Engine Controls - Tests W/codes - 3.3L: Other Eagle Vision I

Hard Failures

Hard failures cause malfunction indicator (CHECK ENGINE) light to glow and remain on until the malfunction is repaired. If light comes on and remains on (light may flash) during vehicle operation, cause of malfunction must be determined using self-diagnostic tests. If a sensor fails, PCM will use a substitute value in its calculations, allowing engine to operate in limp-in mode. In this condition, vehicle will run, but driveability may be poor.

Intermittent Failures

Intermittent failures may cause malfunction indicator (CHECK ENGINE) light to flicker or stay on until the intermittent trouble code goes away. However, the corresponding trouble code will be retained in PCM memory. If related trouble code does not reoccur within a certain time frame, related trouble code will be erased from PCM memory. Intermittent failures can be caused by a faulty sensor, bad connector or wiring related problems.

SERVICE PRECAUTIONS

Before proceeding with diagnosis, the following precautions must be followed

1. ALWAYS relieve fuel pressure before disconnecting any fuel injection-related component. DO NOT allow fuel to contact engine or electrical components. See «FUEL PRESSURE RELEASE»(ref-10827-S13894542942000111000000) .
2. When battery is disconnected, vehicle computer and memory systems may lose memory data. Driveability problems may exist until computer systems have completed a relearn cycle. See «COMPUTER RELEARN PROCEDURES»(ref-10824) article in the GENERAL INFORMATION section before disconnecting battery.
3. Vehicle must have a fully charged battery and functional charging system.
4. Probe PCM 60-pin connector from pin side. DO NOT backprobe PCM connector.
5. DO NOT cause short circuits when performing electrical tests. This will set additional trouble codes, making diagnosis of original problem more difficult.
6. DO NOT use a test light instead of a voltmeter.
7. When checking for spark, ensure coil wire is NO more than 1/4" from ground. If coil wire is more than 1/4" from ground, damage to vehicle electronics and/or PCM may result.
8. DO NOT prolong testing of fuel injectors or engine may hydrostatically (liquid) lock.
9. Always repair lowest trouble code number (CHECK ENGINE light) or first trouble code message displayed (DRB) first.
10. Always perform verification procedure test after repairs are made.
11. Always disconnect DRB after use.
12. Always disconnect DRB before charging battery.

USING DRB

Note. Although other scan testers are available, manufacturer recommends using DRB (Diagnostic Readout Box) to diagnose the system.

Ensure DRB is connected to engine data link connector (DLC) located under driver's side of dashboard, to right of steering column. (Scheme 24) Ensure correct cartridge is installed in DRB for vehicle and system being diagnosed. Menu selections will vary depending on vehicle and system being diagnosed. Follow DRB screen prompts to actuate, adjust, monitor, reset, test and diagnose system as necessary.

Scheme 24

DRB is grounded through engine diagnostic connector, only one volt-ohmmeter test lead is required when using volt-ohmmeter option. DRB volt-ohmmeter should only be used when self-diagnostic tests require the use of this option.

If DRB has a blank screen or displays RAM TEST FAILURE, CARTRIDGE ERROR, KEY PAD TEST FAILURE or LOW OR HIGH BATTERY, this indicates a DRB failure. To diagnose/correct conditions, see VEHICLE COMMUNICATIONS TESTS in TESTS W/CODES - BODY CONTROL COMPUTER article in the ENGINE PERFORMANCE section.

FUEL PRESSURE RELEASE

MULTIPOINT FUEL INJECTION

1. Turn ignition off. Disconnect negative battery cable. Slowly open fuel tank cap to release pressure in tank. Remove fuel rail pressure test port cap. Place open end of Fuel Pressure Release Hose (C-4799-1) in approved gasoline container. NOTE: Fuel Pressure Gauge (C-4799-A) contains Hose (C-4799-1).
2. Connect other end of pressure release hose to test port. As fuel pressure release hose is tightened onto fuel rail pressure test port, fuel pressure will bleed-off into container.

CODE 11

DRB displays NO CRANK REFERENCE SIGNAL AT PCM. Condition is: no distributor, crankshaft, or camshaft reference signal picked up during cranking.

CODE 12

DRB displays BATTERY DISCONNECT. Condition is: direct battery voltage to PCM was disconnected within the last 50 key-on cycles.

CODE 13

DRB displays SLOW CHANGE IN IDLE MAP SENSOR SIGNAL. Condition is: Manifold Absolute Pressure (MAP) sensor output change slower and/or smaller than expected.

DRB displays NO CHANGE IN MAP FROM START TO RUN. Condition is: no difference recognized between Manifold Absolute Pressure (MAP) reading and barometric (atmospheric) pressure reading at start-up.

