ANUAL SERVICE M

IGNITION SYSTEM INSPECTION

• If there is no spark at the plug, check all connec­tions for loose or poor contact before measuring each peak voltage.

• Use the recommended digital multimeter or a commercially available digital multimeter with an impedance of 10 Mti/DCV minimum.

• The display value differs depending upon the internal impedance of the multimeter.

Connect the peak voltage tester (IgnitionMate,

U. S.A. only) or peak voltage adapter to the digital

multimeter.

TOOLS:

IgnitionMate peak voltage tester MTP07-0286

(U. S.A. only) or

Peak voltage adaptor 07HGJ-0020100

(not available in U. S.A.)

with commercially available digital multimeter

(impedance 10 Mi2/DCV minimum)

IGNITION COIL PRIMARY PEAK VOLTAGE

Check all system connections before inspection.

If the system is disconnected, incorrect peak voltage might be measured.

Check cylinder compression and check that the spark plug is installed correctly.

Remove the fuel tank (page 3-8).

Shift the transmission into neutral.

Connect a known-good spark plug to the spark plug cap and ground the spark plug to the cylinder as done in a spark test.

With the ignition coil primary wire connected, con­nect the peak voltage adaptor to the ignition coil.

TOOLS:

IgnitionMate peak voltage tester MTP07-0286

(U. S.A. only) or

Peak voltage adaptor 07HGJ-0020100

(not available in

U. S.A.)

with commercially available digital multimeter (impedance 10 MO/DCV minimum)

CONNECTION: Body ground (+) - Black/yellow (-)

Shift the transmission into neutral.

Crank the engine and read the ignition coil primary peak voltage.

STANDARD: 100 V minimum

If there is no voltage, check the continuity in Black/ yellow and Green/Ыаск wires between the ignition coil and ICM.

If the wires are good, follow the checks described in the troubleshooting chart on page 18-4.

EXCITER COIL RESISTANCE

Remove the radiator shroud (page 3-4).

Disconnect the alternator 4P (Black) connector.

Measure the exciter coil resistance between the connector terminals.

CONNECTION: Black/red - Blue

STANDARD: 9 - 28 П (20°C/68°F)

If resistance is out of specification, replace the alter­nator.

IGNITION PULSE GENERATOR PEAK VOLTAGE

Remove the left side cover (page 3-3).

Disconnect the ICM 6P (Natural) connector.

Connect the peak voltage adaptor probes to the con­nector terminals of the wire harness side.

TOOLS:

IgnitionMate peak voltage tester MTP07-0286

(U. S.A. only) or

Peak voltage adaptor 07HGJ-0020100

(not available in U. S.A.)

with commercially available digital multimeter (impedance 10 МП/DCV minimum)

CONNECTION: Blue/yellow (+) - Green/white (-)

Crank the engine and read the peak voltage.

PEAK VOLTAGE: 0.7 V minimum

If the peak voltage measured is abnormal, recheck the following:

Remove the left side radiator shroud (page 3-4). Disconnect the ignition pulse generator 2P (Black) connector.

Connect the peak voltage adapter to the connector terminals of the ignition pulse generator side and recheck the peak voltage.

If the peak voltage at the ICM connector is abnormal and peak voltage at the ignition pulse generator connector is normal, check for poorly connected connectors or a broken wire harness.

If the peak voltage is abnormal at both connectors, follow the checks described in the troubleshooting chart on (page 18-4).