Engine Data Monitor Mode (3.5L)
WARNING: This page is about a different car, the 2002 Nissan Altima. However, it is still accessible from the selected car via links, so may be relevant.
For data monitor mode descriptions, see DATA MONITOR MODE DESCRIPTIONS table.
DATA MONITOR MODE DESCRIPTIONS
| Monitored Item | Description |
|---|---|
| ENG SPEED [RPM] | Indicates Engine Speed Computed From Crankshaft Position Sensor (POS) & Camshaft Position Sensor (PHASE) Signal, Accuracy Becomes Poor If Engine Speed Drops Below Idle RPM, If Signal Is Interrupted While Engine Is Running, An Abnormal Value May Be Indicated |
| MAS A/F SE-B1 [V] | Signal Voltage Of Mass Air Flow Sensor Is Displayed, When Engine Is Stopped, A Certain Value Is Indicated |
| COOLAN TEMP/S [°C] Or [°F] | Engine Coolant Temperature (Determined By Signal Voltage Of Engine Coolant Temperature Sensor) Is Displayed, When Engine Coolant Temperature Sensor Is Open Or Short-Circuited, ECM Enters Fail-Safe Mode, Engine Coolant Temperature Determined By ECM Is Displayed |
| H02S1 (B1) Or (B2) [V] | Signal Voltage Of HO2S1 Is Displayed |
| H02S2 (B1) Or (B2) [V] | Signal Voltage Of HO2S2 Is Displayed |
| H02S1 MNTR (B1) Or (B2) [RICH/LEAN] | Display Of HO2S1 Signal During Air-Fuel Ratio Feedback Control: RICH - Means Mixture Became "Rich", & Control Is Being Affected Toward A Leaner Mixture, LEAN - Means & Mixture Became "Lean", & Control Is Being Affected Toward A Rich Mixture, After Turning "ON" Ignition Switch, RICH Is Displayed Until Air-Fuel Mixture Ratio Feedback Control Begins, When Air-Fuel Ratio Feedback Is Clamped, Value Just Before Clamping Is Displayed Continuously. |
| H02S2 MNTR (B1) Or (B2) [RICH/LEAN] | Display Of HO2S2 Signal: RICH - Means Amount Of Oxygen After Three Way Catalyst Is Relatively Small, LEAN - Means Amount Of Oxygen After Three Way Catalyst Is Relatively Large, When Engine Is Stopped, A Certain Value Is Indicated |
| VHCL SPEED SE [km/h] or [mph] | Vehicle Speed Computed From Vehicle Speed Sensor Signal Sent From Instrument Cluster Is Displayed |
| BATTERY VOLT [V] | Power Supply Voltage Of ECM Is Displayed |
| ACCEL SEN 1 Or 2 [V] | Accelerator Pedal Position Sensor Signal Voltage Is Displayed |
| THRTL SEN 1 Or 2 [V] | Throttle Position Sensor Signal Voltage Is Displayed |
| FUEL T/TMP SE [°C] or [°F] | Fuel Temperature Judged From Fuel Tank Temperature Sensor Signal Voltage Is Displayed |
| INT/A TEMP SE [°C] or [°F] | Intake Air Temperature Determined By Signal Voltage Of Intake Air Temperature Sensor Is Indicated |
| EVAP SYS PRES [V] | Signal Voltage Of EVAP Control System Pressure Sensor Is Displayed |
| ABSOL PRES/SE [V] | Signal Voltage Of Absolute Pressure Sensor Is Displayed |
| FUEL LEVEL SE [V] | Signal Voltage Of Fuel Level Sensor Is Displayed |
| START SIGNAL [ON/OFF] | Indicates [ON/OFF] Condition From Starter Signal, After Starting Engine, [OFF] Is Displayed Regardless Of Starter Signal |
| CLSD THL POS [ON/OFF] | Indicates Idle Position [ON/OFF] Computed By ECM According To Throttle Position Sensor Signal |
| AIR COND SIG [ON/OFF] | Indicates [ON/OFF] Condition Of Air Conditioner Switch As Determined By Air Conditioner Signal |
| P/N POSI SW [ON/OFF] | Indicates [ON/OFF] Condition From Park/Neutral Position (PNP) Switch Signal |
| PW/ST SIGNAL [ON/OFF] | [ON/OFF] Condition Of Power Steering Oil Pressure Switch Determined By Power Steering Oil Pressure Signal Is Indicated |
| LOAD SIGNAL [ON/OFF] | Indicates [ON/OFF] Condition From Electrical Load Signal &/Or Lighting Switch, ON - Rear Defogger Is Operating &/Or Lighting Switch Is On, OFF - Rear Defogger Is Not Operating & Lighting Switch Is Not On |
| IGNITION SW [ON/OFF] | Indicates [ON/OFF] Condition From Ignition Switch |
| BRAKE SW [ON/OFF] | Indicates [ON/OFF] Condition From Stop Lamp Switch Signal |
| INJ PULSE-B1 Or B2 [msec] | Indicates Actual Fuel Injection Pulse Width Compensated By ECM According To Input Signals, When Engine Is Stopped, A Certain Computed Value Is Indicated |
| B/FUEL SCHDL [msec] | "Base Fuel Schedule" Indicates Fuel Injection Pulse Width Programmed Into ECM, Prior To Any Learned On Board Correction |
| IGN TIMING [BTDC] | Indicates Ignition Timing Computed By ECM According To Input Signals, When Engine Is Stopped, A Certain Value Is Indicated |
| PURG VOL C/V [%] | Indicates EVAP Canister Purge Volume Control Solenoid Valve Control Value Computed By ECM According To Input Signals, Opening Becomes Larger As Value Increases |
