Z50

PRELIMINARY CHECKS

NOTE: This pinpoint test is intended to be used only with Rotunda's Intermittent Ignition Analyzer Part No. (Rotunda 007-00075). If this analyzer is not available, return to Z1 and choose another procedure. Z1 - Intermittent Test Procedure

Quick Test must be performed and instructions in the EEC-V Pinpoint Test steps completed before starting the intermittent Ignition procedure.

NOTE: Spark timing adjustments are not possible.

When making voltage checks, a GROUND or LOW reading means any value within a range of 0 to 1 volt. Also, VPWR or COIL PWR or HIGH readings mean any value that falls within a range of B+ to 2 volts less than B+.

When making resistance checks, make sure the ignition is in the key off position and the Scan Tool is disconnected from the DLC.

For ICM Pin-Outs and System and Component Descriptions, refer to Ignition System.

Equipment Required for this Pinpoint:
- Volt-Ohmmeter (Rotunda 105-00050).
- Ignition Intermittent Analyzer (Rotunda 007-00075).

- Check sensor shield connector.

- Be certain the battery is fully charged.

- All accessories should be off during diagnosis.

- Is vehicle prepared for equipment set-up?

Yes -- GO to Z51. Z51

No -- REPEAT Z50.