MIL Circuit Troubleshooting | 2012-2016 CR-V RM1/RM4,RE5/RE6 HONDA CR-V Service Manual

1.

Gauge control module check:

Gauge control module check

?1.	Turn the vehicle to the ON mode.

?2.	Do the gauge self-diagnostic function.

Does the MIL flash?


	YES

Go to step 2.


	NO

Substitute a known-good gauge control module, then recheck. If the symptom/indication goes away with a known-good gauge control module, replace the original gauge control module.?

2.

PCM check:

PCM check

?1.	Turn the vehicle to the OFF (LOCK) mode.

?2.	Connect the HDS to the DLC.

?3.	Turn the vehicle to the ON mode.

?4.

Check the parameter(s) below with the HDS.

Signal	Threshold		Current Conditions
Signal	Values	Unit	Values	Unit
SCS	Short

Do the current condition(s) match the threshold?


	YES

Go to step 3.


	NO

Update the PCM if it does not have the latest software, or substitute a known-good PCM, then recheck. If the symptom/indication goes away and the PCM was updated, troubleshooting is complete. If the symptom/indication goes away and the PCM was substituted, replace the original PCM.?

3.

Shorted wire check (SCS line):

Shorted wire check (SCS line)

?1.	Turn the vehicle to the OFF (LOCK) mode.

?2.	Jump the SCS line with the HDS, and wait more than 1 minute.

?3.

Disconnect the following connector.

PCM connector A (51P)

?4.	Disconnect the HDS from the DLC.

?5.

Check for continuity between test points 1 and 2.

Test condition	Vehicle OFF (LOCK) mode
	PCM connector A (51P): disconnected
Test point 1	PCM connector A (51P) No. 48
Test point 2	Body ground

Is there continuity?


	YES

Repair a short in the SCS wire between PCM (A48) and the DLC.?


	NO

The SCS wire is OK. Update the PCM if it does not have the latest software, or substitute a known-good PCM, then recheck. If the symptom/indication goes away and the PCM was updated, troubleshooting is complete. If the symptom/indication goes away and the PCM was substituted, replace the original PCM.?