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Code 7 - Max-Hi Relay Error

WARNING: This page is about a different car, the 2006 Suzuki Verona. However, it is still accessible from the selected car via links, so may be relevant.
Fig 1: Code 7 - Max-Hi Relay Error Circuit Diagram
G04720092Courtesy of SUZUKI OF AMERICA CORP.
STEP ACTION VALUE CHART

Step Action Value (s) Yes No
1
  1. Turn the ignition switch ON.
  2. Set the blower speed manually for 5th speed.
  3. Measure voltage between the ATC controller terminal A10 and ground.

Is the voltage approximately equal to the specified value?
≈ 0 Ω Go to Step 3 Go to Step 2
2 Replace the ATC controller.
Is the repair complete?
- System OK -
3
  1. Check the wiring harness associated with the MAX-HI relay for defects or high terminal resistance.
  2. Repair any defects found.

Is the repair complete?
- System OK Go to Step 4
4 Replace the MAX-HI relay.
Is the repair complete?
- System OK -