Advanced Diagnostics: Other Honda Ridgeline I

Enable Conditions

ENABLE CONDITIONS

Malfunction Threshold

The MAP sensor output voltage is 0.23 V or less for at least 2 seconds.

Conditions for illuminating the MIL

When a malfunction is detected, the MIL comes on and the DTC and the freeze frame data are stored in the PCM memory.

Conditions for clearing the MIL

The MIL will be cleared if the malfunction does not recur during three consecutive trips in which the diagnostic runs.

The MIL, the DTC, and the freeze frame data can be cleared by using the scan tool Clear command or by disconnecting the battery.

Manifold Absolute Pressure (MAP) Sensor Circuit Diagram. Scheme 116

Manifold Absolute Pressure (MAP) Sensor Output Voltage - Graph. Scheme 117

ENABLE CONDITIONS

The MAP sensor output voltage is 4.49 V or more for at least 2 seconds.

When a malfunction is detected, the MIL comes on and the DTC and the freeze frame data are stored in the PCM memory.

The MIL will be cleared if the malfunction does not recur during three consecutive trips in which the diagnostic runs.

The MIL, the DTC, and the freeze frame data can be cleared by using the scan tool Clear command or by disconnecting the battery.

Intake Air Temperature (IAT) Sensor Circuit Range/Performance Problem - Graph. Scheme 118

ENABLE CONDITIONS

A malfunction is detected if these three conditions are not present after the engine and the ignition switch have been off for at least 6 hours

1. The temperature difference (IAT minus ECT1) is 84 °F (28 °C) or more.
2. The temperature difference (IAT minus ECT2) is 54 °F (12 °C) or more.
3. The temperature difference (ECT2 minus ECT1) is 95 °F (35 °C) or more.

Driving Pattern

1. Turn the ignition off, and wait at least 6 hours.
2. Start the engine, and let it idle for at least 10 seconds.

When a malfunction is detected during the first drive cycle, a Temporary DTC is stored in the PCM memory. If the malfunction recurs during the next (second) drive cycle, the MIL comes on and the DTC and the freeze frame data are stored.

The MIL will be cleared if the malfunction does not recur during three consecutive trips in which the diagnostic runs.

The MIL, the DTC, the Temporary DTC, and the freeze frame data can be cleared by using the scan tool Clear command or by disconnecting the battery.

Intake Air Temperature (IAT) Sensor Circuit Diagram. Scheme 119

Intake Air Temperature (IAT) Sensor Output Voltage - Graph. Scheme 120

ENABLE CONDITIONS

The IAT sensor output voltage is 0.08 V or less for at least 2 seconds.

When a malfunction is detected, the MIL comes on and the DTC and the freeze frame data are stored in the PCM memory.

The MIL will be cleared if the malfunction does not recur during three consecutive trips in which the diagnostic runs.

The MIL, the DTC, and the freeze frame data can be cleared by using the scan tool Clear command or by disconnecting the battery.

Intake Air Temperature (IAT) Sensor Circuit Diagram. Scheme 121

Intake Air Temperature (IAT) Sensor Output Voltage - Graph. Scheme 122

ENABLE CONDITIONS

The IAT sensor output voltage is 4.92 V or more for at least 2 seconds.

When a malfunction is detected, the MIL comes on and the DTC and the freeze frame data are stored in the PCM memory.

The MIL will be cleared if the malfunction does not recur during three consecutive trips in which the diagnostic runs.

The MIL, the DTC, and the freeze frame data can be cleared by using the scan tool Clear command or by disconnecting the battery.

Engine Coolant Temperature (ECT) Sensor 1 Circuit Range/ Performance Problem - Graph. Scheme 123

ENABLE CONDITIONS

Malfunction determination 1

With a completely cooled engine (one that has been off for at least 6 hours)

When the change in coolant temperature after 10 minutes or more of running time is 50 °F (10 °C) or less, a malfunction is detected.

Malfunction determination 2

With a partially cooled engine (one that has been off for less than 6 hours)

When the difference between the coolant temperature after 10 minutes or more of running time minus the coolant temperature after the engine has been off for 150 minutes and then run for 10 seconds is 50 °F (10 °C) or less, a malfunction is detected.

1. With a completely cooled engine (one that has been off for at least 6 hours).

1. Start the engine, and let it idle for at least 10 minutes.
2. Turn off the ignition for 10 seconds, then restart the engine and let it idle for at least 10 seconds. With a partially cooled engine (one that has been off for less than 6 hours).

1. Start the engine, and let it idle for at least 10 minutes.
2. Turn off the ignition for 2 1/2 hours (150 minutes), then restart the engine and let it idle for at least 10 seconds.

When a malfunction is detected during the first drive cycle, a Temporary DTC is stored in the PCM memory. If the malfunction recurs during the next (second) drive cycle, the MIL comes on and the DTC and the freeze frame data are stored.

The MIL will be cleared if the malfunction does not recur during three consecutive trips in which the diagnostic runs. The MIL, the DTC, the Temporary DTC, and the freeze frame data can be cleared by using the scan tool Clear command or by disconnecting the battery.

Engine Coolant Temperature (ECT) Sensor Circuit Diagram. Scheme 124

Engine Coolant Temperature (ECT) Sensor 1 Output Voltage - Graph. Scheme 125

ENABLE CONDITIONS

The output voltage from ECT sensor 1 is 0.08 V or less for at least 2 seconds.

When a malfunction is detected, the MIL comes on and the DTC and the freeze frame data are stored in the PCM memory.

The MIL will be cleared if the malfunction does not recur during three consecutive trips in which the diagnostic runs.

The MIL, the DTC, and the freeze frame data can be cleared by using the scan tool Clear command or by disconnecting the battery.

Engine Coolant Temperature (ECT) Sensor Circuit Diagram. Scheme 126

Engine Coolant Temperature (ECT) Sensor 1 Output Voltage - Graph. Scheme 127

ENABLE CONDITIONS

The output voltage from ECT sensor 1 is 4.92 V or more for at least 2 seconds.

When a malfunction is detected, the MIL comes on and the DTC and the freeze frame data are stored in the PCM memory.

The MIL will be cleared if the malfunction does not recur during three consecutive trips in which the diagnostic runs.

The MIL, the DTC, and the freeze frame data can be cleared by using the scan tool Clear command or by disconnecting the battery.

Throttle Position (TP) Sensor - Circuit Diagram. Scheme 128

ENABLE CONDITIONS

The TP sensor A output voltage is 0.3 V or less for at least 0.2 seconds.

When a malfunction is detected, the MIL comes on and the DTC and the freeze frame data are stored in the PCM memory.

The MIL will be cleared if the malfunction does not recur during three consecutive trips in which the diagnostic runs.

The MIL, the DTC, and the freeze frame data can be cleared by using the scan tool Clear command or by disconnecting the battery.

Throttle Position (TP) Sensor - Circuit Diagram. Scheme 129

ENABLE CONDITIONS

The TP sensor A output voltage is 4.8 V or more for at least 0.2 seconds.

When a malfunction is detected, the MIL comes on and the DTC and the freeze frame data are stored in the PCM memory.

The MIL will be cleared if the malfunction does not recur during three consecutive trips in which the diagnostic runs.

The MIL, the DTC, and the freeze frame data can be cleared by using the scan tool Clear command or by disconnecting the battery.

Engine Coolant Temperature (ECT) Sensor 1 Malfunction/Slow Response - Graph. Scheme 130

ENABLE CONDITIONS

The engine running time before the engine coolant temperature reaches 11 °F (-12 °C), based on the initial engine coolant temperatures, is as follows.

MALFUNCTION THRESHOLD

1. Start the engine at an initial engine coolant temperature as specified under Enable Conditions.
2. Let the engine idle for at least 20 minutes.

When a malfunction is detected during the first drive cycle with the ECT and IAT at engine start-up within the specified temperature range, a Temporary DTC is stored in the PCM memory. If the malfunction recurs during the next (second) drive cycle with the ECT and IAT at engine start-up within the specified temperature range, the MIL comes on and the DTC and the freeze frame data are stored.

The MIL will be cleared if the malfunction does not recur during three consecutive trips in which the diagnostic runs.

The MIL, the DTC, the Temporary DTC, and the freeze frame data can be cleared by using the scan tool Clear command or by disconnecting the battery.

Air/Fuel Ratio (A/F) Sensor (Sensor 1) Slow Response - Graph. Scheme 131

ENABLE CONDITIONS

The average of 28 periods or less of the rear A/F sensor (bank 1, sensor 1) inversion cycle is at least 6.8 seconds.

Vehicle Driving Pattern - Graph. Scheme 132

1. Start the engine. Hold the engine speed at 3,000 rpm without load (in Park or neutral) until the radiator fan comes on.
2. Drive the vehicle at a steady speed of 25 mph (40 km/h) or less, for at least 5 minutes.
3. Then, drive immediately at a steady speed between 26 - 81 mph (41 - 130 km/h) for at least 7 seconds. If the EVAP monitor runs instead of the HO2S monitor, turn the engine off, then restart it, and the HO2S monitor will restart. Drive the vehicle in this manner only if the traffic regulations and ambient conditions allow.

When a malfunction is detected during the first drive cycle, a Temporary DTC is stored in the PCM memory. If the malfunction recurs during the next (second) drive cycle, the MIL comes on and the DTC and the freeze frame data are stored.

The MIL will be cleared if the malfunction does not recur during three consecutive trips in which the diagnostic runs.

The MIL, the DTC, the Temporary DTC, and the freeze frame data can be cleared by using the scan tool Clear command or by disconnecting the battery.

Rear Air/Fuel Ratio (A/F) Sensor (Bank 1, Sensor 1) - Circuit Diagram. Scheme 133

ENABLE CONDITIONS

One of these conditions must be met for at least 2 seconds.

1. No return signal "High" is detected when the PCM output duty is less than 20 %.
2. Return signal does not change when the PCM output duty is more than 20 % and less than 80 %.
3. No return signal "Low" is detected when the PCM output duty is more than 80 %.

Start the engine. Hold the engine speed at 3,000 rpm without load (in Park or neutral) until the radiator fan comes on, then let it idle for at least 2 seconds.

When a malfunction is detected, the MIL comes on and the DTC and the freeze frame data are stored in the PCM memory.

The MIL will be cleared if the malfunction does not recur during three consecutive trips in which the diagnostic runs.

The MIL, the DTC, and the freeze frame data can be cleared by using the scan tool Clear command or by disconnecting the battery.

Rear Secondary Heated Oxygen Sensor (Bank 1, Sensor 2) - Circuit Diagram. Scheme 134

ENABLE CONDITIONS

The rear secondary HO2S heater output current is 0.38 A or less, or 3.33 A or more, for at least 5 seconds when the heater is on.

Start the engine. Hold the engine speed at 3,000 rpm without load (in Park or neutral) until the radiator fan comes on, then let it idle.

When a malfunction is detected, the MIL comes on and the DTC and the freeze frame data are stored in the PCM memory.

The MIL will be cleared if the malfunction does not recur during three consecutive trips in which the diagnostic runs.

The MIL, the DTC, and the freeze frame data can be cleared by using the scan tool Clear command or by disconnecting the battery.

Air/Fuel Ratio (A/F) Sensor (Sensor 1) Slow Response - Graph. Scheme 135

ENABLE CONDITIONS

The average of 28 periods or less of the front A/F sensor (bank 2, sensor 1) inversion cycle is at least 6.8 seconds.

Vehicle Driving Pattern - Graph. Scheme 136

1. Start the engine. Hold the engine speed at 3,000 rpm without load (in Park or neutral) until the radiator fan comes on.
2. Drive the vehicle at a steady speed of 25 mph (40 km/h) or less, for at least 5 minutes.
3. Then, drive immediately at a steady speed between 26 - 81 mph (41 - 130 km/h) for at least 7 seconds. If the EVAP monitor runs instead of the HO2S monitor, turn the engine off, then restart it, and the HO2S monitor will restart. Drive the vehicle in this manner only if the traffic regulations and ambient conditions allow.

When a malfunction is detected during the first drive cycle, a Temporary DTC is stored in the PCM memory. If the malfunction recurs during the next (second) drive cycle, the MIL comes on and the DTC and the freeze frame data are stored.

The MIL will be cleared if the malfunction does not recur during three consecutive trips in which the diagnostic runs.

The MIL, the DTC, the Temporary DTC, and the freeze frame data can be cleared by using the scan tool Clear command or by disconnecting the battery.

Front Air/Fuel Ratio (A/F) Sensor (Bank 2, Sensor 1) - Circuit Diagram. Scheme 137

ENABLE CONDITIONS

One of these conditions must be met for at least 2 seconds.

1. No return signal "High" is detected when the PCM output duty is less than 20 %.
2. Return signal does not change when the PCM output duty is more than 20 % and less than 80 %.
3. No return signal "Low" is detected when the PCM output duty is more than 80 %.

Start the engine. Hold the engine speed at 3,000 rpm without load (in Park or neutral) until the radiator fan comes on, then let it idle.

When a malfunction is detected, the MIL comes on and the DTC and the freeze frame data are stored in the PCM memory.

The MIL will be cleared if the malfunction does not recur during three consecutive trips in which the diagnostic runs.

The MIL, the DTC, and the freeze frame data can be cleared by using the scan tool Clear command or by disconnecting the battery.

Front Secondary Heated Oxygen Sensor (Secondary HO2S (Bank 2, Sensor 2)) Heater - Circuit Diagram. Scheme 138

ENABLE CONDITIONS

The front secondary HO2S heater output current is 0.38 A or less, or 3.33 A or more, for at least 5 seconds when the heater is on.

Start the engine. Hold the engine speed at 3,000 rpm without load (in Park or neutral) until the radiator fan comes on, then let it idle.

When a malfunction is detected, the MIL comes on and the DTC and the freeze frame data are stored in the PCM memory.

The MIL will be cleared if the malfunction does not recur during three consecutive trips in which the diagnostic runs.

The MIL, the DTC, and the freeze frame data can be cleared by using the scan tool Clear command or by disconnecting the battery.

Throttle Position (TP) Sensor - Circuit Diagram. Scheme 139

ENABLE CONDITIONS

The TP sensor B output voltage is 0.3 V or less for at least 0.2 seconds.

When a malfunction is detected, the MIL comes on and the DTC and the freeze frame data are stored in the PCM memory.

The MIL will be cleared if the malfunction does not recur during three consecutive trips in which the diagnostic runs.

The MIL, the DTC, and the freeze frame data can be cleared by using the scan tool Clear command or by disconnecting the battery.

