What this code means
B1036 may mean the body control module is seeing an inconsistency between the direct IG1 input and the IG1 status reported from the gauge control module over B-CAN.
What the vehicle may do
- The vehicle may show power-mode related electrical symptoms.
- Warning indicators or body electrical behavior may be present depending on the condition.
- The code can also appear with other body or network-related faults.
Possible fault areas
- Possible IG1 power supply circuit concern
- Possible gauge control module connector or terminal concern
- Possible wiring issue in the IG1_METER path
- Possible B-CAN context when multiple body codes are present
Diagnostic path
Open on what B1036 is looking at
On this 2020 to 2025 Honda CR-V Hybrid, B1036 is an IG1 power supply circuit fault watched by the body control module. In plain language, the module is comparing the IG1 signal it sees directly against the IG1 signal being reported over B-CAN from the gauge control module. If those two do not agree long enough, the code can set. The vehicle may show body electrical or power-mode related symptoms, and the broad possible fault areas can include the IG1 power supply path, the gauge control module connection area, wiring, terminals, or communication-related context. If other codes are present, check what they mean first instead of treating this one in isolation.
Confirm the code under the monitor conditions
Before getting into pinpoint testing, start with the basic troubleshooting approach for this system. Then reproduce the operating condition for the monitor. Turn the vehicle to the ON mode, then wait for at least 6 seconds. That is the basic confirmation window before moving into the IG1_METER circuit inspection.
Prepare for the IG1_METER circuit check
For the IG1_METER circuit inspection, set up at the gauge control module. The gauge control module connector A, the 32-pin connector, is disconnected for this check. Treat the connector identification carefully before probing, because this test depends on being on the correct disconnected connector and the correct female-terminal side.
Check the IG1_METER power feed result
With connector A disconnected, perform the IG1_METER inspection in IG Mode on the disconnected female terminals. The normal condition for the IG1_METER circuit is 12 V battery voltage. If the result is abnormal, the fault is in the circuit. If the power supply portion of that inspection is abnormal, continue with the additional power supply inspection to narrow down where the circuit failure is.
Verify after the circuit issue is addressed
Keep verification separate from the circuit test. After the circuit concern is handled, run the same confirmation condition again: vehicle in ON mode, wait for at least 6 seconds, and confirm B1036 does not reset. The takeaway is simple: this code is about disagreement in the IG1 information the body control module is seeing, so prove the monitor condition first, then prove the IG1_METER feed before chasing anything else. For more diagnostic training, visit stepdiagnostics.com.
Final check
Confirm the ON-mode monitor condition first, then test the IG1_METER feed and follow the power supply path only if the circuit result is abnormal.
For more guided automotive diagnostics, visit STEP Diagnostics.
