Aim the light toward the pointer (A) on the cam chain case. Check the ignition timing under a no load condition (headlights, blower fan, rear window defogger, and air conditioner are turned off).

Ignition Timing
M/T:	8 °±2 ° BTDC (RED mark (B)) at idle in Neutral
A/T:	8 °±2 ° BTDC (RED mark (B)) at idle in P or N

If the ignition timing differs from the specification, check the cam timing. If the cam timing is OK, update the ECM/PCM, if it does not have the latest software, or substitute a known-good ECM/PCM, then recheck. If the system works properly, and the ECM/PCM was substituted, replace the original ECM/PCM.

Disconnect the HDS and the timing light.