Throttle Position (TP) Sensor - Circuit Diagram. Scheme 140

ENABLE CONDITIONS

The TP sensor B output voltage is 4.8 V or more for at least 0.2 seconds.

When a malfunction is detected, the MIL comes on and the DTC and the freeze frame data are stored in the PCM memory.

The MIL will be cleared if the malfunction does not recur during three consecutive trips in which the diagnostic runs.

The MIL, the DTC, and the freeze frame data can be cleared by using the scan tool Clear command or by disconnecting the battery.

Crankshaft Position Sensor Pulse Data - Graph. Scheme 141

ENABLE CONDITIONS

The number of misfires versus engine revolutions is equal to or greater than the values in the table.

MALFUNCTION THRESHOLD

Driving Pattern - Graph. Scheme 142

1. Start the engine. Hold the engine speed at 3,000 rpm without load (in Park or neutral) until the radiator fan comes on.
2. Drive the vehicle at a speed between 15 - 75 mph (24 - 120 km/h) for at least 3 minutes.
3. Stop the vehicle, and let the engine idle for at least 3 minutes. When freeze frame data is stored, drive the vehicle under those conditions instead of Driving Patterns 2 or 3. When you have difficulty duplicating the DTC because of road conditions and traffic situations, repeat the driving pattern several times. Drive the vehicle in this manner only if the traffic regulations and ambient conditions allow.

Misfire Type 1: Under high rpm or high load conditions: The MIL blinks once per second if a type 1 misfire (catalyst damaging) occurs, and a Temporary DTC is stored. If the type 1 misfire ceases, the MIL goes off. If a type 1 misfire occurs during the next (second) drive cycle, the MIL blinks at the first misfire occurrence, and the DTC and the freeze frame data are stored. The MIL remains on steady if the type 1 misfire ceases. Under normal driving conditions: The MIL blinks once per second if a type 1 misfire occurs a third time, and a Temporary DTC is stored. If a type 1 misfire occurs during the next (second) drive cycle, the MIL blinks during the third type 1 misfire occurrence, and the DTC and the freeze frame data are stored. If the type 1 misfire ceases, the MIL remains on steady.

Misfire Type 2: When a type 2 misfire (emission-related but not severe enough to immediately damage the TWC) occurs within the first 1,000 crankshaft revolutions after engine start-up, a Temporary DTC is stored. If a type 2 misfire occurs after the first 1,000 crankshaft revolutions after engine start-up, a Temporary DTC is stored during the fourth type 2 misfire occurrence.

If a type 2 misfire occurs during the next (second) drive cycle, the MIL comes on, and the DTC and the freeze frame data are stored.

The MIL will be cleared if the malfunction does not recur during three consecutive drive cycles in which the engine conditions are similar to the first time the malfunction was detected.

The MIL, the DTC, the Temporary DTC, and the freeze frame data can be cleared by using the scan tool Clear command or by disconnecting the battery.

Crankshaft Position Sensor Pulse Data - Graph. Scheme 143

ENABLE CONDITIONS

The number of misfires versus engine revolutions is equal to or greater than the values in the table.

MALFUNCTION THRESHOLD

Driving Pattern - Graph. Scheme 144

1. Start the engine. Hold the engine speed at 3,000 rpm without load (in Park or neutral) until the radiator fan comes on.
2. Drive the vehicle at a speed between 15 - 75 mph (24 - 120 km/h) for at least 3 minutes.
3. Stop the vehicle, and let the engine idle for at least 3 minutes. When freeze frame data is stored, drive the vehicle under those conditions instead of Driving Patterns 2 or 3. When you have difficulty duplicating the DTC because of road conditions and traffic situations, repeat the driving pattern several times. Drive the vehicle in this manner only if the traffic regulations and ambient conditions allow.

Misfire Type 1: Under high rpm or high load conditions: The MIL blinks once per second if a type 1 misfire (catalyst damaging) occurs, and a Temporary DTC is stored. If the type 1 misfire ceases, the MIL goes off. If a type 1 misfire occurs during the next (second) drive cycle, the MIL blinks at the first misfire occurrence, and the DTC and the freeze frame data are stored. The MIL remains on steady if the type 1 misfire ceases.

Under normal driving conditions: The MIL blinks once per second if a type 1 misfire occurs a third time, and a Temporary DTC is stored. If a type 1 misfire occurs during the next (second) drive cycle, the MIL blinks during the third type 1 misfire occurrence, and the DTC and the freeze frame data are stored. If the type 1 misfire ceases, the MIL remains on steady.

Misfire Type 2: When a type 2 misfire (emission-related but not severe enough to immediately damage the TWC) occurs within the first 1,000 crankshaft revolutions after engine start-up, a Temporary DTC is stored. If a type 2 misfire occurs after the first 1,000 crankshaft revolutions after engine start-up, a Temporary DTC is stored during the fourth type 2 misfire occurrence.

If a type 2 misfire occurs during the next (second) drive cycle, the MIL comes on, and the DTC and the freeze frame data are stored.

The MIL will be cleared if the malfunction does not recur during three consecutive drive cycles in which the engine conditions are similar to the first time the malfunction was detected.

The MIL, the DTC, the Temporary DTC, and the freeze frame data can be cleared by using the scan tool Clear command or by disconnecting the battery.

Knock Sensor Circuit Diagram. Scheme 145

ENABLE CONDITIONS

No signals from the knock sensor are detected for at least 5 seconds.

1. Start the engine. Hold the engine speed at 3,000 rpm without load (in Park or neutral) until the radiator fan comes on.
2. Hold the engine speed at 3,000 - 4,000 rpm for at least 60 seconds.

When a malfunction is detected, the MIL comes on and the DTC and the freeze frame data are stored in the PCM memory.

The MIL will be cleared if the malfunction does not recur during three consecutive trips in which the diagnostic runs.

The MIL, the DTC, and the freeze frame data can be cleared by using the scan tool Clear command or by disconnecting the battery.

Crankshaft Position (CKP) Sensor Circuit Diagram. Scheme 146

ENABLE CONDITIONS

No signals from CKP sensor A are detected while signals from CKP sensor B are detected 127 times in succession.

When a malfunction is detected, the MIL comes on and the DTC and the freeze frame data are stored in the PCM memory.

The MIL will be cleared if the malfunction does not recur during three consecutive trips in which the diagnostic runs.

The MIL, the DTC, and the freeze frame data can be cleared by using the scan tool Clear command or by disconnecting the battery.

Crankshaft Position (CKP) Sensor Circuit Diagram. Scheme 147

ENABLE CONDITIONS

Other than 22 pulses are detected during intervals between reference pulses for each crankshaft revolution. This condition has been detected at least 30 times.

When a malfunction is detected, the MIL comes on and the DTC and the freeze frame data are stored in the PCM memory.

The MIL will be cleared if the malfunction does not recur during three consecutive trips in which the diagnostic runs.

The MIL, the DTC, and the freeze frame data can be cleared by using the scan tool Clear command or by disconnecting the battery.

Camshaft Position (CMP) Sensor No Signal Circuit Diagram. Scheme 148

ENABLE CONDITIONS

No signals from CMP sensor are detected while signals from the CKP sensor are detected 352 times in succession.

When a malfunction is detected, the MIL comes on and the DTC and the freeze frame data are stored in the PCM memory.

The MIL will be cleared if the malfunction does not recur during three consecutive trips in which the diagnostic runs.

The MIL, the DTC, and the freeze frame data can be cleared by using the scan tool Clear command or by disconnecting the battery.

Camshaft Position (CMP) Sensor No Signal Circuit Diagram. Scheme 149

ENABLE CONDITIONS

More or less than two CMP sensor pulses are detected during intervals between the CKP standard pulses. This condition occurs at least 30 times.

When a malfunction is detected, the MIL comes on and the DTC and the freeze frame data are stored in the PCM memory.

The MIL will be cleared if the malfunction does not recur during three consecutive trips in which the diagnostic runs.

The MIL, the DTC, and the freeze frame data can be cleared by using the scan tool Clear command or by disconnecting the battery.

Crankshaft Position (CKP) Sensor Circuit Diagram. Scheme 150

ENABLE CONDITIONS

No signals from CKP sensor B are detected while signals from CKP sensor A are detected 352 times in succession.

When a malfunction is detected, the MIL comes on and the DTC and the freeze frame data are stored in the PCM memory.

The MIL will be cleared if the malfunction does not recur during three consecutive trips in which the diagnostic runs.

The MIL, the DTC, and the freeze frame data can be cleared by using the scan tool Clear command or by disconnecting the battery.

Crankshaft Position (CKP) Sensor Circuit Diagram. Scheme 151

ENABLE CONDITIONS

Other than 22 pulses are detected during intervals between reference pulses for each crankshaft revolution. This condition has been detected at least 30 times.

When a malfunction is detected, the MIL comes on and the DTC and the freeze frame data are stored in the PCM memory.

The MIL will be cleared if the malfunction does not recur during three consecutive trips in which the diagnostic runs.

The MIL, the DTC, and the freeze frame data can be cleared by using the scan tool Clear command or by disconnecting the battery.

Exhaust Gas Recirculation (EGR) Insufficient Flow Diagram. Scheme 152

Exhaust Gas Recirculation Valve Operation Graph. Scheme 153

ENABLE CONDITIONS

The ratio of the current EGR flow to the normal EGR flow is 15 % or less.

Vehicle Driving Pattern. Scheme 154

1. Start the engine. Hold the engine speed at 3,000 rpm without load (in Park or neutral) until the radiator fan comes on.
2. Drive the vehicle at a speed between 15 - 75 mph (24 - 120 km/h) for at least 5 seconds.
3. Then, drive at a steady speed between 55 - 75 mph (88 - 120 km/h) for at least 10 seconds.
4. Decelerate with the throttle valve fully closed for at least 4 seconds. Drive the vehicle in this manner only if the traffic regulations and ambient conditions allow.

When a malfunction is detected during the first drive cycle, a Temporary DTC is stored in the PCM memory. If the malfunction recurs during the next (second) drive cycle, the MIL comes on and the DTC and the freeze frame data are stored.

The MIL will be cleared if the malfunction does not recur during three consecutive trips in which the diagnostic runs.

The MIL, the DTC, the Temporary DTC, and the freeze frame data can be cleared by using the scan tool Clear command or by disconnecting the battery.

Exhaust Gas Recirculation Valve Lift Graph. Scheme 155

ENABLE CONDITIONS

The difference between the command value of the amount of EGR valve lift in the PCM and the actual amount of valve lift is 1.020 mm (0.041 in.) or more for at least 5 seconds.

1. Start the engine. Hold the engine speed at 3,000 rpm without load (in Park or neutral) until the radiator fan comes on.
2. Drive the vehicle at a speed between 15 - 75 mph (24 - 120 km/h) for at least 5 seconds. Drive the vehicle in this manner only if the traffic regulations and ambient conditions allow.

When a malfunction is detected during the first drive cycle, a Temporary DTC is stored in the PCM memory. If the malfunction recurs during the next (second) drive cycle, the MIL comes on and the DTC and the freeze frame data are stored.

The MIL will be cleared if the malfunction does not recur during three consecutive trips in which the diagnostic runs.

The MIL, the DTC, the Temporary DTC, and the freeze frame data can be cleared by using the scan tool Clear command or by disconnecting the battery.

Exhaust Gas Recirculation (EGR) Control Circuit Diagram. Scheme 156

ENABLE CONDITIONS

The EGR valve position sensor output voltage is 4.883 V or more for at least 2 seconds.

When a malfunction is detected, the MIL comes on and the DTC and the freeze frame data are stored in the PCM memory.

The MIL will be cleared if the malfunction does not recur during three consecutive trips in which the diagnostic runs.

The MIL, the DTC, and the freeze frame data can be cleared by using the scan tool Clear command or by disconnecting the battery.

Catalyst System Efficiency Voltage And Time - Graph. Scheme 157

ENABLE CONDITIONS

The number of detections is 196,608 (CTAGLT67), or more.

Driving Pattern - Graph. Scheme 158

1. Start the engine. Hold the engine speed at 3,000 rpm without load (in Park or neutral) until the radiator fan comes on.
2. Drive the vehicle at a speed between 45 - 75 mph (73 - 120 km/h) for at least 5 minutes, to warm up the TWC.
3. Set a vehicle speed of 55 mph (88 km/h) on the cruise control, and drive for at least 1 minute. Drive the vehicle in this manner only if the traffic regulations and ambient conditions allow.

When a malfunction is detected during the first drive cycle, a Temporary DTC is stored in the PCM memory. If the malfunction recurs during the next (second) drive cycle, the MIL comes on and the DTC and the freeze frame data are stored.

The MIL will be cleared if the malfunction does not recur during three consecutive trips in which the diagnostic runs.

The MIL, the DTC, the Temporary DTC, and the freeze frame data can be cleared by using the scan tool Clear command or by disconnecting the battery.

Catalyst System Efficiency Voltage And Time - Graph. Scheme 159

ENABLE CONDITIONS

The number of detections is 184,320 (CTAGLT68), or more.

Driving Pattern - Graph. Scheme 160

1. Start the engine. Hold the engine speed at 3,000 rpm without load (in Park or neutral) until the radiator fan comes on.
2. Drive the vehicle at a speed between 45 - 75 mph (73 - 120 km/h) for at least 5 minutes, to warm up the TWC.
3. Set a vehicle speed of 55 mph (88 km/h) on the cruise control, and drive for at least 1 minute. Drive the vehicle in this manner only if the traffic regulations and ambient conditions allow.

When a malfunction is detected during the first drive cycle, a Temporary DTC is stored in the PCM memory. If the malfunction recurs during the next (second) drive cycle, the MIL comes on and the DTC and the freeze frame data are stored.

The MIL will be cleared if the malfunction does not recur during three consecutive trips in which the diagnostic runs.

The MIL, the DTC, the Temporary DTC, and the freeze frame data can be cleared by using the scan tool Clear command or by disconnecting the battery.

Evaporative Emission (EVAP) Canister Purge Valve Malfunction Circuit Diagram. Scheme 161

ENABLE CONDITIONS

The return signal does not change according to the EVAP canister purge valve output for at least 5 seconds.

When a malfunction is detected, the MIL comes on and the DTC and the freeze frame data are stored in the PCM memory.

The MIL will be cleared if the malfunction does not recur during three consecutive trips in which the diagnostic runs.

The MIL, the DTC, and the freeze frame data can be cleared by using the scan tool Clear command or by disconnecting the battery.

Fuel Tank Pressure (FTP) Sensor Circuit Diagram. Scheme 162

Fuel Tank Pressure (FTP) Sensor Output Voltage Graph. Scheme 163

Fuel Tank Pressure - Graph. Scheme 164

ENABLE CONDITIONS

The FTP sensor output fluctuates by 0.3 kPa (2 mmHg, 0.1 in.Hg) or more at least five times within 3 seconds.

