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Flash Code Method

NOTE: When using "Flash Code" (2-digit code) method to retrieve DTCs, convert DTCs into 4-digit OBD-II DTC for use in DIAGNOSTIC TESTS. See DTC/FLASH CODE IDENTIFICATION  table.
  1. Ensure O/D cut switch is in OFF (depressed) position. Turn ignition on. If O/D OFF indicator illuminates for about 2 seconds and goes off, go to next step. If O/D OFF indicator does not illuminate, see O/D OFF INDICATOR DOES NOT ILLUMINATE  . If O/D OFF indicator remains illuminated, see O/D OFF INDICATOR REMAINS ILLUMINATED  . If O/D OFF indicator flashes, see O/D OFF INDICATOR FLASHES  .
  2. Locate engine compartment relay box. Using a fused jumper wire, jumper ground terminal of diagnostic connector No. 1 to diagnosis switch terminal of diagnostic connector No. 2. See Fig 1 . If O/D OFF indicator flashes a DTC, record and identify DTC. See DTC/FLASH CODE IDENTIFICATION  table. If O/D OFF indicator does not respond, check for an open in diagnosis switch terminal circuit. Repair as necessary. If wire is okay, substitute TCM with a known-good unit. Retest system.
Fig 1: Identifying Diagnostic Connector Terminals
G96F30622Courtesy of SUZUKI OF AMERICA CORP.
DTC/FLASH CODE IDENTIFICATION

Flash Codes (1) DTC (OBD-II) Condition
12 (2) System Operation Normal
17 P0751  Shift Solenoid No. 1 Performance
21 P0753  Shift Solenoid No. 1 (Open Circuit)
22 P0753  Shift Solenoid No. 1 (Short Circuit)
23 P0758  Shift Solenoid No. 2 (Open Circuit)
24 P0758  Shift Solenoid No. 2 (Short Circuit)
25 P0743  TCC Solenoid (Open Circuit)
26 P0743  TCC Solenoid (Short Circuit)
27 P1895  TCM-To-ECM Torque Reduction Circuit Malfunction
28 P0756  Shift Solenoid No. 2 Performance
29 P0741  TCC Solenoid Performance
31 P0720  VSS (Transaxle) Circuit
32 P1700  TP Sensor Signal Input Malfunction (Open Circuit)
33 P1700  TP Sensor Signal Input Malfunction (Short Circuit)
34 P0705  Trans. Range Switch Circuit
35 P0725  Engine Speed Input Circuit
36 P0710  A/T Fluid Temperature Sensor Open Circuit
37 P0715  Forward Clutch Cylinder Revolution Sensor Circuit
38 P0710  A/T Fluid Temperature Sensor Short Circuit
41 P0745  Pressure Control Solenoid Malfunction (Open Circuit)
42 P0745  Pressure Control Solenoid Malfunction (Short Circuit)
51 P1705  ECT Sensor Signal Input Malfunction
(1) See FLASH CODE METHOD  under RETRIEVING DIAGNOSTIC TROUBLE CODES.
(2) No 4-digit DTC set.
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