CODE 14

DRB displays MAP VOLTAGE TOO LOW. Condition is: Manifold Absolute Pressure (MAP) sensor input less than minimum acceptable voltage.

DRB displays MAP VOLTAGE TOO HIGH. Condition is: Manifold Absolute Pressure (MAP) sensor input more than maximum acceptable voltage.

CODE 15

DRB displays NO VEHICLE SPEED SENSOR SIGNAL. Condition is: no Vehicle Speed Sensor (VSS) signal detected with road load conditions.

CODE 16

DRB displays KNOCK SENSOR #1 CIRCUIT or KNOCK SENSOR #2 CIRCUIT. Condition is: open or shorted condition detected in knock sensor circuit.

CODE 17

DRB displays ENGINE IS COLD TOO LONG. Condition is: coolant temperature stays less than normal operating temperature during vehicle operation.

CODE 21

DRB displays O2S STAYS AT CENTER, LEFT O2S STAYS AT CENTER, or RIGHT O2S STAYS AT CENTER. Condition is: no rich or lean signal detected from oxygen sensor input.

DRB displays O2S SHORTED TO VOLTAGE, LEFT O2S SHORTED TO VOLTAGE, or RIGHT O2S SHORTED TO VOLTAGE. Condition is: oxygen sensor input voltage maintained at more than normal operating range.

CODE 22

DRB displays ECT SENSOR VOLTAGE TOO LOW. Condition is: Engine Coolant Temperature (ECT) sensor input less than minimum acceptable voltage.

DRB displays ECT SENSOR VOLTAGE TOO HIGH. Condition is: Engine Coolant Temperature (ECT) sensor input more than maximum acceptable voltage.

CODE 23

DRB displays INTAKE AIR TEMPERATURE SENSOR VOLTAGE LOW. Condition is: Intake Air Temperature (IAT) sensor input less than minimum acceptable voltage.

DRB displays INTAKE AIR TEMPERATURE SENSOR VOLTAGE HIGH. Condition is: Intake Air Temperature (IAT) sensor input more than maximum acceptable voltage.

CODE 24

DRB displays THROTTLE POSITION SENSOR VOLTAGE LOW. Condition is: Throttle Position Sensor (TPS) input less than minimum acceptable voltage.

DRB displays THROTTLE POSITION SENSOR VOLTAGE HIGH. Condition is: Throttle Position Sensor (TPS) input more than maximum acceptable voltage.

CODE 25

DRB displays IDLE AIR CONTROL MOTOR CIRCUITS. Condition is: open or shorted condition detected in one or more Idle Air Control (IAC) motor circuits.

CODE 27

DRB displays INJECTOR CONTROL CIRCUIT or INJECTOR #1-6 CONTROL CIRCUIT. Condition is: injector output driver does not respond properly to Powertrain Control Module (PCM) control signal.

CODE 31

DRB displays EVAP SOLENOID CIRCUIT. Condition is: open or shorted condition detected in purge solenoid circuit.

CODE 32

DRB displays EGR SOLENOID CIRCUIT. Condition is: open or shorted condition detected in Exhaust Gas Recirculation (EGR) transducer solenoid circuit.

DRB displays EGR SYSTEM FAILURE. Condition is: Powertrain Control Module (PCM) did not detect required air/fuel change during diagnostic test.

CODE 33

DRB displays A/C CLUTCH RELAY CIRCUIT. Condition is: open or shorted condition detected in A/C clutch relay circuit.

DRB displays A/C PRESSURE SENSOR VOLTAGE TOO LOW. Condition is: A/C pressure transducer input less than minimum acceptable voltage.

DRB displays A/C PRESSURE SENSOR VOLTAGE TOO HIGH. Condition is: A/C pressure transducer input more than maximum acceptable voltage.

CODE 34

DRB displays SPEED CONTROL SOLENOID CIRCUITS. Condition is: open or shorted condition detected in Speed Control (S/C) vacuum or vent solenoid circuits.

DRB displays SPEED CONTROL SWITCH ALWAYS LOW. Condition is: speed control switch input less than minimum acceptable voltage.

DRB displays SPEED CONTROL SWITCH ALWAYS HIGH. Condition is: speed control switch input more than maximum acceptable voltage.

CODE 35

DRB displays RADIATOR FAN RELAY CTRL CIRCUIT. Condition is: open or shorted condition detected in radiator fan relay circuit.

DRB displays LOW SPEED FAN CTRL RELAY CIRCUIT. Condition is: open or shorted condition detected in low speed radiator fan relay circuit.

DRB displays HIGH SPEED FAN RELAY CTRL CIRCUIT. Condition is: open or shorted condition detected in high speed radiator fan relay circuit.

