Charging System Indicator; Circuit Troubleshooting - Honda Accord 2008 Manual

07/11/02 09:05:31 61TA0000_040_0027
Charging System
Charging System Indicator Circuit Troubleshooting
1. Turn the ignition switch to ON (II).
Does the charging system indicator come on?
YES − Go to step 2.
NO − Go to step 14.
2. Start the engine. Hold the engine speed at
2,000 rpm for 1 minute.
Does the charging system indicator go of f ?
YES − Charging system indicator circuit is OK. Go
to the alternator and regulator circuit
troubleshooting (see page 4-28).
NO − Go to step 3.
3. Do the gauge control module self-diagnostic
function procedure (see page 22-312).
Does the charging system indicator f lash?
YES − Go to step 4.
−
NO Replace the gauge control module (see page
22-332).
4. Turn the ignition switch to LOCK (0).
5. Disconnect the alternator 4P connector.
6. Turn the ignition switch to ON (II).
Does the charging system indicator go of f ?
YES − Replace the alternator (see page 4-34), or
repair the alternator (see page 4-36).
NO − Go to step 7.
4-26
7. Turn the ignition switch to LOCK (0).
8. Connect the Honda Diagnostic System (HDS) to the
data link connector (DLC) (see step 2 on page 11-3).
9. Turn the ignition switch to ON (II).
10. Make sure the HDS communicates with the vehicle
and the engine control module (ECM)/powertrain
control module (PCM). If it doesn't communicate,
troubleshoot the DLC circuit (see page 11-208).
11. Jump the SCS line with the HDS, then turn the
ignition switch to LOCK (0).
NOTE: This step must be done to protect the ECM/
PCM from damage.
12. Disconnect ECM/PCM connector B (49P).
13. Check for continuity between ECM/PCM connector
terminal B46 and body ground.
ECM/PCM CONNECTOR B (49P)
Terminal side of female terminals
Is there continuity?
−
YES Repair short in the wire between the
alternator and the ECM/PCM.
NO − Update the ECM/PCM if it does not have the
latest software (see page 11-231), or substitute a
known-good ECM/PCM (see page 11-7), then
recheck. If the symptom/indication goes away with
a known-good ECM/PCM, replace the original ECM/
PCM (see page 11-232).
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ALT L
(WHT/BLU)
＊０１