Ignition Timing Inspection
1. HDS DLC - Connect

NOTE: For specific operations, refer to the user's manual that came with the HDS. Make sure the HDS is loaded with the latest software.
2.
Press the engine start/stop button to select the ON mode.
3.
Make sure the HDS communicates with the vehicle. If it does not communicate, go to the DLC circuit troubleshooting.

2. DTC - Check

Check for DTCs. If a DTC is present, diagnose and repair the cause before continuing with this inspection.

3. Engine - Warm Up

Start the engine. Hold the engine speed at 3,000 rpm with no load (in neutral (M/T) or P or N (A/T)) until the radiator fan comes on, then let it idle.

4. Idle Speed - Check

Check the idle speed.

5. Ignition Timing - Inspect
1.
Press the engine start/stop button to select the OFF mode.
2.
Jump the SCS line with the HDS.
3.
Start the engine.
4.
Connect the timing light to the No. 1 ignition coil harness.
5.
Aim the light toward the pointer (A) on the timing belt lower cover. Check the ignition timing under a no load condition (headlights, blower fan, rear window defogger, and air conditioner are turned off).
NOTE: The other pointer (B) is not used.
Ignition Timing
M/T:
5±2 °BTDC (RED mark (B)) at idle in neutral
A/T:
5±2 °BTDC (RED mark (C)) at idle in P or N
6.
If the ignition timing differs from the specification, check the camshaft timing. If the camshaft timing is OK, update the PCM if it does not have the latest software, or substitute a known-good PCM, then recheck. If the system works properly, and the PCM was substituted, replace the original PCM.
7.
Disconnect the HDS and the timing light.