Start the engine in a cold condition, and let it idle for at least 20 seconds.

When a malfunction is detected during the first drive cycle, a Temporary DTC is stored in the PCM memory. If the malfunction recurs during the next (second) drive cycle, the MIL comes on and the DTC and the freeze frame data are stored.

The MIL will be cleared if the malfunction does not recur during three consecutive trips in which the diagnostic runs.

The MIL, the DTC, the Temporary DTC, and the freeze frame data can be cleared by using the scan tool Clear command or by disconnecting the battery.

Fuel Tank Pressure (FTP) Sensor Circuit Diagram. Scheme 165

Fuel Tank Pressure (FTP) Sensor Output Voltage Graph. Scheme 166

Fuel Tank Pressure Failure Operation Graph. Scheme 167

ENABLE CONDITIONS

The output from the fuel tank pressure sensor is more than 8 kPa (55 mmHg, 2.2 in.Hg) for at least 3 seconds.

Start the engine in a cold condition, and let it idle for at least 3 seconds.

When a malfunction is detected, the MIL comes on and the DTC and the freeze frame data are stored in the PCM memory.

The MIL will be cleared if the malfunction does not recur during three consecutive trips in which the diagnostic runs.

The MIL, the DTC, and the freeze frame data can be cleared by using the scan tool Clear command or by disconnecting the battery.

Fuel Tank Pressure (FTP) Sensor Circuit Diagram. Scheme 168

Fuel Tank Pressure (FTP) Sensor Output Voltage Graph. Scheme 169

Fuel Tank Pressure Failure Operation Graph. Scheme 170

ENABLE CONDITIONS

The output from the fuel tank pressure sensor is less than -7 kPa (-55 mmHg, -2.1 in.Hg) for at least 3 seconds.

Start the engine in a cold condition, and let it idle for at least 3 seconds.

When a malfunction is detected, the MIL comes on and the DTC and the freeze frame data are stored in the PCM memory.

The MIL will be cleared if the malfunction does not recur during three consecutive trips in which the diagnostic runs.

The MIL, the DTC, and the freeze frame data can be cleared by using the scan tool Clear command or by disconnecting the battery.

Evaporative Emission (EVAP) System Leak Detected/Fuel Fill Cap Loose Or Missing - Graph. Scheme 171

ENABLE CONDITIONS

Fuel vapor density during leak-checking is 0.10 g (0.004 oz) or more for no more than 45 seconds.

Confirmation Procedure with the HDS

Do the EVAP FUNCTION TEST in the INSPECTION MENU with the HDS.

1. After the vehicle has been left for an appropriate amount of time as specified, with the engine coolant temperature and intake air temperature within the specified range, start the engine.
2. Warm up the engine at idle until the radiator fan comes on.
3. Drive the vehicle at a speed between 45 - 75 mph (72 - 120 km/h) for at least 20 minutes.
4. After stopping the engine, turn the ignition switch off, and leave the vehicle for 20 minutes or more (EONV executes).

1. Drive the vehicle in this manner only if the traffic regulations and ambient conditions allow.

When a malfunction is detected during the first drive cycle with the ECT and IAT at engine start-up within the specified temperature range, a Temporary DTC is stored in the PCM memory. If the malfunction recurs during the next (second) drive cycle with the ECT and IAT at engine start-up within the specified temperature range, the MIL comes on and the DTC and the freeze frame data are stored.

The MIL will be cleared if the malfunction does not recur during three consecutive trips in which the diagnostic runs.

The MIL, the DTC, the Temporary DTC, and the freeze frame data can be cleared by using the scan tool Clear command or by disconnecting the battery.

Fuel Level Sensor (Fuel Gauge Sending Unit) Circuit Range/ Performance Problem - Graph. Scheme 172

ENABLE CONDITIONS

The variation of the fuel level sensor output is 3.5 % or less.

Drive for the specified amount of miles without refueling. (Turning the ignition switch off is acceptable.)

1. Drive the vehicle in this manner only if the traffic regulations and ambient conditions allow.

Conditions for illuminating the indicator

When a malfunction is detected, the DTC and the freeze frame data are stored in the PCM memory. The MIL does not come on.

ENABLE CONDITIONS

The fuel level sensor voltage is 0.10 V or less for at least 5 seconds.

When a malfunction is detected, the DTC and the freeze frame data are stored in the PCM memory. The MIL does not come on.

ENABLE CONDITIONS

The fuel level sensor voltage is 4.92 V or more for at least 5 seconds.

When a malfunction is detected, the DTC and the freeze frame data are stored in the PCM memory. The MIL does not come on.

ENABLE CONDITIONS

The output from the fuel tank pressure sensor is -2 kPa (-15 mmHg, -0.6 in.Hg) or less for at least 3 seconds.

Do the EVAP FUNCTION TEST in the INSPECTION MENU with the HDS.

Start the engine at an engine coolant temperature and intake air temperature as specified under Enable Conditions, and let it idle until the radiator fan comes on.

When a malfunction is detected during the first drive cycle with the ECT and IAT at engine start-up within the specified temperature range, a Temporary DTC is stored in the PCM memory. If the malfunction recurs during the next (second) drive cycle with the ECT and IAT at engine start-up within the specified temperature range, the MIL comes on and the DTC and the freeze frame data are stored.

The MIL will be cleared if the malfunction does not recur during three consecutive trips in which the diagnostic runs.

The MIL, the DTC, the Temporary DTC, and the freeze frame data can be cleared by using the scan tool Clear command or by disconnecting the battery.

Evaporative Emission (EVAP) System Low Purge Flow - Graph. Scheme 173

ENABLE CONDITIONS

The output from the fuel tank pressure sensor is -0.1 kPa (-1 mmHg, -0.03 in.Hg) or more for up to 45 seconds.

Do the EVAP FUNCTION TEST in the INSPECTION MENU with the HDS.

1. After the vehicle has been left for an appropriate amount of time as specified, with the engine coolant temperature and intake air temperature within the specified range, start the engine.
2. Warm up the engine at idle until the radiator fan comes on.
3. Drive the vehicle at a speed between 45 - 75 mph (72 - 120 km/h) for at least 20 minutes.
4. After stopping the engine, turn the ignition switch off, and leave the vehicle for at least 20 minutes (EONV executes).

1. Drive the vehicle in this manner only if the traffic regulations and ambient conditions allow.

When a malfunction is detected during the first drive cycle with the ECT and IAT at engine start-up within the specified temperature range, a Temporary DTC is stored in the PCM memory. If the malfunction recurs during the next (second) drive cycle with the ECT and IAT at engine start-up within the specified temperature range, the MIL comes on and the DTC and the freeze frame data are stored.

The MIL will be cleared if the malfunction does not recur during three consecutive trips in which the diagnostic runs.

The MIL, the DTC, the Temporary DTC, and the freeze frame data can be cleared by using the scan tool Clear command or by disconnecting the battery.

Evaporative Emission (EVAP) Canister Vent Shut Valve Control - Circuit Diagram. Scheme 174

ENABLE CONDITIONS

The return signal is "OFF" for at least 5 seconds when the PCM outputs the "ON" signal to the EVAP canister vent shut valve.

Do the EVAP CVS ON in the INSPECTION MENU with the HDS.

When a malfunction is detected, the MIL comes on and the DTC and the freeze frame data are stored in the PCM memory.

The MIL will be cleared if the malfunction does not recur during three consecutive trips in which the diagnostic runs.

The MIL, the DTC, and the freeze frame data can be cleared by using the scan tool Clear command or by disconnecting the battery.

Evaporative Emission (EVAP) Canister Vent Shut Valve Control - Circuit Diagram. Scheme 175

ENABLE CONDITIONS

The return signal is "ON" for at least 5 seconds when the PCM outputs the "OFF" signal to the EVAP canister vent shut valve.

When a malfunction is detected, the MIL comes on and the DTC and the freeze frame data are stored in the PCM memory.

The MIL will be cleared if the malfunction does not recur during three consecutive trips in which the diagnostic runs.

The MIL, the DTC, and the freeze frame data can be cleared by using the scan tool Clear command or by disconnecting the battery.

Idle Control System Diagram. Scheme 176

Idle Control System RPM - Graph. Scheme 177

ENABLE CONDITIONS

The actual idle speed is at least 100 rpm less than the target idle speed for at least 20 seconds.

1. Start the engine. Hold the engine speed at 3,000 rpm without load (in Park or neutral) until the radiator fan comes on.
2. Let the engine idle for at least 20 seconds.

When a malfunction is detected during the first drive cycle, a Temporary DTC is stored in the PCM memory. If the malfunction recurs during the next (second) drive cycle, the MIL comes on and the DTC and the freeze frame data are stored.

The MIL will be cleared if the malfunction does not recur during three consecutive trips in which the diagnostic runs.

The MIL, the DTC, the Temporary DTC, and the freeze frame data can be cleared by using the scan tool Clear command or by disconnecting the battery.

Idle Control System Diagram. Scheme 178

Idle Control System RPM - Graph. Scheme 179

ENABLE CONDITIONS

The actual idle speed is at least 200 rpm greater than the target idle speed for at least 20 seconds.

1. Start the engine. Hold the engine speed at 3,000 rpm without load (in Park or neutral) until the radiator fan comes on.
2. Let the engine idle for at least 20 seconds.

When a malfunction is detected during the first drive cycle, a Temporary DTC is stored in the PCM memory. If the malfunction recurs during the next (second) drive cycle, the MIL comes on and the DTC and the freeze frame data are stored.

The MIL will be cleared if the malfunction does not recur during three consecutive trips in which the diagnostic runs.

The MIL, the DTC, the Temporary DTC, and the freeze frame data can be cleared by using the scan tool Clear command or by disconnecting the battery.

Charging System Diagram. Scheme 180

ENABLE CONDITIONS

The IGP terminal voltage is 11.0 V or less for at least 60 seconds.

When a malfunction is detected, the DTC and the freeze frame data are stored in the PCM memory. The MIL does not come on.

ENABLE CONDITIONS

The PCM operates for at least 5 seconds after the ignition switch is turned OFF.

When a malfunction is detected, the DTC and the freeze frame data are stored in the PCM memory. The MIL does not come on.

ENABLE CONDITIONS

The powertrain control program update is stopped before it is finished for at most 1 second.

When a malfunction is detected, the DTC and the freeze frame data are stored in the PCM memory. The MIL does not come on.

ENABLE CONDITIONS

A malfunction is detected whenever the keep alive data retrieval and writing process is not completed normally.

When a malfunction is detected, the MIL comes on and the DTC and the freeze frame data are stored in the PCM memory.

The MIL will be cleared if the malfunction does not recur during three consecutive trips in which the diagnostic runs.

The MIL, the DTC, and the freeze frame data can be cleared by using the scan tool Clear command or by disconnecting the battery.

Lost Communication With Electronic Throttle Control System (ETCS) - Communication Diagram. Scheme 181

ENABLE CONDITIONS

One of the following conditions continues for at least 0.25 seconds.

1. The serial communication signal from the sub CPU is not input.
2. The serial communication signal from the sub CPU is abnormal.

When a malfunction is detected, the MIL comes on and the DTC and the freeze frame data are stored in the PCM memory.

The MIL will be cleared if the malfunction does not recur during three consecutive trips in which the diagnostic runs.

The MIL, the DTC, and the freeze frame data can be cleared by using the scan tool Clear command or by disconnecting the battery.

Electronic Throttle Control System (ETCS) Malfunction - Communication Diagram. Scheme 182

ENABLE CONDITIONS

One of the following conditions are detected and continues for at least 0.2 second

1. The data read from the ROM is abnormal
2. The data read from the RAM is abnormal
3. The A/D converter reference voltage is other than the specified value

When a malfunction is detected, the MIL comes on and the DTC and the freeze frame data are stored in the PCM memory.

The MIL will be cleared if the malfunction does not recur during three consecutive trips in which the diagnostic runs.

The MIL, the DTC, and the freeze frame data can be cleared by using the scan tool Clear command or by disconnecting the battery.

VIN Not Programmed Or Mismatch Circuit Diagram. Scheme 183

ENABLE CONDITIONS

The VIN is not registered in the keep-alive memory in the PCM.

When a malfunction is detected, the MIL comes on and the DTC and the freeze frame data are stored in the PCM memory.

When the VIN registration is completed, the MIL is cleared.

Sensor Reference Voltage A Circuit Malfunction Diagram. Scheme 184

ENABLE CONDITIONS

The sensor reference voltage is 5.4 V or more, or 4.6 V or less, for at least 2 seconds.

When a malfunction is detected, the MIL comes on and the DTC and the freeze frame data are stored in the PCM memory.

The MIL will be cleared if the malfunction does not recur during three consecutive trips in which the diagnostic runs.

The MIL, the DTC, and the freeze frame data can be cleared by using the scan tool Clear command or by disconnecting the battery.

Powertrain Control Module - Circuit Diagram. Scheme 185

ENABLE CONDITIONS

The PCM is shut down without the normal shut down procedure.

When a malfunction is detected during the first drive cycle, a Temporary DTC is stored in the PCM memory. If the malfunction recurs during the next (second) drive cycle, the MIL comes on and the DTC and the freeze frame data are stored.

The MIL will be cleared if the malfunction does not recur during three consecutive drive cycles in which the engine conditions are similar to the first time the malfunction was detected.

The MIL, the DTC, the Temporary DTC, and the freeze frame data can be cleared by using the scan tool Clear command or by disconnecting the battery.

Transmission Range Switch - Circuit Diagram. Scheme 186

TRANSMISSION RANGE SWITCH CONTACT POINT INPUT MATRIX

ENABLE CONDITIONS

Case 1

The PCM detects the selected range switch input and another range switch (except FWD switch) input simultaneously for at least 1 second.

Case 2

The PCM detects the P, R, N, or 1 range switch input and the FWD switch input simultaneously for at least 1 second.

Start the engine, and shift the transmission to all shift lever positions, pausing for at least 1 second in each position.

When a malfunction is detected, the MIL comes on and the DTC and the freeze frame data are stored in the PCM memory.

The MIL will be cleared if the malfunction does not recur during three consecutive trips in which the diagnostic runs.

The MIL, the DTC, and the freeze frame data can be cleared by using the scan tool Clear command or by disconnecting the battery.