| A/F ALPHA-B1 Or B2 [%] | Mean Value Of Air-Fuel Ratio Feedback Correction Factor Per Cycle Is Indicated, When Engine Is Stopped, A Certain Value Is Indicated, This Data Also Includes Data For Air-Fuel Ratio Learning Control |
| AIR COND RLY [ON/OFF] | Air Conditioner Relay Control Condition (Determined By ECM According To Input Signal) Is Indicated |
| FUEL PUMP RLY [ON/OFF] | Indicates Fuel Pump Relay Control Condition Determined By ECM According To Input Signals |
| VENT CONT/V [ON/OFF] | Control Condition Of EVAP Canister Vent Control Valve (Determined By ECM According To Input Signal) Is Indicated, ON - Closed; OFF - Open |
| H02S1 HTR (B1) Or (B2) [ON/OFF] | Indicates [ON/OFF] Condition Of Heated Oxygen Sensor 1 Heater (Front) Determined By ECM According To Input Signals |
| H02S2 HTR (B1) Or (B2) [ON/OFF] | Indicates [ON/OFF] Condition Of Heated Oxygen Sensor 2 Heater (Rear) Determined By ECM According To Input Signals |
| VC/V BYPASS/V [ON/OFF] | Control Condition Of Vacuum Cut Valve Bypass Valve (Determined By ECM According To Input Signal) Is Indicated, ON - Open; OFF - Closed |
| CAL/LD VALUE [%] | "Calculated Load Value" Indicates Value Of Current Airflow Divided By Peak Airflow |
| MASS AIRFLOW [g m/s] | Indicates Mass Airflow Computed By ECM According To Signal Voltage Of Mass Airflow Sensor |
| INT/V TIM (B1) Or (B2) [°CA] | Indicates [°CA] Of Intake Camshaft Advanced Angle |
| INT/V SOL (B1) Or (B2) [%] | Control Condition Of Intake Valve Timing Control Solenoid Valve (Determined By ECM According To Input Signals) Is Indicated, ON - Intake Valve Timing Control Is Operating. OFF - Intake Valve Timing Control Is Not Operating |
| TRVL AFTER MIL [km] or [Mile] | Distance Traveled While MIL Is Activated |
| VIAS S/V [ON/OFF] | Control Condition Of VIAS Control Solenoid Valve (Determined By ECM According To Input Signals) Is Indicated, ON - VIAS Control Solenoid Valve Is Operating, OFF - VIAS Control Solenoid Valve Is Not Operating |
| IDL A/V LEAN | Display Condition Of Idle Air Volume Learning, YET - Idle Air Volume Learning Has Not Been Performed Yet, CMPLT - Idle Air Volume Learning Has Already Been Performed Successfully, INCMP - Idle Air Volume Learning Has Not Been Performed Successfully |
| ENGINE MOUNT [IDLE/TRVL] | Control Condition Of Electronic Controlled Engine Mount (Computed By ECM According To Input Signals) Is Indicated, IDLE - Idle Condition; TRVL - Driving Condition |
| COOLING FAN [HI/LOW/OFF] | Indicates Control Condition Of Cooling Fan (Determined By ECM According To Input Signal), HI - High Speed Operation; LOW - Low Speed Operation; OFF - Stop |
| THRTL RELAY [ON/OFF] | Indicates Throttle Control Motor Relay Control Condition Determined By ECM According To Input Signals |
| AC PRESS SEN [V] | Signal Voltage From Refrigerant Pressure Sensor Is Displayed |
| BRAKE SW 1 [ON/OFF] | Indicates [ON/OFF] Condition From ASCD Brake Switch Signal, & ASCD Clutch Switch Signal (M/T Models) Or Park/Neutral Position Relay Signal (A/T Models) |
| BRAKE SW 2 [ON/OFF] | Indicates [ON/OFF] Condition Of Stop Lamp Switch Signal |
| MAIN SW [ON/OFF] | Indicates [ON/OFF] Condition From CRUISE Switch Signal |
| CANCEL SW [ON/OFF] | Indicates [ON/OFF] Condition From CANCEL Switch Signal |
| RESUME/ACC SW [ON/OFF] | Indicates [ON/OFF] Condition From ACCEL/RES Switch Signal |
| SET SW [ON/OFF] | Indicates [ON/OFF] Condition From COAST/SET Switch Signal |
| SET VHCL SPD [km/h] or [mph] | Preset Vehicle Speed Is Displayed |
| VHCL SPD CUT [NON/CUT] | Indicates Vehicle Cruise Condition, NON - Vehicle Speed Is Maintained At ASCD Set Speed; CUT - Vehicle Speed Decreased To Excessively Low Compared With ASCD Set Speed, & ASCD Operation Is Cut Off |
| LO SPEED CUT [NON/CUT] | Indicates Vehicle Cruise Condition, NON - Vehicle Speed Is Maintained At ASCD Set Speed; CUT - Vehicle Speed Decreased To Excessively Low Compared With ASCD Set Speed, & ASCD Operation Is Cut Off |
| AT OD MONITOR [ON/OFF] | Indicates [ON/OFF] Condition Of A/T OD According To Input Signal From TCM |
| AT OD CANCEL [ON/OFF] | Indicates [ON/OFF] Condition Of A/T OD Cancel Signal Sent From TCM |
| CRUISE LAMP [ON/OFF] | Indicates [ON/OFF] Condition Of CRUISE Lamp Determined By ECM According To Input Signals |
| SET LAMP [ON/OFF] | Indicates [ON/OFF] Condition Of SET Lamp Determined By ECM According To Input Signals |
| CAN COMM [OK/NG]; CAN CIRC 1, 2 Or 3 [OK/UNKWN] | Indicates Communication Condition Of CAN Communication Line |