Immobilizer Indicator Lamp Does Not Come On With Ignition Switch On And Engine Stop: Troubleshooting

TROUBLESHOOTING CHART

Step	Action	YES	NO
1	Immobilizer indicator lamp power supply check Turn the ignition switch to ON position. Do other warning lights come ON?	Go to Step 2.	Go to Step 3.
2	Diagnostic Trouble Code (DTC) check Check if DTC P1674, P1675, P1678 and/or P1685 are detected by ECM referring to DIAGNOSTIC TROUBLE CODE (DTC) CHECK . Is any of them detected?	Perform the troubleshooting. Refer to appropriate DTC diagnostics.	Replace combination meter with a known-good one and recheck. If the immobilizer indicator lamp still remains OFF, replace ECM with a known-good one and recheck.
3	Fuse check Turn the ignition switch to OFF position. Check if any related fuse is blown. Is any fuse blown?	Replace blown fuse, and then check for short.	Go to Step 4.
4	Combination meter power supply wire circuit check Remove combination meter referring to COMBINATION METER REMOVAL AND INSTALLATION . Check for proper connection at "G28-13" and "G28-15" wire terminals of combination meter connector. If OK, turn the ignition switch to ON position and measure voltage between "G28-13" wire terminal of combination meter and vehicle body ground. Is it 10 - 14 V?	Go to Step 5.	Repair open in power supply wire circuit.
5	Combination meter ground wire circuit check Turn ignition switch OFF position. Measure resistance between "G28-15" terminal of combination meter connector and vehicle body ground. Is resistance 1 Ω or less?	Replace combination meter with a know-good one and recheck. If the immobilizer indicator lamp still remains OFF, replace ECM with a known-good one and recheck.	Repair open or high resistance in ground wire circuit.