Transmission Range Switch - Circuit Diagram. Scheme 187

TRANSMISSION RANGE SWITCH CONTACT POINT INPUT MATRIX

ENABLE CONDITIONS

No FWD position signal is detected when the vehicle speed changes from 6 mph (10 km/h) --> 30 mph (48 km/h) --> 6 mph (10 km/h) in the D position.

1. Start the engine, and accelerate to 30 mph (48 km/h) or more in D position, then slow down to 6 mph (10 km/h).
2. Stop the vehicle, turn the ignition switch OFF, and repeat step 1 .

1. Drive the vehicle in this manner only if the traffic regulations and ambient conditions allow.

When a malfunction is detected during the first drive cycle, a Temporary DTC is stored in the PCM memory. If the malfunction recurs during the next (second) drive cycle, the MIL comes on and the DTC and the freeze frame data are stored.

The MIL will be cleared if the malfunction does not recur during three consecutive trips in which the diagnostic runs.

The MIL, the DTC, the Temporary DTC, and the freeze frame data can be cleared by using the scan tool Clear command or by disconnecting the battery.

Short In ATF Temperature Sensor Circuit Diagram. Scheme 188

ATF Temperature Graph. Scheme 189

1. Stuck at Low temperature ENABLE CONDITIONS Condition Minimum Maximum Engine coolant temperature 158 °F (70 °C) - Initial engine coolant temperature - 95 °F (35 °C) Vehicle speed 19 mph (30 km/h) - Battery voltage 11.0 V - Throttle position 4.0 ° - No active DTCs P0116, P0117, P0118, P0712, P0713, P0721, P0722 Other After the engine coolant temperature reaches the fixed value, both the vehicle speed and the throttle position meet the conditions for at least 5 minutes
2. Stuck at High temperature ENABLE CONDITIONS Condition Minimum Maximum Engine coolant temperature 158 °F (70 °C) - Previous engine coolant temperature when the ignition switch was turned OFF 158 °F (70 °C) - Present engine coolant temperature when the ignition switch is turned ON - 95 °F (35 °C) Battery voltage 11.0 V - No active DTCs P0116, P0117, P0118, P0712, P0713, P0721, P0722

1. Stuck at Low temperature The ATF temperature rise is 9 °F (5 °C) or less after the ignition switch is turned ON, and the current ATF temperature is -4 °F (-20 °C) or less.
2. Stuck at High temperature The ATF temperature drop is -9 °F (-5 °C) or less after the ignition switch is turned ON, and the current ATF temperature is 230 °F (110 °C) or more for at least 20 seconds.

1. Stuck at Low temperature Start the engine with engine coolant temperature at 95 °F (35 °C) or less, and warm up the engine until the engine coolant temperature reaches 158 °F (70 °C) or more. Then drive the vehicle at a speed of 19 mph (30 km/h) or more with the throttle position at 4.0° or more for at least 5 minutes.
2. Stuck at High temperature Turn off the engine with the engine coolant temperature at 158 °F (70 °C) or more. Restart the engine after the engine coolant temperature drops to 95 °F (35 °C) or less, and warm up the engine until the engine coolant temperature reaches 158 °F (70 °C).

1. Drive the vehicle in this manner only if the traffic regulations and ambient conditions allow.

When a malfunction is detected, the D indicator blinks, and the DTC and the freeze frame data are stored in the PCM memory. The MIL does not come on.

ENABLE CONDITIONS

The ATF temperature sensor output voltage is 0.07 V or less for at least 10 seconds.

Start the engine, shift to P position, and wait for at least 10 seconds.

When a malfunction is detected, the D indicator blinks, and the DTC and the freeze frame data are stored in the PCM memory. The MIL does not come on.

ENABLE CONDITIONS

The ATF temperature sensor output voltage is 4.93 V or more for at least 10 seconds.

Start the engine, shift to P position, and wait for at least 10 seconds.

When a malfunction is detected, the D indicator blinks, and the DTC and the freeze frame data are stored in the PCM memory. The MIL does not come on.

ENABLE CONDITIONS

The vehicle speed measured by the input shaft (mainshaft) speed sensor/(divided by) the vehicle speed measured by the output shaft (countershaft) speed sensor < 0.156 for at least 10 seconds.

Start the engine, and drive the vehicle at a speed of 13 mph (20 km/h) or more for at least 10 seconds.

1. Drive the vehicle in this manner only if the traffic regulations and ambient conditions allow.

When a malfunction is detected, the MIL comes on and the DTC and the freeze frame data are stored in the PCM memory.

The MIL will be cleared if the malfunction does not recur during three consecutive trips in which the diagnostic runs.

The MIL, the DTC, and the freeze frame data can be cleared by using the scan tool Clear command or by disconnecting the battery.

Input Shaft (Mainshaft) Speed Sensor - Circuit Diagram. Scheme 190

Speed Sensor Graph. Scheme 191

ENABLE CONDITIONS

The vehicle speed measured by the output shaft (countershaft) speed sensor is 13 mph (20 km/h) or more, the vehicle speed measured by the input shaft (mainshaft) speed sensor is 1 mph (2 km/h) or less for at least 10 seconds.

Start the engine, and drive the vehicle at a speed of 13 mph (20 km/h) or more for at least 10 seconds.

1. Drive the vehicle in this manner only if the traffic regulations and ambient conditions allow.

When a malfunction is detected, the MIL comes on and the DTC and the freeze frame data are stored in the PCM memory.

The MIL will be cleared if the malfunction does not recur during three consecutive trips in which the diagnostic runs.

The MIL, the DTC, and the freeze frame data can be cleared by using the scan tool Clear command or by disconnecting the battery.

Input Shaft (Mainshaft) Speed Sensor - Circuit Diagram. Scheme 192

Input Shaft Speed Sensor Graph. Scheme 193

ENABLE CONDITIONS

The fluctuation of the vehicle speed measured by the input shaft (mainshaft) speed sensor in 10 milliseconds is 4 mph (6km/h) or more, and it fluctuates at least six times within 500 milliseconds.

Start the engine, and drive the vehicle at a speed of 13 mph (20 km/h) or more so it shifts from 1st to 5th in D position.

1. Drive the vehicle in this manner only if the traffic regulations and ambient conditions allow.

When a malfunction is detected during the first drive cycle, a Temporary DTC is stored in the PCM memory. If the malfunction recurs during the next (second) drive cycle, the MIL comes on and the DTC and the freeze frame data are stored.

The MIL will be cleared if the malfunction does not recur during three consecutive trips in which the diagnostic runs.

The MIL, the DTC, the Temporary DTC, and the freeze frame data can be cleared by using the scan tool Clear command or by disconnecting the battery.

Output Shaft Speed Sensor Circuit Diagram. Scheme 194

Vehicle Speed Sensor Failure Area Graph. Scheme 195

ENABLE CONDITIONS

The vehicle speed measured by the input shaft (mainshaft) speed sensor/(divided by) the vehicle speed measured by the output shaft (countershaft) speed sensor > 6.0 for at least 10 seconds.

Start the engine, and drive the vehicle at a speed of 13 mph (20 km/h) or more for at least 10 seconds.

1. Drive the vehicle in this manner only if the traffic regulations and ambient conditions allow.

When a malfunction is detected, the MIL comes on and the DTC and the freeze frame data are stored in the PCM memory.

The MIL will be cleared if the malfunction does not recur during three consecutive trips in which the diagnostic runs.

The MIL, the DTC, and the freeze frame data can be cleared by using the scan tool Clear command or by disconnecting the battery.

Output Shaft Speed Sensor Circuit Diagram. Scheme 196

Output Shaft Countershaft Speed Sensor Graph. Scheme 197

ENABLE CONDITIONS

The vehicle speed measured by the input shaft (mainshaft) speed sensor is 13 mph (20 km/h) or more, the vehicle speed measured by the output shaft (countershaft) speed sensor is 1 mph (2 km/h) or less for at least 10 seconds.

Start the engine, and drive the vehicle at a speed of 13 mph (20 km/h) or more for at least 10 seconds.

1. Drive the vehicle in this manner only if the traffic regulations and ambient conditions allow.

When a malfunction is detected, the MIL comes on and the DTC and the freeze frame data are stored in the PCM memory.

The MIL will be cleared if the malfunction does not recur during three consecutive trips in which the diagnostic runs.

The MIL, the DTC, and the freeze frame data can be cleared by using the scan tool Clear command or by disconnecting the battery.

Output Shaft Speed Sensor Circuit Diagram. Scheme 198

Output Shaft (Countershaft) Speed Sensor Graph. Scheme 199

ENABLE CONDITIONS

The fluctuation of the vehicle speed measured by the output shaft (countershaft) speed sensor in 10 milliseconds is 4 mph (6km/h) or more, and it fluctuates at least six times within 500 milliseconds.

Start the engine, and drive the vehicle at a speed of 13 mph (20 km/h) or more so it shifts from 1st to 5th in D position.

1. Drive the vehicle in this manner only if the traffic regulations and ambient conditions allow.

When a malfunction is detected during the first drive cycle, a Temporary DTC is stored in the PCM memory. If the malfunction recurs during the next (second) drive cycle, the MIL comes on and the DTC and the freeze frame data are stored.

The MIL will be cleared if the malfunction does not recur during three consecutive trips in which the diagnostic runs.

The MIL, the DTC, the Temporary DTC, and the freeze frame data can be cleared by using the scan tool Clear command or by disconnecting the battery.

Problem In 1st Clutch And 1st Clutch Hydraulic Circuit Flow Chart. Scheme 200

Gear Ratio To Shift Status Graph. Scheme 201

ENABLE CONDITIONS

The actual gear ratio must match one of these conditions for at least 12 seconds with the 1st gear command

1. Actual gear ratio > 1st gear ratio by a factor of 1.2
2. Actual gear ratio < 1st gear ratio by a factor of 0.75

Start the engine, shift to the D position, and drive the vehicle at a speed of 8 mph (12 km/h) or more for at least 12 seconds in 1st gear.

1. Drive the vehicle in this manner only if the traffic regulations and ambient conditions allow.

When a malfunction is detected, the D indicator blinks, and the DTC and the freeze frame data are stored in the PCM memory. The MIL does not come on.

ENABLE CONDITIONS

The actual gear ratio must match one of these conditions for at least 12 seconds with the 2nd gear command

1. Actual gear ratio > 2nd gear ratio by a factor of 1.2
2. Actual gear ratio < 2nd gear ratio by a factor of 0.75

Start the engine, shift to the D position, and drive the vehicle at a speed of 8 mph (12 km/h) or more for at least 12 seconds in 2nd gear.

1. Drive the vehicle in this manner only if the traffic regulations and ambient conditions allow.

When a malfunction is detected, the D indicator blinks, and the DTC and the freeze frame data are stored in the PCM memory. The MIL does not come on.

ENABLE CONDITIONS

The actual gear ratio must match one of these conditions for at least 12 seconds with the 3rd gear command

1. Actual gear ratio > 3rd gear ratio by a factor of 1.2
2. Actual gear ratio < 3rd gear ratio by a factor of 0.75

Start the engine, shift to the D position, and drive the vehicle at a speed of 8 mph (12 km/h) or more for at least 12 seconds in 3rd gear.

1. Drive the vehicle in this manner only if the traffic regulations and ambient conditions allow.

When a malfunction is detected, the D indicator blinks, and the DTC and the freeze frame data are stored in the PCM memory. The MIL does not come on.

ENABLE CONDITIONS

The actual gear ratio must match one of these conditions for at least 12 seconds with the 4th gear command

1. Actual gear ratio > 4th gear ratio by a factor of 1.2
2. Actual gear ratio < 4th gear ratio by a factor of 0.75

Start the engine, shift to the D position, and drive the vehicle at a speed of 8 mph (12 km/h) or more for at least 12 seconds in 4th gear.

1. Drive the vehicle in this manner only if the traffic regulations and ambient conditions allow.

When a malfunction is detected, the D indicator blinks, and the DTC and the freeze frame data are stored in the PCM memory. The MIL does not come on.

ENABLE CONDITIONS

The actual gear ratio must match one of these conditions for at least 12 seconds with the 5th gear command

1. Actual gear ratio > 5th gear ratio by a factor of 1.2
2. Actual gear ratio < 5th gear ratio by a factor of 0.75

Start the engine, shift to the D position, and drive the vehicle at a speed of 8 mph (12 km/h) or more for at least 12 seconds in 5th gear.

1. Drive the vehicle in this manner only if the traffic regulations and ambient conditions allow.

When a malfunction is detected, the D indicator blinks, and the DTC and the freeze frame data are stored in the PCM memory. The MIL does not come on.

ENABLE CONDITIONS

The ratio of the engine revolution to the transmission input pulse does not reach about 100 % for at least 22 seconds.

1. Start the engine. Hold the engine speed at 3,000 rpm without load (in Park or neutral) until the radiator fan comes on.
2. Drive the vehicle at a constant speed of 60 mph (97 km/h) for at least 22 seconds.

1. Drive the vehicle in this manner only if the traffic regulations and ambient conditions allow.

When a malfunction is detected during the first drive cycle, a Temporary DTC is stored in the PCM memory. If the malfunction recurs during the next (second) drive cycle, the MIL comes on and the DTC and the freeze frame data are stored.

The MIL will be cleared if the malfunction does not recur during three consecutive trips in which the diagnostic runs.

The MIL, the DTC, the Temporary DTC, and the freeze frame data can be cleared by using the scan tool Clear command or by disconnecting the battery.

A/T Clutch Pressure Control Solenoid Valve A Operation Diagram. Scheme 202

Gear Position To Shift Status Graph. Scheme 203

A/T CLUTCH PRESSURE CONTROL SOLENOID VALVE COMBINATION TABLE

ENABLE CONDITIONS

Case 1

The transmission is held in 1st gear against the 1st --> 2nd gear upshift command.

Case 2

The engine speed flares when upshifting to 2nd - 3rd, 3rd - 4th, and 4th - 5th.

Start the engine, and accelerate the vehicle until the transmission shifts into 5th gear in D position.

1. Drive the vehicle in this manner only if the traffic regulations and ambient conditions allow.

When a malfunction is detected during the first drive cycle, a Temporary DTC is stored in the PCM memory. If the malfunction recurs during the next (second) drive cycle, the MIL comes on and the DTC and the freeze frame data are stored.

The MIL will be cleared if the malfunction does not recur during three consecutive trips in which the diagnostic runs.

The MIL, the DTC, the Temporary DTC, and the freeze frame data can be cleared by using the scan tool Clear command or by disconnecting the battery.

A/T Clutch Pressure Control Solenoid Valve A Operation Diagram. Scheme 204

Gear Position To Shift Status Graph. Scheme 205

A/T CLUTCH PRESSURE CONTROL SOLENOID VALVE COMBINATION TABLE

ENABLE CONDITIONS

One of these conditions occurs.

