DTC C1356 identifies a TCS motor that cannot energize due to an open in the motor circuitry.
DTC C1356 can only set when the TCS motor is commanded off.
A malfunction exists if the EBCM/EBTCM detects an out of range voltage on either of the left front TCS motor circuits indicating an open circuit.
• | An open TCS motor will not activate when requested. |
• | A malfunction DTC stores. |
• | The TCS disables. |
• | The amber TCS indicator turns on. |
• | The condition responsible for setting the DTC no longer exists and the Scan Tool Clear DTC function is used. |
• | 100 drive cycles pass with no DTC detected. |
Use the enhanced diagnostic function of the Scan Tool in order to measure the frequency of the malfunction. Refer to the Scan Tool manual or Scan Tool Diagnostics located in this section for the procedure.
If the malfunction is not current perform the following procedure in order to pinpoint an intermittent malfunction in the motor circuitry or connections:
Thoroughly inspect any circuitry that may cause the intermittent complaint for the following conditions:
• | Rubbed-through wire insulation |
• | A broken wire inside the insulation |
• | Backed out terminals |
• | Improper mating |
• | Broken locks |
• | Improperly formed or damaged terminals |
• | Poor terminal-to-wiring connections |
• | Physical damage to the wiring harness |
Important: Zero the J 39200 test leads before making any resistance measurements.
Step | Action | Value(s) | Yes | No | ||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
1 | Was the Diagnostic System Check performed? | -- | ||||||||||||||
2 | Does DTC C1356 occur intermittently? | -- | Go to Diagnostic Aids | |||||||||||||
3 |
Is the resistance within the specified range? | 0.2-1.5 ohms | ||||||||||||||
4 |
Is the resistance within the specified range? | 0.0-2.0 ohms | ||||||||||||||
5 | Use the J 39200 in order to measure the resistance between the 4-way TCS motor pack connector terminal B and the 8-way EBCM/EBTCM harness connector C3 terminal G. Is the resistance within the specified range? | 0.0-2.0 ohms | ||||||||||||||
6 |
Is there poor terminal contact, terminal corrosion, or terminal damage evident? | -- | ||||||||||||||
7 |
Did DTC C1356 set as a current DTC in the last three drive cycles? | -- | ||||||||||||||
8 | Replace the TCS motor pack. Refer to Traction Control System Motor Pack Replacement . Is the repair complete? | -- | -- | |||||||||||||
9 | Repair the open or the high resistance in CKT 564. Is the repair complete? | -- | -- | |||||||||||||
10 | Repair the open or the high resistance in CKT 565. Is the repair complete? | -- | -- | |||||||||||||
11 | Replace all of the terminals or the connectors that exhibit the following conditions:
Is the repair complete? | -- | -- | |||||||||||||
12 | Replace the EBCM/EBTCM. Refer to Electronic Brake and Traction Control Module Replacement . Is the repair complete? | -- | -- | |||||||||||||
13 | The malfunction is intermittent or not present at this time? Is a concern still present? | -- | Go to Diagnostic Aids |