Clutch circuit failure. |
654 |
Manual Lever Position Sensor Indicating not in Park during
self test. |
662 |
Shift Solenoid 2 circuit. |
667 |
Transmission Range Sensor circuit below minimum voltage. |
668 |
Transmission Range Sensor circuit above maximum voltage. |
675 |
Transmission Range Sensor circuit voltage out of range. |
998 |
Hard Fault Present. |
The Diagnostic Codes and Explanations are
derived from Manufacturer supplied Technical Data. WesTech does not guarantee the
accuracy of this Information nor can it be held liable for providing it. |