1. The transmission is held in 2nd gear against the 2nd --> 3rd gear upshift command.
2. The transmission is held in 4th gear against the 4th --> 5th gear upshift command.

Start the engine, and accelerate the vehicle until the transmission shifts into 5th gear in D position.

1. Drive the vehicle in this manner only if the traffic regulations and ambient conditions allow.

When a malfunction is detected during the first drive cycle, a Temporary DTC is stored in the PCM memory. If the malfunction recurs during the next (second) drive cycle, the MIL comes on and the DTC and the freeze frame data are stored.

The MIL will be cleared if the malfunction does not recur during three consecutive trips in which the diagnostic runs.

The MIL, the DTC, the Temporary DTC, and the freeze frame data can be cleared by using the scan tool Clear command or by disconnecting the battery.

Shift Solenoid Valve A - System Diagram (Stuck OFF). Scheme 206

Gear Position To Shift Status Graph. Scheme 207

Shift Solenoid Valve Driving Signal Combination Chart. Scheme 208

ENABLE CONDITIONS

One of these conditions occurs.

1. The transmission is held in 3rd gear against the 1st --> 2nd gear upshift command for up to 20 seconds.
2. The transmission is held in 4th gear against the 4th --> 5th gear upshift command for up to 20 seconds without a record that the gear change time was short when the 3rd --> 4th gear upshift was commanded.

Start the engine, and accelerate the vehicle until the transmission shifts into 5th gear in D position.

1. Drive the vehicle in this manner only if the traffic regulations and ambient conditions allow.

When a malfunction is detected during the first drive cycle, a Temporary DTC is stored in the PCM memory. If the malfunction recurs during the next (second) drive cycle, the MIL comes on and the DTC and the freeze frame data are stored.

The MIL will be cleared if the malfunction does not recur during three consecutive trips in which the diagnostic runs.

The MIL, the DTC, the Temporary DTC, and the freeze frame data can be cleared by using the scan tool Clear command or by disconnecting the battery.

Shift Solenoid Valve A - System Diagram (Stuck OFF). Scheme 209

Gear Position To Shift Status Graph. Scheme 210

Shift Solenoid Valve Driving Signal Combination Chart. Scheme 211

ENABLE CONDITIONS

The transmission is held in 2nd gear against the 2nd --> 3rd gear upshift command for up to 20 seconds without a record that the transmission was held in 2nd gear against the 1st gear command.

Start the engine, and accelerate the vehicle until the transmission shifts into 5th gear in D position.

1. Drive the vehicle in this manner only if the traffic regulations and ambient conditions allow.

When a malfunction is detected during the first drive cycle, a Temporary DTC is stored in the PCM memory. If the malfunction recurs during the next (second) drive cycle, the MIL comes on and the DTC and the freeze frame data are stored.

The MIL will be cleared if the malfunction does not recur during three consecutive trips in which the diagnostic runs.

The MIL, the DTC, the Temporary DTC, and the freeze frame data can be cleared by using the scan tool Clear command or by disconnecting the battery.

Shift Solenoid Valve B - System Diagram (Stuck OFF). Scheme 212

Gear Position To Shift Status Graph. Scheme 213

Shift Solenoid Valve Driving Signal Combination Chart. Scheme 214

ENABLE CONDITIONS

Both of these conditions occur.

1. The transmission is held in 5th gear against the 1st gear hold command.
2. The transmission is held in 4th gear against the 2nd gear hold command.

Start the engine, and accelerate the vehicle until the transmission shifts into 5th gear in D position.

1. Drive the vehicle in this manner only if the traffic regulations and ambient conditions allow.

When a malfunction is detected during the first drive cycle, a Temporary DTC is stored in the PCM memory. If the malfunction recurs during the next (second) drive cycle, the MIL comes on and the DTC and the freeze frame data are stored.

The MIL will be cleared if the malfunction does not recur during three consecutive trips in which the diagnostic runs.

The MIL, the DTC, the Temporary DTC, and the freeze frame data can be cleared by using the scan tool Clear command or by disconnecting the battery.

Shift Solenoid Valve B - System Diagram (Stuck OFF). Scheme 215

Gear Position To Shift Status Graph. Scheme 216

Shift Solenoid Valve Driving Signal Combination Chart. Scheme 217

ENABLE CONDITIONS

The transmission is held in 3rd gear against the 3rd --> 4th gear upshift command for up to 20 seconds, without records that the gear change time was short when the 2nd --> 3rd gear upshift and the 4th --> 5th gear upshift were commanded.

Start the engine, and accelerate the vehicle until the transmission shifts into 5th gear in D position.

1. Drive the vehicle in this manner only if the traffic regulations and ambient conditions allow.

When a malfunction is detected during the first drive cycle, a Temporary DTC is stored in the PCM memory. If the malfunction recurs during the next (second) drive cycle, the MIL comes on and the DTC and the freeze frame data are stored.

The MIL will be cleared if the malfunction does not recur during three consecutive trips in which the diagnostic runs.

The MIL, the DTC, the Temporary DTC, and the freeze frame data can be cleared by using the scan tool Clear command or by disconnecting the battery.

Shift Solenoid Valve C - System Diagram (Stuck OFF). Scheme 218

Gear Position To Shift Status Graph. Scheme 219

Shift Solenoid Valve Driving Signal Combination Chart. Scheme 220

ENABLE CONDITIONS

At first, the transmission is held in 2nd gear against the 1st gear command, and then the 3rd --> 4th gear change time is short (less than 0.8 seconds) when the 3rd --> 4th gear upshift is commanded.

Start the engine, and accelerate the vehicle until the transmission shifts into 5th gear in D position.

1. Drive the vehicle in this manner only if the traffic regulations and ambient conditions allow.

When a malfunction is detected during the first drive cycle, a Temporary DTC is stored in the PCM memory. If the malfunction recurs during the next (second) drive cycle, the MIL comes on and the DTC and the freeze frame data are stored.

The MIL will be cleared if the malfunction does not recur during three consecutive trips in which the diagnostic runs.

The MIL, the DTC, the Temporary DTC, and the freeze frame data can be cleared by using the scan tool Clear command or by disconnecting the battery.

Shift Solenoid Valve C - System Diagram (Stuck OFF). Scheme 221

Gear Position To Shift Status Graph. Scheme 222

Shift Solenoid Valve Driving Signal Combination Chart. Scheme 223

ENABLE CONDITIONS

At first, the 2nd --> 3rd gear change time is short (less than 0.8 seconds) when the 2nd --> 3rd gear upshift is commanded, and next, the 4th --> 5th gear change time is short (less than 0.8 seconds) when the 4th --> 5th gear upshift is commanded.

Start the engine, and accelerate the vehicle until the transmission shifts into 5th gear in D position.

1. Drive the vehicle in this manner only if the traffic regulations and ambient conditions allow.

When a malfunction is detected during the first drive cycle, a Temporary DTC is stored in the PCM memory. If the malfunction recurs during the next (second) drive cycle, the MIL comes on and the DTC and the freeze frame data are stored.

The MIL will be cleared if the malfunction does not recur during three consecutive trips in which the diagnostic runs.

The MIL, the DTC, the Temporary DTC, and the freeze frame data can be cleared by using the scan tool Clear command or by disconnecting the battery.

A/T Clutch Pressure Control Solenoid Valve B Operation Diagram. Scheme 224

Gear Position To Shift Status Graph. Scheme 225

A/T CLUTCH PRESSURE CONTROL SOLENOID VALVE COMBINATION TABLE

ENABLE CONDITIONS

The transmission is held in 3rd gear against the 3rd --> 4th gear upshift command.

Start the engine, and accelerate the vehicle until the transmission shifts into 5th gear in D position.

1. Drive the vehicle in this manner only if the traffic regulations and ambient conditions allow.

When a malfunction is detected during the first drive cycle, a Temporary DTC is stored in the PCM memory. If the malfunction recurs during the next (second) drive cycle, the MIL comes on and the DTC and the freeze frame data are stored.

The MIL will be cleared if the malfunction does not recur during three consecutive trips in which the diagnostic runs.

The MIL, the DTC, the Temporary DTC, and the freeze frame data can be cleared by using the scan tool Clear command or by disconnecting the battery.

A/T Clutch Pressure Control Solenoid Valve B Operation Diagram. Scheme 226

Gear Position To Shift Status Graph. Scheme 227

A/T CLUTCH PRESSURE CONTROL SOLENOID VALVE COMBINATION TABLE

ENABLE CONDITIONS

The engine speed flares when upshifting to 2nd - 3rd, 3rd - 4th, and 4th - 5th.

Start the engine, and accelerate the vehicle until the transmission shifts into 5th gear in D position.

1. Drive the vehicle in this manner only if the traffic regulations and ambient conditions allow.

When a malfunction is detected during the first drive cycle, a Temporary DTC is stored in the PCM memory. If the malfunction recurs during the next (second) drive cycle, the MIL comes on and the DTC and the freeze frame data are stored.

The MIL will be cleared if the malfunction does not recur during three consecutive trips in which the diagnostic runs.

The MIL, the DTC, the Temporary DTC, and the freeze frame data can be cleared by using the scan tool Clear command or by disconnecting the battery.

Shift Control System Diagram. Scheme 228

Gear Position To Shift Status Graph. Scheme 229

ENABLE CONDITIONS

The transmission is down shifted from 3rd gear to 2nd gear against the 3rd --> 4th gear upshift command.

Start the engine, and accelerate the vehicle until the transmission shifts into 5th gear in D position.

1. Drive the vehicle in this manner only if the traffic regulations and ambient conditions allow.

When a malfunction is detected during the first drive cycle, a Temporary DTC is stored in the PCM memory. If the malfunction recurs during the next (second) drive cycle, the MIL comes on and the DTC and the freeze frame data are stored.

The MIL will be cleared if the malfunction does not recur during three consecutive trips in which the diagnostic runs.

The MIL, the DTC, the Temporary DTC, and the freeze frame data can be cleared by using the scan tool Clear command or by disconnecting the battery.

3rd Clutch Transmission Fluid Pressure Switch Circuit Diagram. Scheme 230

Gear Position To Shift Status Graph. Scheme 231

ENABLE CONDITIONS

The 3rd clutch transmission fluid pressure switch input signal is low when driving in 4th gear.

Start the engine, and drive the vehicle in D position and 4th gear for at least 2 seconds.

1. Drive the vehicle in this manner only if the traffic regulations and ambient conditions allow.

When a malfunction is detected, the D indicator blinks, and the DTC and the freeze frame data are stored in the PCM memory. The MIL does not come on.

ENABLE CONDITIONS

The 3rd clutch transmission fluid pressure switch input signal is high when driving in 3rd gear.

Start the engine, and drive the vehicle in D position and 3rd gear for at least 2 seconds.

1. Drive the vehicle in this manner only if the traffic regulations and ambient conditions allow.

When a malfunction is detected, the D indicator blinks, and the DTC and the freeze frame data are stored in the PCM memory. The MIL does not come on.

ENABLE CONDITIONS

The 4th clutch transmission fluid pressure switch input signal is low when driving in 5th gear.

Start the engine, and drive the vehicle in D position and 5th gear for at least 2 seconds.

1. Drive the vehicle in this manner only if the traffic regulations and ambient conditions allow.

When a malfunction is detected, the D indicator blinks, and the DTC and the freeze frame data are stored in the PCM memory. The MIL does not come on.

ENABLE CONDITIONS

The 4th clutch transmission fluid pressure switch input signal is high when driving in 4th gear.

Start the engine, and drive the vehicle in D position and 4th gear for at least 2 seconds.

1. Drive the vehicle in this manner only if the traffic regulations and ambient conditions allow.

When a malfunction is detected, the D indicator blinks, and the DTC and the freeze frame data are stored in the PCM memory. The MIL does not come on.

ENABLE CONDITIONS

The measured current for the PCM's command value is as specified here for at least 1 second.

MALFUNCTION THRESHOLD

When a malfunction is detected, the MIL comes on and the DTC and the freeze frame data are stored in the PCM memory.

The MIL will be cleared if the malfunction does not recur during three consecutive trips in which the diagnostic runs.

The MIL, the DTC, and the freeze frame data can be cleared by using the scan tool Clear command or by disconnecting the battery.

A/T Clutch Pressure Control Solenoid Valve A - Circuit Diagram. Scheme 232

A/T Clutch Pressure Control Solenoid Valve Failure Area Graph. Scheme 233

ENABLE CONDITIONS

The measured current for the PCM's command value is as specified here for at least 1 second.

MALFUNCTION THRESHOLD

When a malfunction is detected, the MIL comes on and the DTC and the freeze frame data are stored in the PCM memory.

The MIL will be cleared if the malfunction does not recur during three consecutive trips in which the diagnostic runs.

The MIL, the DTC, and the freeze frame data can be cleared by using the scan tool Clear command or by disconnecting the battery.

A/T Clutch Pressure Control Solenoid Valve B Circuit Diagram. Scheme 234

Current To Duty Failure Area Graph. Scheme 235

ENABLE CONDITIONS

The measured current for the PCM's command value is as specified here for at least 1 second.

MALFUNCTION THRESHOLD

When a malfunction is detected, the MIL comes on and the DTC and the freeze frame data are stored in the PCM memory.

The MIL will be cleared if the malfunction does not recur during three consecutive trips in which the diagnostic runs.

The MIL, the DTC, and the freeze frame data can be cleared by using the scan tool Clear command or by disconnecting the battery.

A/T Clutch Pressure Control Solenoid Valve B Circuit Diagram. Scheme 236

A/T Clutch Pressure Control Solenoid Valve Failure Area Graph. Scheme 237

ENABLE CONDITIONS

The measured current for the PCM's command value is as specified here for at least 1 second.

MALFUNCTION THRESHOLD

When a malfunction is detected, the MIL comes on and the DTC and the freeze frame data are stored in the PCM memory.

The MIL will be cleared if the malfunction does not recur during three consecutive trips in which the diagnostic runs.

The MIL, the DTC, and the freeze frame data can be cleared by using the scan tool Clear command or by disconnecting the battery.

A/T Clutch Pressure Control Solenoid Valve C - Circuit Diagram. Scheme 238

Current To Duty Failure Area Graph. Scheme 239

ENABLE CONDITIONS

The measured current for the PCM's command value is as specified here for at least 1 second.

MALFUNCTION THRESHOLD

When a malfunction is detected, the MIL comes on and the DTC and the freeze frame data are stored in the PCM memory.

The MIL will be cleared if the malfunction does not recur during three consecutive trips in which the diagnostic runs.

