The remote control door lock receiver (RCDLR) provides high side drive output voltage for the ignition 1 voltage circuit. The RCDLR controls the Run/Crank relay when the backup power mode is enabled.
The diagnostic procedure supports the following DTCs:
DTC B1370 Device Ignition 1 (ON and START) Circuit
The vehicle has DTCs including the DTC symptoms. For more information on DTC symptoms, refer to DTC Symptom Description .
DTC Symptom | DTC Symptom Descriptor |
---|---|
01 | Short to Battery |
02 | A Short to Ground |
04 | Open Circuit |
• | Voltage supplied to the module is in the normal operating voltage range of 9-16 volts. |
• | Backup power mode is enabled. |
• | The RCDLR detects a short to ground in the ignition 1 voltage circuit when the output is active. |
• | The RCDLR detects a short to battery or an open in the ignition 1 voltage circuit when the output is inactive. |
• | Any of the conditions above must be present for more than 0.375 second. |
The RCDLR disables the output for the current ignition cycle when a short to ground is detected.
• | A current DTC clears when the malfunction is no longer present. |
• | When the ignition cycle counter has reached the newly set threshold and no trouble occurs repeatedly, the history DTC will be cleared. |
Step | Action | Yes | No |
---|---|---|---|
Schematic Reference: Power Distribution Schematics Connector End View Reference: Master Electrical Component List | |||
1 | Did you perform the Diagnostic System Check - Vehicle? | Go to Step 2 | |
2 | Was the DTC symptom 04? | Go to Step 7 | Go to Step 3 |
3 | Was the DTC symptom 02? | Go to Step 4 | Go to Step 5 |
4 |
Is the code still set as current? | Go to Step 5 | Go to Step 14 |
5 |
Is the code still set as current? | Go to Step 6 | Go to Step 12 |
6 |
Did you find and correct the condition? | Go to Step 15 | Go to Step 10 |
7 |
Is the code still set as current DTC? | Go to Step 8 | Go to Step 14 |
8 |
Did you find and correct the condition? | Go to Step 15 | Go to Step 9 |
9 |
Did you find and correct the condition? | Go to Step 15 | Go to Step 10 |
10 | Inspect for poor connections and terminal tension at the harness connector of the RCDLR module. Refer to Testing for Intermittent Conditions and Poor Connections . Did you find and correct the condition? | Go to Step 15 | Go to Step 11 |
11 | Replace the RCDLR module. Refer to Control Module References for replacement, setup, and programming. Did you complete the replacement? | Go to Step 15 | -- |
12 | Inspect for poor connections and terminal tension at the harness connector of the IPM. Refer to Testing for Intermittent Conditions and Poor Connections . Did you find and correct the condition? | Go to Step 15 | Go to Step 13 |
13 | Replace the IPM. Refer to Control Module References for replacement, setup, and programming. Did you complete the replacement? | Go to Step 15 | -- |
14 | Replace the run/crank relay. Did you complete the replacement? | Go to Step 15 | -- |
15 |
Does the DTC reset? | Go to Step 2 | System OK |