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# *01 03 How to Troubleshoot Circuits at the ECM/ ECM/PCM Updating and Substitution for How to Update the ECM/PCM Special Tools Required Special Tools Required 11-6 Fuel and Emissions Systems General Troubleshooting Information (cont’d) 07SAZ-001000A B A C A B • Digital multimeter KS-AHM-32-003 (1) or a commercially available digital multimeter • Backprobe set 07SAZ-001000A (2) 1. Connect the backprobe adapters (A) to the stacking patch cords (B), and connect the cords to a digital 2. Using the wire insulation as a guide for the contoured tip of the backprobe adapter, gently slide 3. If you cannot get to the wire side of the connector or the wire side is sealed (A), disconnect the Do not puncture the insulation on a wire. Honda interface module (HIM) EQS05A35570 Use this procedure when you have to substitute a NOTE: Do not turn the ignition switch OFF while NOTE: • To ensure the latest program is installed, do an ECM/ PCM update whenever the ECM/PCM is substituted or • You can not update an ECM/PCM with the program it already has. It will only accept a new program. • Before you update the ECM/PCM, make sure the vehicle’s battery is fully charged. • To prevent ECM/PCM damage, do not operate anything electrical (audio system, brakes, A/C, power • If you need to diagnose the Honda interface module (HIM) because the HIM’s red ( 3) light came on or was flashing during the update, leave the ignition 1. Turn the ignition switch ON (II). Do not start the engine. 05/06/27 17:31:11 61S6M040_110_0006 |