The MIL, the DTC, and the freeze frame data can be cleared by using the scan tool Clear command or by disconnecting the battery.

A/T Clutch Pressure Control Solenoid Valve C - Circuit Diagram. Scheme 240

A/T Clutch Pressure Control Solenoid Valve Failure Area Graph. Scheme 241

ENABLE CONDITIONS

The measured current for the PCM's command value is as specified here for at least 1 second.

MALFUNCTION THRESHOLD

When a malfunction is detected, the MIL comes on and the DTC and the freeze frame data are stored in the PCM memory.

The MIL will be cleared if the malfunction does not recur during three consecutive trips in which the diagnostic runs.

The MIL, the DTC, and the freeze frame data can be cleared by using the scan tool Clear command or by disconnecting the battery.

Shift Solenoid Valve A - Circuit Diagram (Short). Scheme 242

Shift Solenoid Valve Driving Signal Combination Chart. Scheme 243

ENABLE CONDITIONS

The return signal does not match the command to turn ON shift solenoid valve A for at least 1 second.

Start the engine, and drive the vehicle with the 1st gear in the D position for at least 1 second.

1. Drive the vehicle in this manner only if the traffic regulations and ambient conditions allow.

When a malfunction is detected, the MIL comes on and the DTC and the freeze frame data are stored in the PCM memory.

The MIL will be cleared if the malfunction does not recur during three consecutive trips in which the diagnostic runs.

The MIL, the DTC, and the freeze frame data can be cleared by using the scan tool Clear command or by disconnecting the battery.

Shift Solenoid Valve A - Circuit Diagram (Short). Scheme 244

Shift Solenoid Valve Driving Signal Combination Chart. Scheme 245

ENABLE CONDITIONS

The return signal does not match the command to turn OFF shift solenoid valve A for at least 1 second.

Start the engine, shift to P position, and wait for at least 1 second.

When a malfunction is detected, the MIL comes on and the DTC and the freeze frame data are stored in the PCM memory.

The MIL will be cleared if the malfunction does not recur during three consecutive trips in which the diagnostic runs.

The MIL, the DTC, and the freeze frame data can be cleared by using the scan tool Clear command or by disconnecting the battery.

Shift Solenoid Valve B - Circuit Diagram (Short). Scheme 246

Shift Solenoid Valve Driving Signal Combination Chart. Scheme 247

ENABLE CONDITIONS

The return signal does not match the command to turn ON shift solenoid valve B for at least 1 second.

Start the engine, shift to P position, and wait for at least 1 second.

When a malfunction is detected, the MIL comes on and the DTC and the freeze frame data are stored in the PCM memory.

The MIL will be cleared if the malfunction does not recur during three consecutive trips in which the diagnostic runs.

The MIL, the DTC, and the freeze frame data can be cleared by using the scan tool Clear command or by disconnecting the battery.

Shift Solenoid Valve B - Circuit Diagram (Short). Scheme 248

Shift Solenoid Valve Driving Signal Combination Chart. Scheme 249

ENABLE CONDITIONS

The return signal does not match the command to turn OFF shift solenoid valve B for at least 1 second.

Start the engine, drive the vehicle so that it shifts from 1st to 4th gear in the D position, then drive the vehicle in 4th gear for at least 1 second.

1. Drive the vehicle in this manner only if the traffic regulations and ambient conditions allow.

When a malfunction is detected, the MIL comes on and the DTC and the freeze frame data are stored in the PCM memory.

The MIL will be cleared if the malfunction does not recur during three consecutive trips in which the diagnostic runs.

The MIL, the DTC, and the freeze frame data can be cleared by using the scan tool Clear command or by disconnecting the battery.

Shift Solenoid Valve C - Circuit Diagram. Scheme 250

Shift Solenoid Valve Driving Signal Combination Chart. Scheme 251

ENABLE CONDITIONS

The return signal does not match the command to turn ON shift solenoid valve C for at least 1 second.

Start the engine, and drive the vehicle in 1st gear in the D position for at least 1 second.

1. Drive the vehicle in this manner only if the traffic regulations and ambient conditions allow.

When a malfunction is detected, the MIL comes on and the DTC and the freeze frame data are stored in the PCM memory.

The MIL will be cleared if the malfunction does not recur during three consecutive trips in which the diagnostic runs.

The MIL, the DTC, and the freeze frame data can be cleared by using the scan tool Clear command or by disconnecting the battery.

Shift Solenoid Valve C - Circuit Diagram. Scheme 252

Shift Solenoid Valve Driving Signal Combination Chart. Scheme 253

ENABLE CONDITIONS

The return signal does not match the command to turn OFF shift solenoid valve C for at least 1 second.

Start the engine, shift to P position, and wait for at least 1 second.

When a malfunction is detected, the MIL comes on and the DTC and the freeze frame data are stored in the PCM memory.

The MIL will be cleared if the malfunction does not recur during three consecutive trips in which the diagnostic runs.

The MIL, the DTC, and the freeze frame data can be cleared by using the scan tool Clear command or by disconnecting the battery.

Identifying Intake Manifold Tuning (Intake Manifold Runner Control) Valve. Scheme 254

ENABLE CONDITIONS

The PCM sends a close (long runner) command, and no long runner return signal is received for at least 2 seconds.

1. Start the engine. Hold the engine speed at 3,000 rpm without load (in Park or neutral) until the radiator fan comes on.
2. Let the engine idle for at least 2 seconds.

When a malfunction is detected during the first drive cycle, a Temporary DTC is stored in the PCM memory. If the malfunction recurs during the next (second) drive cycle, the MIL comes on and the DTC and the freeze frame data are stored.

The MIL will be cleared if the malfunction does not recur during three consecutive trips in which the diagnostic runs.

The MIL, the DTC, the Temporary DTC, and the freeze frame data can be cleared by using the scan tool Clear command or by disconnecting the battery.

Identifying Intake Manifold Tuning (Intake Manifold Runner Control) Valve. Scheme 255

ENABLE CONDITIONS

The PCM sends an open (short runner) command, and no short runner return signal is received for at least 2 seconds.

1. Start the engine. Hold the engine speed at 3,000 rpm without load (in Park or neutral) until the radiator fan comes on.
2. Let the engine idle for at least 2 seconds.

When a malfunction is detected during the first drive cycle, a Temporary DTC is stored in the PCM memory. If the malfunction recurs during the next (second) drive cycle, the MIL comes on and the DTC and the freeze frame data are stored.

The MIL will be cleared if the malfunction does not recur during three consecutive trips in which the diagnostic runs.

The MIL, the DTC, the Temporary DTC, and the freeze frame data can be cleared by using the scan tool Clear command or by disconnecting the battery.

Barometric Pressure (BARO) Sensor Circuit Diagram. Scheme 256

Barometric Pressure (BARO) Sensor Voltage - Graph. Scheme 257

ENABLE CONDITIONS

The BARO sensor output voltage is between 3.59 V to 4.49 V for at least 2 seconds.

When a malfunction is detected, the MIL comes on and the DTC and the freeze frame data are stored in the PCM memory.

The MIL will be cleared if the malfunction does not recur during three consecutive trips in which the diagnostic runs.

The MIL, the DTC, and the freeze frame data can be cleared by using the scan tool Clear command or by disconnecting the battery.

Intake Air Temperature (IAT) Sensor Circuit Range/Performance Problem - Graph. Scheme 258

ENABLE CONDITIONS

A malfunction is detected if these three conditions are not present after the engine and the ignition switch have been off for at least 6 hours before restarting the engine.

1. The temperature difference (IAT minus ECT1) is 84 °F (28 °C) or more.
2. The temperature difference (IAT minus ECT2) is 54 °F (12 °C) or more.
3. The temperature difference (ECT2 minus ECT1) is 95 °F (35 °C) or more.

1. Turn the ignition off, and wait at least 6 hours.
2. Start the engine, and let it idle for at least 10 seconds.

When a malfunction is detected during the first drive cycle, a Temporary DTC is stored in the PCM memory. If the malfunction recurs during the next (second) drive cycle, the MIL comes on and the DTC and the freeze frame data are stored.

The MIL will be cleared if the malfunction does not recur during three consecutive trips in which the diagnostic runs.

The MIL, the DTC, the Temporary DTC, and the freeze frame data can be cleared by using the scan tool Clear command or by disconnecting the battery.

Manifold Absolute Pressure (MAP) Sensor Output Voltage - Graph. Scheme 259

Manifold Absolute Pressure (MAP) Sensor Signal Lower Than Expected - Graph. Scheme 260

ENABLE CONDITIONS

1. The MAP sensor output is 36 kPa (277 mmHg, 10.9 in.Hg) or less for at least 2 seconds when atmospheric pressure is 103 kPa (776 mmHg, 30.5 in.Hg).
2. The MAP sensor output is 53 kPa (405 mmHg, 15.9 in.Hg) or less for at least 2 seconds when atmospheric pressure is 61 kPa (460 mmHg, 18.1 in.Hg).

1. Start the engine. Hold the engine speed at 3,000 rpm without load (in Park or neutral) until the radiator fan comes on.
2. Drive the vehicle at a speed of 15 mph (24 km/h) or more with a throttle position as specified under Enable Conditions for at least 2 seconds.

1. Drive the vehicle in this manner only if the traffic regulations and ambient conditions allow.

When a malfunction is detected during the first drive cycle, a Temporary DTC is stored in the PCM memory. If the malfunction recurs during the next (second) drive cycle, the MIL comes on and the DTC and the freeze frame data are stored.

The MIL will be cleared if the malfunction does not recur during three consecutive trips in which the diagnostic runs.

The MIL, the DTC, the Temporary DTC, and the freeze frame data can be cleared by using the scan tool Clear command or by disconnecting the battery.

Manifold Absolute Pressure (MAP) Sensor Output Voltage - Graph. Scheme 261

Manifold Absolute Pressure (MAP) Sensor Signal Higher Than Expected - Graph. Scheme 262

ENABLE CONDITIONS

The MAP sensor output is 36 kPa (277 mmHg, 10.9 in.Hg) or more for at least 2 seconds.

Driving Pattern - Graph. Scheme 263

1. Start the engine. Hold the engine speed at 3,000 rpm without load (in Park or neutral) until the radiator fan comes on.
2. Drive the vehicle at a steady speed between 55 - 75 mph (88 - 120 km/h) for at least 10 seconds.
3. Then, decelerate with the throttle valve fully closed for at least 2 seconds.

1. Drive the vehicle in this manner only if the traffic regulations and ambient conditions allow.

When a malfunction is detected during the first drive cycle, a Temporary DTC is stored in the PCM memory. If the malfunction recurs during the next (second) drive cycle, the MIL comes on and the DTC and the freeze frame data are stored.

The MIL will be cleared if the malfunction does not recur during three consecutive trips in which the diagnostic runs.

The MIL, the DTC, the Temporary DTC, and the freeze frame data can be cleared by using the scan tool Clear command or by disconnecting the battery.

Electrical Load Detector (ELD) Circuit Diagram. Scheme 264

ENABLE CONDITIONS

The ELD output voltage is 0.27 V or less for at least 5 seconds.

When a malfunction is detected, the DTC and the freeze frame data are stored in the PCM memory. The MIL does not come on.

ENABLE CONDITIONS

The ELD output voltage is 4.95 V or more for at least 5 seconds.

When a malfunction is detected, the DTC and the freeze frame data are stored in the PCM memory. The MIL does not come on.

ENABLE CONDITIONS

One of these conditions is met.

1. The FTP sensor output fluctuates by 0.6 kPa (5 mmHg, 0.1 in.Hg) or more, or -0.6 kPa (-5 mmHg, -0.1 in.Hg) or less for at least 3 seconds.
2. The FTP sensor output value is -1.3 kPa (-10 mmHg, -0.3 in.Hg) or less for at least 3 seconds.

Start the engine, and let it idle until the radiator fan comes on.

When a malfunction is detected during the first drive cycle, a Temporary DTC is stored in the PCM memory. If the malfunction recurs during the next (second) drive cycle, the MIL comes on and the DTC and the freeze frame data are stored.

The MIL will be cleared if the malfunction does not recur during three consecutive trips in which the diagnostic runs.

The MIL, the DTC, the Temporary DTC, and the freeze frame data can be cleared by using the scan tool Clear command or by disconnecting the battery.

Charging System Diagram. Scheme 265

ENABLE CONDITIONS

The IGP terminal voltage is 16.0 V or more for at least 60 seconds.

When a malfunction is detected, the DTC and the freeze frame data are stored in the PCM memory. The MIL does not come on.

ENABLE CONDITIONS

The communication signal is input from the PCM for at least 2 seconds after the ETCS control relay is turned off.

When a malfunction is detected, the MIL comes on and the DTC and the freeze frame data are stored in the PCM memory.

The MIL will be cleared if the malfunction does not recur during three consecutive trips in which the diagnostic runs.

The MIL, the DTC, and the freeze frame data can be cleared by using the scan tool Clear command or by disconnecting the battery.

Electronic Throttle Control System (ETCS) Control Relay. Scheme 266

ENABLE CONDITIONS

The voltage is not applied from the ETCS control relay for at least 0.2 seconds.

When a malfunction is detected, the MIL comes on and the DTC and the freeze frame data are stored in the PCM memory.

The MIL will be cleared if the malfunction does not recur during three consecutive trips in which the diagnostic runs.

The MIL, the DTC, and the freeze frame data can be cleared by using the scan tool Clear command or by disconnecting the battery.

Throttle Valve Default Position - Graph. Scheme 267

ENABLE CONDITIONS

The throttle valve is at a position greater than +5 ° from the fully closed position, or at a position lower than +3 ° from the fully closed position, for at least 2.5 seconds.

1. Start the engine. Hold the engine speed at 3,000 rpm without load (in Park or neutral) until the radiator fan comes on, then let it idle.
2. Turn off the ignition switch.
3. Turn on the ignition switch.

When a malfunction is detected, the MIL comes on and the DTC and the freeze frame data are stored in the PCM memory.

The MIL will be cleared if the malfunction does not recur during three consecutive trips in which the diagnostic runs.

The MIL, the DTC, and the freeze frame data can be cleared by using the scan tool Clear command or by disconnecting the battery.

Throttle Valve Default Position - Graph. Scheme 268

ENABLE CONDITIONS

The throttle valve opening angle is 17 ° or more, or 11 ° or less, for at least 2.5 seconds.

1. Start the engine. Hold the engine speed at 3,000 rpm without load (in Park or neutral) until the radiator fan comes on, then let it idle.
2. Turn off the ignition switch.
3. Turn on the ignition switch.