CODE 37

DRB displays TORQUE CONVERTER CLUTCH SOLENOID CIRCUIT. Condition is: open or shorted condition detected in Torque Converter Clutch (TCC) solenoid circuit.

CODE 41

DRB displays GENERATOR FIELD NOT SWITCHING PROPERLY. Condition is: open or shorted condition detected in generator field control circuit.

CODE 42

DRB displays AUTO SHUTDOWN RELAY CONTROL CIRCUIT. Condition is: open or shorted condition detected in Auto Shutdown (ASD) relay circuit.

DRB displays NO ASD RELAY OUTPUT VOLTAGE AT PCM. Condition is: PCM did not detect Auto Shutdown (ASD) sense signal after grounding ASD relay.

CODE 43

DRB displays IGNITION COIL #1-3 PRIMARY CIRCUIT. Condition is: peak primary circuit current not achieved with maximum dwell time.

CODE 44

DRB displays BATTERY TEMP SENSOR VOLTS OUT OF LIMIT. Condition is: open or shorted condition exists in Engine Coolant Temperature (ECT) sensor circuit or a problem is present in Powertrain Control Module (PCM) battery temperature voltage circuit.

CODE 46

DRB displays CHARGING SYSTEM VOLTAGE TOO HIGH. Condition is: battery voltage sense input more than target charging voltage during engine operation.

CODE 47

DRB displays CHARGING SYSTEM VOLTAGE TOO LOW. Condition is: battery voltage sense input less than target charging voltage during engine operation.

CODE 51

DRB displays O2S STAYS BELOW CENTER (LEAN), LEFT O2S SIGNAL STAYS BELOW CENTER (LEAN), or RIGHT O2S SIGNAL STAYS BELOW CENTER (LEAN). Condition is: oxygen sensor input indicates lean air/fuel ratio condition during engine operation.

DRB displays LEAN OPERATION AT WIDE OPEN THROTTLE. Condition is: lean air/fuel mixture detected during Wide Open Throttle (WOT) operation. Drain and remove fuel tank. Clean fuel tank to remove contaminants. Replace inlet strainer on fuel pump module.

CODE 52

DRB displays 02S STAYS ABOVE CENTER (RICH), LEFT O2S SIGNAL STAYS ABOVE CENTER (RICH), or RIGHT O2S SIGNAL STAYS ABOVE CENTER (RICH). Condition is: oxygen sensor input indicates rich air/fuel ratio condition during engine operation.

CODE 53

DRB displays INTERNAL CONTROLLER FAILURE or PCM FAILURE SPI COMMUNICATIONS. Condition is: Powertrain Control Module (PCM) detects internal failure.

CODE 54

DRB displays NO CAM SYNC SIGNAL AT PCM. Condition is: no fuel sync signal (camshaft signal) detected during engine cranking.

CODE 55

DRB display will be blank. Completion of trouble code display by malfunction indicator (CHECK ENGINE) light.

CODE 62

DRB displays PCM FAILURE SRI MILE NOT STORED. Condition is: unsuccessful attempt to update SRI mileage.

DRB displays PCM FAILURE SRI MILES NOT STORED. Condition is: unsuccessful attempt to update SPI mileage.

CODE 63

DRB displays PCM FAILURE EEPROM WRITE DENIED. Condition is: unsuccessful attempt to write to an EEPROM location by PCM.

CODE 64

DRB displays FLEX FUEL SENSOR VOLTS TOO LOW. Condition is: methanol concentration sensor input less than minimum acceptable voltage.

DRB displays FLEX FUEL SENSOR VOLTS TOO HIGH. Condition is: methanol concentration sensor input more than maximum acceptable voltage.

DRB displays LOSS OF FLEX FUEL SENSOR CALIBRATION SIGNAL. Condition is: Powertrain Control Module (PCM) did not detect a flex fuel calibration signal from methanol concentration sensor at key-on.

CODE 65

DRB displays MANIFOLD TUNING VALVE SOLENOID CIRCUIT. Condition is: open or shorted condition detected in Manifold Tuning Valve (MTV) solenoid circuit.

CODE 66

DRB displays NO CCD BUS MESSAGES. Condition is: Powertrain Control Module (PCM) did not receive messages from CCD BUS.

DRB displays NO CCD MESSAGES FROM TCM. Condition is: Powertrain Control Module (PCM) did not receive CCD BUS messages from Transmission Control Module (TCM).

DRB displays NO CCD MESSAGES FROM BODY CONTROL MODULE. Condition is: Powertrain Control Module (PCM) did not receive CCD BUS messages from Body Control Module (BCM).

CODE 77

DRB displays SPEED CONTROL POWER RELAY CKT. Condition is: open or shorted condition detected in speed control relay circuit.