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Diagnostic procedure

WARNING: This page is about a different car, the 2005 Mazda MX-5 Miata. However, it is still accessible from the selected car via links, so may be relevant.
DTC P0705 DIAGNOSTIC PROCEDURE

STEP INSPECTION ACTION
1 VERIFY FREEZE FRAME DATA HAS BEEN RECORDED 
  • Has FREEZE FRAME PID DATA been recorded?
 Yes Go to next step.
No Record FREEZE FRAME PID DATA on repair order, then go to next step.
2 VERIFY RELATED REPAIR INFORMATION AVAILABILITY 
  • Inspect for related Service Bulletins and/or online repair information availability.
  • Is any related repair information available?
 Yes Perform repair or diagnosis according to available repair information.
  • If vehicle is not repaired, go to next step.
No Go to next step.
3 VERIFY TCM CONNECTOR TERMINAL VOLTAGE 
  • Connect voltmeter to TCM connector.
  • Turn ignition key to ON (engine off).
  • Inspect TCM connector terminal voltage.
    • Terminal F
      • P position: B+ 
      • N position: B+ 
      • Other position and all ranges: 0 V 
    • Terminal D
      • R position: B+ 
      • Other position and all ranges: 0 V 
    • Terminal C
      • D range: B+ 
      • All position and other ranges: 0 V 
    • Terminal B
      • 2 range: B+ 
      • All position and other ranges: 0 V 
    • Terminal A
      • 1 range: B+ 
      • All position and other ranges: 0 V 
  • Are two or more of above terminal voltages B+  at the same time when shifting selector lever from P position to 1 range?
 Yes Go to next step.
No Go to Step 8.
4 INSPECT TR SWITCH CONNECTOR 
  • Turn ignition key OFF.
  • Disconnect TR switch connector.
  • Inspect for bent terminals.
  • Are TR switch terminals okay?
 Yes Go to next step.
No Repair terminals or replace TR switch, then go to Step 10.
5 INSPECT TR SWITCH CIRCUIT MALFUNCTION 
  • Connect voltmeter to TCM connector.
  • Turn ignition key to ON (engine off).
  • Does TCM connector terminal voltage change from B+  to 0 V  when TR switch connector is disconnected?
 Yes Go to next step.
No Go to Step 7.
6 INSPECT TR SWITCH CONTINUITY 
  • Turn ignition key to OFF.
  • Inspect TR switch for continuity in position/ranges failed in Step 4.
  • Is there continuity between TR switch terminals (part-side)?

(See TRANSMISSION RANGE (TR) SWITCH INSPECTION .)		 Yes Go to Step 10.
No Replace TR switch, then go to Step 10.
(See TRANSMISSION RANGE (TR) SWITCH REMOVAL/INSTALLATION .)
7 INSPECT TR SWITCH FOR SHORT TO POWER 
  • Measure voltage at TCM connector male terminals F, D, C, B, and A.
  • Is there 0 V  at TCM connector?
 Yes Go to Step 10.
No Repair or replace wiring, then go to Step 10.
8 TCM TERMINAL CONDITION 
  • Turn ignition key to OFF.
  • Disconnect TCM connector.
  • Inspect for bent terminals.
  • Are TCM terminals okay?
 Yes Go to next step.
No Repair terminals, then go to Step 10.
9 INSPECT TCM CIRCUIT FOR SHORT TO POWER 
  • Remove the TCM connector.
  • Connect voltmeter to TCM.
  • Turn ignition key to ON (engine off).
  • Measure voltage at TCM connector terminals D, F, C, B and A (harness-side).
  • Are voltages 0 V  ?
 Yes Go to next step.
No Repair or replace harness, then go to next step.
10 VERIFY TROUBLESHOOTING OF DTC P0705 COMPLETED 
  • Make sure to reconnect all disconnected connectors.
  • Clear DTC from memory using WDS or equivalent.
  • Drive vehicle in each range (P, R, N, D, 2, and 1) for 10 seconds or more. 
  • Is same DTC present?
 Yes Replace TCM, then go to next step.
(See TRANSMISSION CONTROL MODULE (TCM) REMOVAL/INSTALLATION .)
No Go to next step.
11 VERIFY AFTER REPAIR PROCEDURE  Yes Go to applicable DTC inspection.
No Troubleshooting completed.
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