When a malfunction is detected, the MIL comes on and the DTC and the freeze frame data are stored in the PCM memory.

The MIL will be cleared if the malfunction does not recur during three consecutive trips in which the diagnostic runs.

The MIL, the DTC, and the freeze frame data can be cleared by using the scan tool Clear command or by disconnecting the battery.

Charging System Diagram. Scheme 269

ENABLE CONDITIONS

The IGP terminal voltage is 12.0 V or less, and the alternator power generation amount is within 1.0 % to 50.0 % for at least 60 seconds.

1. Start the engine.
2. Maintain an engine speed of 500 rpm to 3,000 rpm.
3. Turn on the headlights (high beam) and rear window defogger.

When a malfunction is detected, the DTC and the freeze frame data are stored in the PCM memory. The MIL does not come on.

ENABLE CONDITIONS

The IGP terminal voltage is 12.0 V or less, and the alternator power generation amount is 0.5 % or less for at least 60 seconds.

1. Start the engine.
2. Maintain an engine speed of 500 rpm to 3,000 rpm.
3. Turn on the headlights (high beam) and the rear window defogger.

When a malfunction is detected, the DTC and the freeze frame data are stored in the PCM memory. The MIL does not come on.

ENABLE CONDITIONS

One of the conditions in this table must be met for at least 0.25 seconds* (0.5 seconds**).

MALFUNCTION THRESHOLD

When a malfunction is detected, the MIL comes on and the DTC and the freeze frame data are stored in the PCM memory.

The MIL will be cleared if the malfunction does not recur during three consecutive trips in which the diagnostic runs.

The MIL, the DTC, and the freeze frame data can be cleared by using the scan tool Clear command or by disconnecting the battery.

Throttle Position (TP) Sensor - Circuit Diagram. Scheme 270

ENABLE CONDITIONS

The current flow to the throttle actuator is 16 A or more for at least 0.2 seconds.

When a malfunction is detected, the MIL comes on and the DTC and the freeze frame data are stored in the PCM memory.

The MIL will be cleared if the malfunction does not recur during three consecutive trips in which the diagnostic runs.

The MIL, the DTC, and the freeze frame data can be cleared by using the scan tool Clear command or by disconnecting the battery.

Accelerator Pedal Position (APP) Sensor Circuit Diagram. Scheme 271

ENABLE CONDITIONS

The APP sensor A output voltage is 0.1 V or less for at least 0.2 seconds.

When a malfunction is detected, the MIL comes on and the DTC and the freeze frame data are stored in the PCM memory.

The MIL will be cleared if the malfunction does not recur during three consecutive trips in which the diagnostic runs.

The MIL, the DTC, and the freeze frame data can be cleared by using the scan tool Clear command or by disconnecting the battery.

Accelerator Pedal Position (APP) Sensor Circuit Diagram. Scheme 272

ENABLE CONDITIONS

The APP sensor A output voltage is 4.85 V or more for at least 0.2 seconds.

When a malfunction is detected, the MIL comes on and the DTC and the freeze frame data are stored in the PCM memory.

The MIL will be cleared if the malfunction does not recur during three consecutive trips in which the diagnostic runs.

The MIL, the DTC, and the freeze frame data can be cleared by using the scan tool Clear command or by disconnecting the battery.

Accelerator Pedal Position (APP) Sensor Circuit Diagram. Scheme 273

ENABLE CONDITIONS

The APP sensor B output voltage is 0.1 V or less for at least 0.2 seconds.

When a malfunction is detected, the MIL comes on and the DTC and the freeze frame data are stored in the PCM memory.

The MIL will be cleared if the malfunction does not recur during three consecutive trips in which the diagnostic runs.

The MIL, the DTC, and the freeze frame data can be cleared by using the scan tool Clear command or by disconnecting the battery.

Accelerator Pedal Position (APP) Sensor Circuit Diagram. Scheme 274

ENABLE CONDITIONS

The APP sensor B output voltage is 4.0 V or more for at least 0.2 seconds.

When a malfunction is detected, the MIL comes on and the DTC and the freeze frame data are stored in the PCM memory.

The MIL will be cleared if the malfunction does not recur during three consecutive trips in which the diagnostic runs.

The MIL, the DTC, and the freeze frame data can be cleared by using the scan tool Clear command or by disconnecting the battery.

Throttle Position (TP) Sensor - Circuit Diagram. Scheme 275

Throttle Position (TP) Sensor Voltage - Graph. Scheme 276

ENABLE CONDITIONS

The difference between the throttle valve positions that TP sensor A and TP sensor B determine exceeds the set values for at least 0.2 seconds.

MALFUNCTION THRESHOLD

When a malfunction is detected, the MIL comes on and the DTC and the freeze frame data are stored in the PCM memory.

The MIL will be cleared if the malfunction does not recur during three consecutive trips in which the diagnostic runs.

The MIL, the DTC, and the freeze frame data can be cleared by using the scan tool Clear command or by disconnecting the battery.

Accelerator Pedal Position (APP) Sensor Circuit Diagram. Scheme 277

Accelerator Pedal Position (APP) Sensor Voltage - Graph. Scheme 278

ENABLE CONDITIONS

The voltage difference of APP sensor B is other than ± 0.18 V for at least 0.3 seconds.

When a malfunction is detected, the MIL comes on and the DTC and the freeze frame data are stored in the PCM memory.

The MIL will be cleared if the malfunction does not recur during three consecutive trips in which the diagnostic runs.

The MIL, the DTC, and the freeze frame data can be cleared by using the scan tool Clear command or by disconnecting the battery.

Identifying Throttle Actuator Control System Idle Position. Scheme 279

ENABLE CONDITIONS

One of these conditions must be met for at least 0.7 seconds.

1. The registration of the throttle valve fully closed position is not completed within a predetermined time after the ignition switch is turned ON.
2. The registered value of the throttle valve fully closed position is 0.74 V *1 , 1.61 V *2 or more, or 0.49 V *1 , 1.37 V *2 or less.

*1: TP sensor A

*2: TP sensor B

When a malfunction is detected, the MIL comes on and the DTC and the freeze frame data are stored in the PCM memory.

The MIL will be cleared if the malfunction does not recur during three consecutive trips in which the diagnostic runs.

The MIL, the DTC, and the freeze frame data can be cleared by using the scan tool Clear command or by disconnecting the battery.

Intake Air Temperature (IAT) Sensor Circuit Range/Performance Problem - Graph. Scheme 280

ENABLE CONDITIONS

A malfunction is detected if these three conditions are not present after the engine and the ignition switch have been off for at least 6 hours before restarting the engine.

1. The temperature difference (IAT minus ECT1) is 84 °F (28 °C) or more.
2. The temperature difference (IAT minus ECT2) is 54 °F (12 °C) or more.
3. The temperature difference (ECT2 minus ECT1) is 95 °F (35 °C) or more.

1. Turn the ignition off, and wait at least 6 hours.
2. Start the engine, and let it idle for at least 10 seconds.

When a malfunction is detected during the first drive cycle, a Temporary DTC is stored in the PCM memory. If the malfunction recurs during the next (second) drive cycle, the MIL comes on and the DTC and the freeze frame data are stored.

The MIL will be cleared if the malfunction does not recur during three consecutive trips in which the diagnostic runs.

The MIL, the DTC, the Temporary DTC, and the freeze frame data can be cleared by using the scan tool Clear command or by disconnecting the battery.

Engine Coolant Temperature (ECT) Sensor 2 Circuit Diagram. Scheme 281

Engine Coolant Temperature Sensor Voltage - Graph. Scheme 282

ENABLE CONDITIONS

ECT sensor 2 output voltage is 0.08 V or less for at least 2 seconds.

When a malfunction is detected, the MIL comes on and the DTC and the freeze frame data are stored in the PCM memory.

The MIL will be cleared if the malfunction does not recur during three consecutive trips in which the diagnostic runs.

The MIL, the DTC, and the freeze frame data can be cleared by using the scan tool Clear command or by disconnecting the battery.

Engine Coolant Temperature (ECT) Sensor 2 Circuit Diagram. Scheme 283

Engine Coolant Temperature Sensor Voltage - Graph. Scheme 284

ENABLE CONDITIONS

ECT sensor 2 output voltage is 4.92 V or more for at least 2 seconds.

When a malfunction is detected, the MIL comes on and the DTC and the freeze frame data are stored in the PCM memory.

The MIL will be cleared if the malfunction does not recur during three consecutive trips in which the diagnostic runs.

The MIL, the DTC, and the freeze frame data can be cleared by using the scan tool Clear command or by disconnecting the battery.

Barometric Pressure (BARO) Sensor Voltage - Graph. Scheme 285

Barometric Pressure (BARO) Sensor Throttle Position - Graph. Scheme 286

ENABLE CONDITIONS

The difference between the BARO sensor output and the MAP sensor output is 26 kPa (190 mmHg, 7.5 in.Hg) or more for at least 3 seconds.

1. Start the engine. Hold the engine speed at 3,000 rpm without load (in Park or neutral) until the radiator fan comes on.
2. Drive the vehicle with the throttle position as specified under Enable Conditions for at least 3 seconds. Drive the vehicle in this manner only if the traffic regulations and ambient conditions allow.

When a malfunction is detected during the first drive cycle, a Temporary DTC is stored in the PCM memory. If the malfunction recurs during the next (second) drive cycle, the MIL comes on and the DTC and the freeze frame data are stored.

The MIL will be cleared if the malfunction does not recur during three consecutive trips in which the diagnostic runs.

The MIL, the DTC, the Temporary DTC, and the freeze frame data can be cleared by using the scan tool Clear command or by disconnecting the battery.

Barometric Pressure (BARO) Sensor Circuit Diagram. Scheme 287

Barometric Pressure (BARO) Sensor Voltage - Graph. Scheme 288

ENABLE CONDITIONS

The BARO sensor output voltage is 1.58 V or less for at least 2 seconds.

When a malfunction is detected, the MIL comes on and the DTC and the freeze frame data are stored in the PCM memory.

The MIL will be cleared if the malfunction does not recur during three consecutive trips in which the diagnostic runs.

The MIL, the DTC, and the freeze frame data can be cleared by using the scan tool Clear command or by disconnecting the battery.

Barometric Pressure (BARO) Sensor Circuit Diagram. Scheme 289

Barometric Pressure (BARO) Sensor Voltage - Graph. Scheme 290

ENABLE CONDITIONS

The BARO sensor output voltage is 4.49 V or more for at least 2 seconds.

When a malfunction is detected, the MIL comes on and the DTC and the freeze frame data are stored in the PCM memory.

The MIL will be cleared if the malfunction does not recur during three consecutive trips in which the diagnostic runs.

The MIL, the DTC, and the freeze frame data can be cleared by using the scan tool Clear command or by disconnecting the battery.

Rear Air/Fuel Ratio (A/F) Sensor (Bank 1, Sensor 1) - Circuit Diagram. Scheme 291

ENABLE CONDITIONS

The IPB1 terminal voltage is 2.0 V or less, or 5.6 V or more, for at least 15 seconds.

Start the engine. Hold the engine speed at 3,000 rpm without load (in Park or neutral) until the radiator fan comes on, then let it idle for 2 minutes.

When a malfunction is detected, the MIL comes on and the DTC and the freeze frame data are stored in the PCM memory.

The MIL will be cleared if the malfunction does not recur during three consecutive trips in which the diagnostic runs.

The MIL, the DTC, and the freeze frame data can be cleared by using the scan tool Clear command or by disconnecting the battery.

Rear Air/Fuel Ratio (A/F) Sensor (Bank 1, Sensor 1) - Circuit Diagram. Scheme 292

ENABLE CONDITIONS

The IPB1 input terminal voltage is 1.0 V or less for at least 5 seconds* (85 seconds)**.

Start the engine. Hold the engine speed at 3,000 rpm without load (in Park or neutral) until the radiator fan comes on, then let it idle for 2 minutes.

When a malfunction is detected, the MIL comes on and the DTC and the freeze frame data are stored in the PCM memory.

The MIL will be cleared if the malfunction does not recur during three consecutive trips in which the diagnostic runs.

The MIL, the DTC, and the freeze frame data can be cleared by using the scan tool Clear command or by disconnecting the battery.

Front Air/Fuel Ratio (A/F) Sensor (Bank 2, Sensor 1) - Circuit Diagram. Scheme 293

ENABLE CONDITIONS

The IPB2 terminal voltage is 5.6 V or more, or 2.0 V or less, for at least 15 seconds.

Start the engine. Hold the engine speed at 3,000 rpm without load (in Park or neutral) until the radiator fan comes on, then let it idle for 2 minutes.

When a malfunction is detected, the MIL comes on and the DTC and the freeze frame data are stored in the PCM memory.

The MIL will be cleared if the malfunction does not recur during three consecutive trips in which the diagnostic runs.

The MIL, the DTC, and the freeze frame data can be cleared by using the scan tool Clear command or by disconnecting the battery.

Front Air/Fuel Ratio (A/F) Sensor (Bank 2, Sensor 1) - Circuit Diagram. Scheme 294

ENABLE CONDITIONS

The IPB2 input terminal voltage is 1.0 V or less for at least 5 seconds* (85 seconds**).

Start the engine. Hold the engine speed at 3,000 rpm without load (in Park or neutral) until the radiator fan comes on, then let it idle for 2 minutes.

When a malfunction is detected, the MIL comes on and the DTC and the freeze frame data are stored in the PCM memory.

The MIL will be cleared if the malfunction does not recur during three consecutive trips in which the diagnostic runs.

The MIL, the DTC, and the freeze frame data can be cleared by using the scan tool Clear command or by disconnecting the battery.

Rear Air/Fuel Ratio (A/F) Sensor (Bank 1, Sensor 1) - Circuit Diagram. Scheme 295

Air/Fuel Ratio Sensor Voltage Graph. Scheme 296

ENABLE CONDITIONS

The VSB1 terminal voltage repeatedly fluctuates from above 4.8 V to below 3.4 V, 150 times or more.

Start the engine. Hold the engine speed at 3,000 rpm without load (in Park or neutral) until the radiator fan comes on, then let it idle for 2 minutes.

When a malfunction is detected, the MIL comes on and the DTC and the freeze frame data are stored in the PCM memory.

The MIL will be cleared if the malfunction does not recur during three consecutive trips in which the diagnostic runs.

The MIL, the DTC, and the freeze frame data can be cleared by using the scan tool Clear command or by disconnecting the battery.

Rear Air/Fuel Ratio (A/F) Sensor (Bank 1, Sensor 1) - Circuit Diagram. Scheme 297

ENABLE CONDITIONS

The IPB1 input terminal voltage is 1.0 V or less for at least 5 seconds* (85 seconds**).

