General Precautions of EFI System Maintenance
F-68
85. P0571 Brake Switch Signal Circuit Malfunction or Nonsynchronous
Step I: Use diagnostic instrument to read the malfunction information
Read Result I Read Result II
SVS lamp On P-CODE Present SVS lamp Off P-CODE Present
P0571
P0571
Maintenance tips:
The malfunction has been confirmed, and the
following problems may possibly exist
1) Brake switch connected to Pin 58# of ECU open
circuit, short circuited to ground or power
supply.
Maintenance tips:
The malfunction is not ultimately confirmed and it
may possibly be a random malfunction. Inspect the
following items:
1) Check harness circuits of brake switch
connected to Pin 58# of ECU.
86. P0602 Electronic Control Unit Coding Malfunction
Step I: Use diagnostic instrument to read the malfunction information
Read Result I Read Result II
MIL Lamp On P-CODE Present MIL Lamp Off P-CODE Present
P0602
P0602
Maintenance tips:
The malfunction has been confirmed, and the
following problems may possibly exist
1) Replace ECU hardware.
Maintenance tips:
The malfunction is not ultimately confirmed and it
may possibly be a random malfunction. Inspect the
following items:
1) Replace ECU hardware and test three driving
cycle for the problem of ECU.
Battery
Ignition switch
Brake switch
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