I've been reading on this and have done the jumper harness swap. The code came back and also threw code IPC 0521. Did a search on IPC 0521 and found nothing. When I cleared the 1226 it also took care of the IPC 0521 before I could even get to clear it. Since the 1226 came back what would you guys recommend be the next step to solve this code (Grounds, Replace Hub)?

 

The DTC for 0521 is “DTC B0521 Tachometer Signal Circuit Malfunction”

For the C1226, have tried any of the following?


DTC C1226 RF Wheel Speed Sensor Input is 0
Step
Action Value(s) Yes No
1 Was the Diagnostic System Check performed? -- Go to Step 2
Go to Diagnostic System Check - ABS

2 1. Inspect the WSS wiring and connectors for damage.
2. Inspect WSS for looseness or damage.
Is physical damage of sensor evident? -- Go to Step 7
Go to Step 3

3
1. Disconnect the WSS at the sensor pigtail.
2. Using J 39200 DMM, measure the resistance between terminals A and B of the WSS.
Is the resistance within the range specified in the value(s) column? 850-1350 ohms Go to Step 4
Go to Step 7

4 1. With J 39200 DMM still connected, select the mV AC scale.
2. Spin the wheel as fast as you can by hand while monitoring the AC output.
Is the AC voltage within the range specified in the value(s) column? Above 100 mV Go to Step 5
Go to Step 7

5
1. Disconnect the EBCM harness connector.
2. Install J 39700 Universal Pinout Box using the J 39700-25 cable adapter to the EBCM harness connector only.
3. Using J 39200 DMM, measure resistance between terminals 14 and 30 of the J 39700 .
Is the resistance within the range specified in the value(s) column? 850-1350 ohms Go to Step 6
Go to Step 8

6 1. Reconnect all connectors.
2. Carefully test drive vehicle above 24 km/h (15 mph) for at least 30 seconds while monitoring a scan tool.
Does DTC reset as a current DTC? -- Go to Step 9
Go to Diagnostic System Check - ABS

7 Replace wheel speed sensor. Refer to Wheel Hub/Speed Sensor Replacement in Front Suspension.
Is the repair complete? -- Go to Step 10
--
8 • If the resistance was low, repair short between CKTs 833 and 872.
• If the resistance was high, check for an open in CKTs 833 or 872.
• If a repair of the jumper harness is needed, replace the jumper harness. Refer to Wiring Repairs in Wiring Systems.
Is the repair complete? -- Go to Step 10
--
9 Replace EBCM. Refer to Electronic Brake Control Module (EBCM) Replacement .
Is the replacement complete? -- Go to Step 10
--
10 Carefully test drive vehicle above 24 km/h (15 mph) while monitoring a scan tool for at least 30 seconds.
Does the DTC set as a current DTC? -- Go to Step 2
Go to Diagnostic System Check - ABS

 

For the C1226 check the female connector that the wheel harness plugs into on the body.