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7A1–68 TRANSMISSION CONTROL SYSTEM (4L30–E) DTC P1835/Flashing Code 87 Kickdown Switch Always On Step Action Yes No 1 1. Install the scan tool. NOTE: Before clearing DTC(s), use the scan tool to record “Failure 3. Record the DTC “Failure Records”. Does the scan tool display “Kickdown switch” “low” (closed Go to Step 2 Go to Step 3 2 1. Turn the ignition “off”. connector terminal C3–F11 and ground. Is there a continuity? Go to Step 4 Go to Step 7 3 The TP angle goes from 0% to 100% with the accelerator pedal Does the kickdown switch “on” when TP angle is below 70%? Go to Step 5 Go to Diagnostic Aids 4 1. Disconnect the kickdown switch connector C–29. terminals C29–1 and C29–2. Is there a continuity? Go to Step 6 Go to Step 8 5 Adjust the kickdown switch. Does the kickdown switch “on” when TP angle is above 95%? Go to Step 9 — 6 Replace the kickdown switch. Is the replacement complete? Go to Step 9 — 7 Replace the PCM. Refer to Powertrain Control Module (PCM) in Is the replacement complete? Go to Step 9 — 8 Repair the short to ground in circuit LT BLUE. Is the repair complete? Go to Step 9 — 9 1. After the repair is complete, use the scan tool to select “DTC”, then “Clear Info” function and ensure the following condition is ° C (140 ° F) for at least 5 seconds. 2. Review the scan tool “DTC Info”. Has the last test failed or is the current DTC displayed? Begin diagnosis again Go to Step 1 Repair verified |