NOTICE: In this section, the terms "cold" and "hot" refer to the temperature of the coils. "Cold" means approximately - 10°C (14°F) to 50°C (122°F). "Hot" means approximately 50°C (122°F) to 100°C (212°F). |
1. INSPECT IGNITION COIL ASSEMBLY
(a) Check for DTCs.
NOTICE: If any DTC is present, perform troubleshooting in accordance with the procedures for that DTC. |
(b) Remove the ignition coil assembly and spark plug.
(See page IG-8).
(c) Check that sparks occur.
(1) Disconnect the 6 fuel injector connectors.
(2) Install the spark plugs to each ignition coil, and connect the ignition coil connectors.
(3) Ground the spark plugs.
(4) Check if a spark occurs at each spark plug while the engine is being cranked.
NOTICE:
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(d) Perform the spark test according to the flowchart below.
(1) Check that the ignition coil connector is securely connected.
Result
(2) Perform a spark test on each ignition coil.
1. Replace the ignition coil with a normal one.
2. Perform the spark test again.
Result
(3) Check the spark plug (See page EM-1).
Result
(4) Check the power supply to the ignition coil.
1. Turn the ignition switch to the ON position.
2. Check that there is battery voltage at the ignition coil positive (+) terminal.
Result
(5) Measure the resistance of the crankshaft position sensor (See page ES-514).
Result
(6) Check the IGT signal from the ECM (See page ES-233)
Result
(e) Using a 16 mm (0.63 in.) plug wrench, install the spark plugs.
Torque: 18 N*m (184 kgf*cm, 13 ft.*lbf) (f) Connect the 6 fuel injector connectors.
(g) Install the ignition coil assembly (See page IG-10).
2. INSPECT SPARK PLUG
NOTICE:
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(a) Check the electrode.
(1) Using a megohmmeter, measure the insulation resistance.
Standard insulation resistance: 10 MΩ or higher
HINT:
(b) Alternative inspection method: (1) Quickly accelerate the engine to 4000 rpm 5 times.
(2) Remove the spark plugs.
(3) Visually check the spark plug.
If the electrode is dry, the spark plug is functioning properly. If the electrode is damp, proceed to the next step.
(c) Check the spark plug for any damage to its threads and insulator. If there is damage, replace the spark plug.
Recommended spark plug
NOTICE: Use only the listed spark plug or equivalent to ensure engine performance and smooth driveability. |
(d) Check the spark plug electrode gap.
Maximum electrode gap for used spark plug: 1.4 mm (0.055 in.) If the gap is greater than the maximum, replace the spark plug.
Electrode gap for new spark plug: 1.0 to 1.1 mm (0.039 to 0.043 in.)
(e) Clean the spark plugs.
If the electrode has traces of wet carbon, clean the electrode with a spark plug cleaner and then dry it.
Standard air pressure: 588 kPa (6 kgf*cm2, 85 psi) Standard duration: 20 seconds or less
HINT: Only use the spark plug cleaner when the electrode is free of oil. If the electrode has traces of oil, use gasoline to clean off the oil before using the spark plug cleaner.
(f) Install the ignition coil assembly and spark plug.
(See page IG-10).
Reassembly
1. INSTALL LIGHT CONTROL ECU (DISCHARGE HEADLIGHT)
Install a new headlight leveling motor base packing.
Install the headlight leveling motor assembly as
shown in the illustration.
Connect the connector with the claw
Install the light control ECU with the 2 ...
Occupant Classification ECU Malfunction
DTC B1795 Occupant Classification ECU Malfunction
DESCRIPTION
DTC B1795 is recorded when a malfunction is detected in the occupant
classification ECU.
Troubleshoot DTC B1771 first when the DTCs B1771 and B1795 are output
simultaneously.
WIRING DIAGRAM
INSPECTION PROCEDURE
1 CHECK DTC ...
On-vehicle inspection
1. INSPECT MASS AIR FLOW METE
NOTICE:
Perform the mass air flow (MAF) meter inspection
by following the procedures below.
Only replace the MAF meter when the MAF value
in the DATA LIST (with the engine stopped) are
not within the normal operating range or there is
fore ...