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Home >> Mazda >> 2017 >> CX-5 Grand Select, FWD >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 4 (On-Board Diagnostic - AWD System) >> DTC P1888-11; P1888-15; Differential Oil Temperature Sensor Circuit >> Diagnostic procedure

Diagnostic procedure

WARNING: This page is about a different variant/trim than selected.
DIAGNOSTIC PROCEDURE

STEP INSPECTION ACTION
1 INSPECT DIFFERENTIAL OIL TEMPERATURE SENSOR CONDITION Yes Go to next step.
No Replace differential oil temperature sensor, then go to Step 7.
2 INSPECT AWD CM TO DIFFERENTIAL OIL TEMPERATURE SENSOR FOR OPEN CIRCUIT
  • Disconnect AWD CM connector.
  • Inspect for continuity between AWD CM terminal A and differential oil temperature sensor terminal A.
  • Is there continuity?
 Yes Go to next step.
No Repair or replace harness for open circuit between AWD CM and differential oil temperature sensor, then go to Step 7.
3 INSPECT AWD CM TO DIFFERENTIAL OIL TEMPERATURE SENSOR FOR SHORT TO POWER
  • Inspect voltage between AWD CM terminal A and ground.
  • Is voltage B+?
 Yes Repair or replace harness for short to power between AWD CM and differential oil temperature sensor, then go to Step 7.
No Go to next step.
4 INSPECT AWD CM TO DIFFERENTIAL OIL TEMPERATURE SENSOR FOR SHORT TO GROUND
  • Inspect for continuity between AWD CM terminal A and ground.
  • Is there continuity?
 Yes Repair or replace harness for short to ground between AWD CM and differential oil temperature sensor, then go to Step 7.
No Go to next step.
5 INSPECT AWD CM TO DIFFERENTIAL OIL TEMPERATURE SENSOR FOR OPEN CIRCUIT
  • Inspect for continuity between AWD CM terminal C and differential oil temperature sensor terminal B.
  • Is there continuity?
 Yes Go to next step.
No Repair or replace harness for open circuit between AWD CM and differential oil temperature sensor, then go to Step 7.
6 INSPECT AWD CM TO DIFFERENTIAL OIL TEMPERATURE SENSOR FOR SHORT TO POWER
  • Inspect voltage between AWD CM terminal C and ground.
  • Is voltage B+?
 Yes Repair or replace harness for short to power between AWD CM and differential oil temperature sensor, then go to next step.
No Go to next step.
7 VERIFY TROUBLESHOOTING COMPLETED Yes Replace AWD CM, then go to next step.
No Go to next step.
8 VERIFY AFTER REPAIR PROCEDURE
  • Is there any other DTC present?
 Yes Go to applicable DTC inspection.
No Troubleshooting completed.
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