1. INSPECT SPEEDOMETER
Reference: mph (U.S.A.)
Reference: km/h (Canada)
NOTICE: Tire wear as well as over or under inflation will cause errors.
Reference: Less than 0.5 km/h (0.3 mph)
2. INSPECT TACHOMETER
Reference: DC 13.5 V, at 25C (77F)
3. INSPECT FUEL RECEIVER GAUGE
OK: Needle position is on (EMPTY).
OK: Needle position is on (FULL).
4. INSPECT FUEL LEVEL WARNING LIGHT
OK: Fuel level warning light comes on.
5. INSPECT OIL PRESSURE WARNING LIGHT
OK: OIL PRESSURE warning light comes on.
6. INSPECT OIL CHANGE REMINDER LIGHT RESETTING PROCEDURE
CONDITION:
HINT: If the ignition switch is turned off during the reset procedure; LCD: off If the reset switch is not pressed for at least 5 seconds during the reset procedure; LCD: Return to odometer
TYPICAL ENABLING CONDITIONS
The monitor will run whenever these DTCs are not present | P0011, P0012 (VVT System 1-Advance, Retard), P0021, P0022 (VVT System 2- Adavance, Retard), P0031, P0032, P0051, P0052 (A/F Sensor Heater Sensor 1), P0037, P0038, P0057, P0058 (O2 Sensor heater Sensor 2), P0100, P0101, P0102, P0103 (MAF Sensor), P0115, P0116, P0117, P0118 (ECT Sensor), P0120, P0121, P0122, P0123, P0220, P0222, P0223 , P2135 (TP Sensor), P0125 (Insufficient ECT for Closed Loop), P0136, P0156 (O2 Sensor 2), P0171,P0172 (Fuel System), P0300, P0301, P0302, P0303, P0304, P0305, P0306 (Misfire), P0335 (CKP Sensor), P0340 (CMP Sensor), P0351, P0352, P0353, P0354, P0355, P0356 (Ignitor), P0500 (VSS), P2196, P2198 (A/F Sensor (Rationality)), P2A00, P2A03 (A/ F Sensor (Slow Response)) |
Battery voltage | 11 V or more |
IAT | -10C (14F) or more |
ECT | 75C (167F) or more |
Atmospheric pressure | 0.75 or more |
Idle | OFF |
Engine RPM | Less than 3200 rpm |
A/F sensor | Activated |
Fuel system status | Closed loop |
Engine load | 10 to 70% |
All of the following conditions are met | Conditions 1, 2 and 3 |
1. Mass air flow rate | 5 to 60 g/sec |
2. Front catalyst temperature (estimated) | 600 to 750C (1112 to 1382F) |
3. Rear catalyst temperature (estimated) | 100 to 900C (212 to 1652F) |
Rear HO2S monitor | Completed |
Shift position | 4th or more |
TYPICAL MALFUNCTION THRESHOLDS
Oxygen Storage Capacity (OSC) of catalyst | Less than 0.046 g (0.000101 lb) |
MONITOR RESULT
Refer to CHECKING MONITOR STATUS.
CONDITIONING FOR SENSOR TESTING
HINT: Perform the operation with the engine speeds and durations described below prior to checking the waveforms of the A/F and HO2 sensors. This is in order to activate the sensors sufficiently to obtain the appropriate inspection results.
HINT:
1. A/F CONTROL
HINT: Intelligent tester only: Malfunctioning areas can be identified by performing the A/F CONTROL function provided in the ACTIVE TEST. The A/F CONTROL function can help to determine whether the Air-Fuel Ratio (A/F) sensor, Heated Oxygen (HO2) sensor and other potential trouble areas are malfunctioning.
The following instructions describe how to conduct the A/F CONTROL operation using an intelligent tester.
HINT:
Standard voltage
CAUTION: The Air-Fuel Ratio (A/F) sensor has an output delay of a few seconds and the Heated Oxygen (HO2) sensor has a maximum output delay of approximately 20 seconds.
INSPECTION PROCEDURE
HINT: Read freeze frame data using the intelligent tester. The ECM records vehicle and driving condition information as freeze frame data the moment a DTC is stored. When troubleshooting, freeze frame data can be helpful in determining whether the vehicle was running or stopped, whether the engine was warmed up or not, whether the air-fuel ratio was lean or rich, as well as other data recorded at the time of a malfunction.
1 CHECK ANY OTHER DTCS OUTPUT (IN ADDITION TO DTC P0420 AND/OR P0430)
Result
HINT: If any DTCs other than P0420 or P0430 are output, troubleshoot those DTCs first.
2 PERFORM ACTIVE TEST BY INTELLIGENT TESTER (A/F CONTROL)
HINT:
Standard voltage
Result
Lean: During A/F CONTROL, the A/F sensor output voltage (AFS) is consistently more than 3.35 V, and the HO2 sensor output voltage (O2S) is consistently less than 0.4 V.
Rich: During A/F CONTROL, the AFS is consistently less than 3.0 V, and the O2S is consistently more than 0.55 V.
Lean/Rich: During A/F CONTROL of the ACTIVE TEST, the output voltage of the HO2 sensor alternates correctly.
3 INSPECT FOR EXHAUST GAS LEAK
OK: No gas leakage
REPLACE THREE-WAY CATALYTIC CONVERTER (EXHAUST MANIFOLD LH OR RH)
Fail-safe chart
If any of the following DTCs are set, the ECM enters fail-safe
mode to allow the vehicle to be driven temporarily.
HINT:
*1: The vehicle can be driven slowly when the accelerator
pedal is depressed firmly and slowly. If the accelerator
pedal is depressed quickly, the vehicle may ...
For driver side
ON-VEHICLE INSPECTION
1. INSPECT AIR MIX CONTROL SERVO MOTOR
(a) Remove the air mix control servo motor.
(b) Connect the positive (+) lead from the battery to
terminal 4 and negative (-) lead to terminal 5, then
check that the lever turns to "COOL" side smoothly.
(c) Connect ...
Meter Illumination is Always Dark
DESCRIPTION
Confirm that the vehicle is equipped with the optitron meter, then
check this circuit.
The combination meter assembly receives a auto dimmer signal from the
body ECU by the multiplex
communication line.
WIRING DIAGRAM
INSPECTION PROCEDURE
1 CHECK MULTIPLEX CO ...