For 1990-2009 cars

Step | Action | Yes | No
--- | --- | --- | ---
1 | Did you perform the hydraulic brakes diagnostic system check? | Go to Step 2 | Go to Hydraulic Brake Diagnostic System Check
2 |

1. Turn ON the ignition, with the engine OFF.
2. Observe the brake warning indicator.

Does the brake warning indicator illuminate briefly during the bulb check?

Go to Step 3

Go to Step 4

3 | Apply the park brake. Does the brake warning indicator illuminate? | Go to Step 6 | Go to Step 7
4 | Inspect for poor connections at the harness connector of the instrument cluster. Refer to Testing for Intermittent Conditions and Poor Connections and Connector Repairs in Wiring Systems. Did you find and correct the condition? | Go to Step 14 | Go to Step 5
5 | Replace the IPC. Refer to Instrument Cluster Replacement in Instrument Panel, Gauges, and Console. Important: Perform the set up procedure for the IP. Did you complete the replacement and the set up procedure? | Go to Step 14 | --
6 |

1. The brake warning indicator is inoperative from the brake fluid level indicator sensor.
2. Disconnect the brake fluid level indicator sensor.
3. Connect a 3A fused jumper wire between the signal circuit of the brake fluid level indicator sensor and a good ground.

Does the brake warning indicator illuminate?

Go to Step 11

Go to Step 12

7 |

1. Turn OFF the ignition.
2. Disconnect the park brake indicator switch.
3. Turn ON the ignition, with the engine OFF.
4. Connect a 3A fused jumper wire between the signal circuit of the park brake indicator switch and a good ground.

Does the brake warning indicator illuminate?

Go to Step 8

Go to Step 9

8 | Inspect for poor connections or a poor case ground at the park brake indicator switch. Refer to Testing for Intermittent Conditions and Poor Connections and Connector Repairs in Wiring Systems. Did you find and correct the condition? | Go to Step 14 | Go to Step 10
9 |

1. Turn OFF the ignition.
2. Disconnect the instrument cluster.
3. Test the signal circuit of the park brake indicator switch for a high resistance or an open. Refer to Circuit Testing and Wiring Repairs in Wiring Systems.
4. For domestic vehicles, also test the signal circuit of the daytime running lamps control module (DRL) for a high resistance or an open. Inspect for poor connections at the harness connector of the DRL. Refer to Testing for Intermittent Conditions and Poor Connections and Connector Repairs in Wiring Systems.

Did you find and correct the condition?

Go to Step 14

Go to Step 4

10 | Replace the park brake indicator switch. Refer to Parking Brake Indicator Switch Replacement in Park Brake. Did you complete the replacement? | Go to Step 14 | --
11 | Inspect for poor connections or a poor case ground at the brake fluid level indicator sensor. Refer to Testing for Intermittent Conditions and Poor Connections and Connector Repairs in Wiring Systems. Did you find and correct the condition? | Go to Step 14 | Go to Step 13
12 |

1. Turn OFF the ignition.
2. Disconnect the instrument cluster.
3. Test the signal circuit of the brake fluid level indicator sensor for a high resistance or an open. Refer to Circuit Testing and Wiring Repairs in Wiring Systems.

Did you find and correct the condition?

Go to Step 14

Go to Step 4

13 | Replace the brake fluid level indicator sensor. Refer to Brake Fluid Level Indicator Switch Replacement in Hydraulic Brakes. Did you complete the replacement? | Go to Step 14 | --
14 | Operate the system in order to verify the repair. Did you correct the condition? | System OK | Go to Step 2