Start the engine. Hold the engine speed at 3,000 rpm without load (in Park or neutral) until the radiator fan comes on, then let it idle for 2 minutes.

When a malfunction is detected, the MIL comes on and the DTC and the freeze frame data are stored in the PCM memory.

The MIL will be cleared if the malfunction does not recur during three consecutive trips in which the diagnostic runs.

The MIL, the DTC, and the freeze frame data can be cleared by using the scan tool Clear command or by disconnecting the battery.

Front Air/Fuel Ratio (A/F) Sensor (Bank 2, Sensor 1) - Circuit Diagram. Scheme 298

Air/Fuel Ratio Sensor Voltage Graph. Scheme 299

ENABLE CONDITIONS

The VSB2 terminal voltage repeatedly fluctuates from above 4.8 V to below 3.4 V, 150 times or more.

Start the engine. Hold the engine speed at 3,000 rpm without load (in Park or neutral) until the radiator fan comes on, then let it idle for 2 minutes.

When a malfunction is detected, the MIL comes on and the DTC and the freeze frame data are stored in the PCM memory.

The MIL will be cleared if the malfunction does not recur during three consecutive trips in which the diagnostic runs.

The MIL, the DTC, and the freeze frame data can be cleared by using the scan tool Clear command or by disconnecting the battery.

Front Air/Fuel Ratio (A/F) Sensor (Bank 2, Sensor 1) - Circuit Diagram. Scheme 300

ENABLE CONDITIONS

The IPB2 input terminal voltage is 1.0 V or less for at least 5 seconds*, 85 seconds**.

Start the engine. Hold the engine speed at 3,000 rpm without load (in Park or neutral) until the radiator fan comes on, then let it idle for 2 minutes.

When a malfunction is detected, the MIL comes on and the DTC and the freeze frame data are stored in the PCM memory.

The MIL will be cleared if the malfunction does not recur during three consecutive trips in which the diagnostic runs.

The MIL, the DTC, and the freeze frame data can be cleared by using the scan tool Clear command or by disconnecting the battery.

Rear Air/Fuel Ratio (A/F) Sensor (Bank 1, Sensor 1) - Circuit Diagram. Scheme 301

ENABLE CONDITIONS

The VSB1 terminal voltage is 6.0 V or more, and the PCM internal signal voltage is 4.6 V or more, for at least 5 seconds.

Start the engine. Hold the engine speed at 3,000 rpm without load (in Park or neutral) until the radiator fan comes on, then let it idle for 2 minutes.

When a malfunction is detected, the MIL comes on and the DTC and the freeze frame data are stored in the PCM memory.

The MIL will be cleared if the malfunction does not recur during three consecutive trips in which the diagnostic runs.

The MIL, the DTC, and the freeze frame data can be cleared by using the scan tool Clear command or by disconnecting the battery.

Rear Air/Fuel Ratio (A/F) Sensor (Bank 1, Sensor 1) - Circuit Diagram. Scheme 302

ENABLE CONDITIONS

The VSB1 terminal voltage is 0.4 V or less for at least 5 seconds.

Start the engine. Hold the engine speed at 3,000 rpm without load (in Park or neutral) until the radiator fan comes on, then let it idle for 2 minutes.

When a malfunction is detected, the MIL comes on and the DTC and the freeze frame data are stored in the PCM memory.

The MIL will be cleared if the malfunction does not recur during three consecutive trips in which the diagnostic runs.

The MIL, the DTC, and the freeze frame data can be cleared by using the scan tool Clear command or by disconnecting the battery.

Front Air/Fuel Ratio (A/F) Sensor (Bank 2, Sensor 1) - Circuit Diagram. Scheme 303

ENABLE CONDITIONS

The VSB2 terminal voltage is 6.0 V or more, and the PCM internal signal voltage is 4.6 V or more, for at least 5 seconds.

Start the engine. Hold the engine speed at 3,000 rpm without load (in Park or neutral) until the radiator fan comes on, then let it idle for 2 minutes.

When a malfunction is detected, the MIL comes on and the DTC and the freeze frame data are stored in the PCM memory.

The MIL will be cleared if the malfunction does not recur during three consecutive trips in which the diagnostic runs.

The MIL, the DTC, and the freeze frame data can be cleared by using the scan tool Clear command or by disconnecting the battery.

Front Air/Fuel Ratio (A/F) Sensor (Bank 2, Sensor 1) - Circuit Diagram. Scheme 304

ENABLE CONDITIONS

The VSB2 terminal voltage is 0.3 V or less, and the IPB2 terminal voltage is 1.0 V or more, for at least 5 seconds* (85 seconds**).

Start the engine. Hold the engine speed at 3,000 rpm without load (in Park or neutral) until the radiator fan comes on, then let it idle for 2 minutes.

When a malfunction is detected, the MIL comes on and the DTC and the freeze frame data are stored in the PCM memory.

The MIL will be cleared if the malfunction does not recur during three consecutive trips in which the diagnostic runs.

The MIL, the DTC, and the freeze frame data can be cleared by using the scan tool Clear command or by disconnecting the battery.

Intake Air System Leak Operation Diagram. Scheme 305

Estimated Volume Of Air - Graph. Scheme 306

ENABLE CONDITIONS

Either of these conditions is met.

1. The estimated volume of intake air is 230 l/min (243.1 US qt/min, 202.4 lmp qt/min) or more when the MAP value is 35 kPa (260 mmHg, 10.3 in.Hg).
2. The estimated volume of intake air is 220 l/min (232.5 US qt/min, 193.6 lmp qt/min) or more when the MAP value is 48 kPa (360 mmHg, 14.2 in.Hg).

1. Start the engine. Hold the engine speed at 3,000 rpm without load (in Park or neutral) until the radiator fan comes on.
2. Let the engine idle for at least 22 seconds.

When a malfunction is detected during the first drive cycle, a Temporary DTC is stored in the PCM memory. If the malfunction recurs during the next (second) drive cycle, the MIL comes on and the DTC and the freeze frame data are stored.

The MIL will be cleared if the malfunction does not recur during three consecutive trips in which the diagnostic runs.

The MIL, the DTC, the Temporary DTC, and the freeze frame data can be cleared by using the scan tool Clear command or by disconnecting the battery.

EGR Valve Sensor Output And Valve Lifting Position Graph. Scheme 307

ENABLE CONDITIONS

If the actual valve lift is 0.15 mm (0.006 in.) or less for at least 5 seconds, the valve is considered stuck closed.

1. Start the engine. Hold the engine speed at 3,000 rpm without load (in Park or neutral) until the radiator fan comes on.
2. Drive the vehicle at a speed between 15 - 75 mph (24 - 120 km/h) for at least 5 seconds. Drive the vehicle in this manner only if the traffic regulations and ambient conditions allow.

When a malfunction is detected during the first drive cycle, a Temporary DTC is stored in the PCM memory. If the malfunction recurs during the next (second) drive cycle, the MIL comes on and the DTC and the freeze frame data are stored.

The MIL will be cleared if the malfunction does not recur during three consecutive trips in which the diagnostic runs.

The MIL, the DTC, the Temporary DTC, and the freeze frame data can be cleared by using the scan tool Clear command or by disconnecting the battery.

FTP Sensor Output And Purge Flow Graph. Scheme 308

Malfunction Judgment Flow Chart. Scheme 309

ENABLE CONDITIONS

The output from the fuel tank pressure sensor is -4 kPa (-25 mmHg, -1.0 in.Hg) or less for at least 3.04 seconds.

Start the engine. Hold the engine speed at 3,000 rpm without load (in Park or neutral) until the radiator fan comes on, then let it idle.

When a malfunction is detected during the first drive cycle, a Temporary DTC is stored in the PCM memory. If the malfunction recurs during the next (second) drive cycle, the MIL comes on and the DTC and the freeze frame data are stored.

The MIL will be cleared if the malfunction does not recur during three consecutive trips in which the diagnostic runs.

The MIL, the DTC, the Temporary DTC, and the freeze frame data can be cleared by using the scan tool Clear command or by disconnecting the battery.

Powertrain Control Module Circuit Diagram. Scheme 310

ENABLE CONDITIONS

The access process to the power off timer fails, or a malfunction is found in the read data for at least 10 seconds.

When a malfunction is detected, the MIL comes on and the DTC and the freeze frame data are stored in the PCM memory.

The MIL will be cleared if the malfunction does not recur during three consecutive trips in which the diagnostic runs.

The MIL, the DTC, and the freeze frame data can be cleared by using the scan tool Clear command or by disconnecting the battery.

Rear Air/Fuel Ratio (A/F) Sensor (Bank 1, Sensor 1) - Circuit Diagram. Scheme 311

ENABLE CONDITIONS

The VLBLB1 voltage is 0.3 V or less for at least 5 seconds.

When a malfunction is detected, the MIL comes on and the DTC and the freeze frame data are stored in the PCM memory.

The MIL will be cleared if the malfunction does not recur during three consecutive trips in which the diagnostic runs.

The MIL, the DTC, and the freeze frame data can be cleared by using the scan tool Clear command or by disconnecting the battery.

Rear Air/Fuel Ratio (A/F) Sensor (Bank 1, Sensor 1) - Circuit Diagram. Scheme 312

ENABLE CONDITIONS

The VLBLB1 voltage is 4.7 V or more for at least 5 seconds.

When a malfunction is detected, the MIL comes on and the DTC and the freeze frame data are stored in the PCM memory.

The MIL will be cleared if the malfunction does not recur during three consecutive trips in which the diagnostic runs.

The MIL, the DTC, and the freeze frame data can be cleared by using the scan tool Clear command or by disconnecting the battery.

Front Air/Fuel Ratio (A/F) Sensor (Bank 2, Sensor 1) - Circuit Diagram. Scheme 313

ENABLE CONDITIONS

The VLBLB2 voltage is 0.3 V or less for at least 5 seconds.

When a malfunction is detected, the MIL comes on and the DTC and the freeze frame data are stored in the PCM memory.

The MIL will be cleared if the malfunction does not recur during three consecutive trips in which the diagnostic runs.

The MIL, the DTC, and the freeze frame data can be cleared by using the scan tool Clear command or by disconnecting the battery.

Front Air/Fuel Ratio (A/F) Sensor (Bank 2, Sensor 1) - Circuit Diagram. Scheme 314

ENABLE CONDITIONS

The VLBLB2 voltage is 4.7 V or more for at least 5 seconds.

When a malfunction is detected, the MIL comes on and the DTC and the freeze frame data are stored in the PCM memory.

The MIL will be cleared if the malfunction does not recur during three consecutive trips in which the diagnostic runs.

The MIL, the DTC, and the freeze frame data can be cleared by using the scan tool Clear command or by disconnecting the battery.

VTEC Oil Pressure Switch - Circuit Diagram. Scheme 315

VTEC OIL PRESSURE SWITCH

ENABLE CONDITIONS

1. When the VTEC solenoid valve is ON, the VTEC oil pressure switch remains ON.

1. Start the engine. Hold the engine speed at 3,000 rpm without load (in Park or neutral) until the radiator fan comes on.
2. Drive the vehicle in a lower gear at 4,200 rpm or more for at least 7 seconds. Drive the vehicle in this manner only if the traffic regulations and ambient conditions allow.

When a malfunction is detected, the MIL comes on and the DTC and the freeze frame data are stored in the PCM memory.

The MIL will be cleared if the malfunction does not recur during three consecutive trips in which the diagnostic runs.

The MIL, the DTC, and the freeze frame data can be cleared by using the scan tool Clear command or by disconnecting the battery.

VTEC Oil Pressure Switch - Circuit Diagram. Scheme 316

VTEC OIL PRESSURE SWITCH

ENABLE CONDITIONS

1. When the VTEC solenoid valve is OFF, the VTEC oil pressure switch remains OFF.

Start the engine, and let it idle for at least 10 seconds.

When a malfunction is detected, the MIL comes on and the DTC and the freeze frame data are stored in the PCM memory.

The MIL will be cleared if the malfunction does not recur during three consecutive trips in which the diagnostic runs.

The MIL, the DTC, and the freeze frame data can be cleared by using the scan tool Clear command or by disconnecting the battery.

Rocker Arm Oil Control Solenoid (Engine Type J35A6) - Circuit Diagram. Scheme 317

ENABLE CONDITIONS

The return signal is OFF (low) for at least 1.1 seconds when the PCM outputs the ON (high) signal to the VTEC solenoid valve.

1. Start the engine. Hold the engine speed at 3,000 rpm without load (in Park or neutral) until the radiator fan comes on.
2. Drive the vehicle in a lower gear at 4,200 rpm or more for at least 7 seconds. Drive the vehicle in this manner only if the traffic regulations and ambient conditions allow.

When a malfunction is detected, the MIL comes on and the DTC and the freeze frame data are stored in the PCM memory.

The MIL will be cleared if the malfunction does not recur during three consecutive trips in which the diagnostic runs.

The MIL, the DTC, and the freeze frame data can be cleared by using the scan tool Clear command or by disconnecting the battery.

Rocker Arm Oil Control Solenoid (Engine Type J35A6) - Circuit Diagram. Scheme 318

ENABLE CONDITIONS

The return signal is ON (high) for at least 2 seconds when the PCM outputs the OFF (low) signal to the VTEC solenoid valve.

Start the engine, and let it idle for at least 10 seconds.

When a malfunction is detected, the MIL comes on and the DTC and the freeze frame data are stored in the PCM memory.

The MIL will be cleared if the malfunction does not recur during three consecutive trips in which the diagnostic runs.

The MIL, the DTC, and the freeze frame data can be cleared by using the scan tool Clear command or by disconnecting the battery.

Torque Converter Clutch Solenoid Valve - Circuit Diagram. Scheme 319

ENABLE CONDITIONS

The return signal does not match the command to turn ON the torque converter clutch solenoid valve for at least 1 second.

1. Start the engine. Hold the engine speed at 3,000 rpm without load (in Park or neutral) until the radiator fan comes on.
2. Drive the vehicle at a steady speed of 37 mph (60 km/h) until the transmission shifts into 5th gear in D position with a constant throttle position. Drive the vehicle in this manner only if the traffic regulations and ambient conditions allow.

When a malfunction is detected, the MIL comes on and the DTC and the freeze frame data are stored in the PCM memory.

The MIL will be cleared if the malfunction does not recur during three consecutive trips in which the diagnostic runs.

The MIL, the DTC, and the freeze frame data can be cleared by using the scan tool Clear command or by disconnecting the battery.

Torque Converter Clutch Solenoid Valve - Circuit Diagram. Scheme 320