Diagnostic procedure

WARNING: This page is about a different car, the 2005 Mazda MPV. However, it is still accessible from the selected car via links, so may be relevant.

DTC P0706 - DIAGNOSTIC PROCEDURE

STEP	INSPECTION		ACTION
1	VERIFY FREEZE FRAME DATA HAS BEEN RECORDED Has FREEZE FRAME DATA been recorded?	Yes	Go to the next step.
1		No	Record the FREEZE FRAME DATA on the repair order, then go to the next step.
2	VERIFY RELATED REPAIR INFORMATION AVAILABILITY Check for related Service Bulletins and/or online repair information availability. Is any related repair information available?	Yes	Perform repair or diagnosis according to the available repair information. If vehicle is not repaired, go to the next step.
2		No	Go to the next step.
3	INSPECT TCM CONNECTOR FOR POOR CONNECTION Turn ignition switch to OFF. Check for poor connection (damaged pulled-out terminals, corrosion, etc.). Are terminals okay?	Yes	Go to the next step.
3		No	Repair the terminals, then go to Step 12.
4	INSPECT TR SWITCH CIRCUIT Connect voltmeter to TCM. Inspect TCM terminal voltage. TCM terminal 2B P position: B+ Other positions and all ranges: 0 V TCM terminal 1W R position: B+ Other position and all ranges: 0 V TCM terminal 1T N position: B+ Other position and all range: 0 V TCM terminal 1Z D range: B+ Other ranges and all positions: 0 V TCM terminal 1AA 3 range: B+ Other ranges and all positions: 0 V TCM terminal 2C 2 range: B+ Other ranges and all positions: 0 V Are any of following terminal voltage turned on for even a moment while shifting selector lever slowly from P position to 2 range?	Yes	Adjust TR switch, then go to Step 12. (See TRANSAXLE RANGE (TR) SWITCH ADJUSTMENT )
4		No	Go to the next step.
5	INSPECT TR SWITCH CONNECTOR FOR POOR CONNECTION Turn ignition switch to OFF. Check for poor connection (damaged pulled-out terminals, corrosion, etc.). Are terminals okay?	Yes	Go to the next step.
5		No	Repair the terminals, then go to Step 12.
6	INSPECT TR SWITCH CIRCUIT Disconnect the TR switch connector. Connect voltmeter to TCM. Turn ignition switch to ON (engine OFF). Connect harness side connector power line and signal line using jumper wire P position: C and A R position: C and E N position: C and D D range: C and G 3 range: C and I 2 range: C and F Inspect if terminal voltage changes. 0 V to B+ Does terminal voltage change?	Yes	Go to the next step.
6		No	Go to Step 9.
7	INSPECT TR SWITCH FOR OPEN CIRCUIT Turn ignition switch to OFF. Inspect continuity between TR switch terminals (part side). P position: C and A R position: G and E N position: C and D D range: C and G 3 range: C and I 2 range: C and F Is there continuity between TR switch terminals (part side)? (See TRANSAXLE RANGE (TR) SWITCH INSPECTION .)	Yes	Go to Step 12.
7		No	Replace the TR switch, then go to Step 12. (See TRANSAXLE RANGE (TR) SWITCH REMOVAL/INSTALLATION )
8	INSPECT TR SWITCH POWER CIRCUIT FOR OPEN CIRCUIT Check voltage at TR switch terminal C (harness-side). Is there B+ at TR switch terminal C (harness-side)?	Yes	Go to the next step.
8		No	Inspect main fuse. If okay, repair or replace the wiring, then go to Step 12.
9	INSPECT PCM CONNECTOR FOR POOR CONNECTION Turn ignition switch to OFF. Check for poor connection (damaged pulled-out terminals, corrosion, etc.). Are terminals okay?	Yes	Go to the next step.
9		No	Repair the terminals, then go to Step 12.
10	INSPECT TR SWITCH SIGNAL CIRCUIT FOR OPEN CIRCUIT Check continuity between TR switch terminals (harness-side) and TCM terminals (harness-side). P position: A and 2B R position: E and 1W N position: D and 1T D range: G and 1Z 3 range: I and 1AA 2 range: F and 2C Is there continuity?	Yes	Go to the next step.
10		No	Repair or replace the harness, then go to Step 12.
11	INSPECT TR SWITCH CIRCUIT FOR SHORT TO GROUND Check continuity between TCM terminals (harness-side) and body ground. P position: 2B and body ground R position: 1 W and body ground N position: IT and body ground D range: 1Z and body ground 3 range: 1AA and body ground 2 range: 2C and body ground Is there continuity?	Yes	Go to the next step.
11		No	Repair or replace the harness, then go to the next step.
12	VERIFY TROUBLESHOOTING OF DTC P0706 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, 3, and 2) for 100 s or more . Is there pending code present?	Yes	Replace the TCM, then go to the next step. (See TCM REMOVAL/INSTALLATION .)
12		No	Go to the next step.
13	VERIFY AFTER REPAIR PROCEDURE Perform "After Repair Procedure". (See AFTER REPAIR PROCEDURE .) Is there any DTC present?	Yes	Go to the applicable DTC inspection.
13		No	Troubleshooting completed.